Hi,
I’ve got an older Verizon LG V20 that’s been bricked. I hid it in a drawer for the past year or so, and stumbled across it again. If I can get this fixed, I’d love to update it and give it as a gift to an older friend who has a 6 yr old crap android phone. But first, some history…
-bought used in great shape and rooted with Dirty Santa to run on TMobile. I don't recall which ROM I used, but it was very stock minus the carrier apps. My wife had a chance to go to Italy, so we bought a 3rd party european SIM with 30 days of data and voice from Three UK. Short story is that the phone never recognized the SIM, but she used it to take some great pics during her stay.
-once back in the US, I decided to try a different ROM and I think I flashed the wrong files or something… it’s my fault but I honestly can’t recall if I loaded a Samsung image instead, or what exactly happened.
Currently, the phone boots ONLY into fastboot mode. ADB does not recognize the device, and I’m thinking that I’ve lost TWRP Recovery since I can’t enter Recovery Mode at all.
If I do hold Vol Down + Power, I get a Hard Reset menu, but nothing in there helps.
I tried using LGUP, but the device is "not recognized."
I’m at a loss as to what to do at this point. If there IS a way to un-brick this, I think it would make a great phone for a good friend.
If anyone has any suggestions, I’d love any ideas that you may have. I tried looking to see if any other threads cover this, but I’m not seeing anything with specifics or pointers to How-Tos. If I missed the relevant links, I’d appreciate being pointed to them.
Also…
-if I can return to Stock condition, I can then unlock the bootloader and flash a more current ROM again. Would I need to pick a new radio so it better matches TMobile vs the Verizon setup it originally came with?
thanks for reading!
motionmonk
Since you can get to fastboot why not flash a twrp to see if you will get recovery
0x0null said:
Since you can get to fastboot why not flash a twrp to see if you will get recovery
Click to expand...
Click to collapse
When I run fastboot in Terminal, I get a blank response-- that is, a simple carraige return with no info listed.
This is on a fresh Win10 install with the latest Platform Tools package (Justt adb & fastboot) from the Android Studio website.
Are there other drivers that I need? When I installed LGUP, I did install the LGMobileDriver_WHQL_Ver_4.1.1.exe installer as well.
-motionmonk
motionmonk said:
When I run fastboot in Terminal, I get a blank response-- that is, a simple carraige return with no info listed.
This is on a fresh Win10 install with the latest Platform Tools package (Justt adb & fastboot) from the Android Studio website.
Are there other drivers that I need? When I installed LGUP, I did install the LGMobileDriver_WHQL_Ver_4.1.1.exe installer as well.
-motionmonk
Click to expand...
Click to collapse
That is bad, can you try it ona windows 7 PC?
0x0null said:
That is bad, can you try it ona windows 7 PC?
Click to expand...
Click to collapse
I could... I need to find my Win7 install disks for an old laptop.
I'll report back by tomorrow.
I don't do this often... what makes WIndows 7 a better method than Win 10?
-motionmonk
motionmonk said:
I could... I need to find my Win7 install disks for an old laptop.
I'll report back by tomorrow.
I don't do this often... what makes WIndows 7 a better method than Win 10?
-motionmonk
Click to expand...
Click to collapse
issues with drivers
It took longer than I thought to find my Win7 installers... I'm in the middle of the reinstall now.
I plan to load the Android Platform Tools, LG Mobile Drivers, LGUP framework... is there anything else I should install?
thanks for any suggestions; I don't root often at all and am rusty at this
-motionmonk
Win 7 update
Ok, I've installed WIN7, Android Platform Tools (just ADB & Fastboot), LG drivers and LGUP.
Now when I do the fastboot command, I get a true response:
fastboot devices
VS995aa11a111 fastboot (where a=letters, 1=numbers)
YAY!
So at this point, if I load a TWRP.zip, would I be able to boot into Recovery, instead of fastboot mode?
I checked the official TWRP website, and the latest is TWRP 3.2.3-0.
EDIT: I looked in the LG Section, and it appears that there is not an official TWRP for the LG V20. Is that right?
Having gotten to the point where the laptop recognizes the phone, I really don't want to make a dumb mistake :silly:
thanks for getting me this far!
-motionmonk
motionmonk said:
Win 7 update
Ok, I've installed WIN7, Android Platform Tools (just ADB & Fastboot), LG drivers and LGUP.
Now when I do the fastboot command, I get a true response:
fastboot devices
VS995aa11a111 fastboot (where a=letters, 1=numbers)
YAY!
So at this point, if I load a TWRP.zip, would I be able to boot into Recovery, instead of fastboot mode?
I checked the official TWRP website, and the latest is TWRP 3.2.3-0.
EDIT: I looked in the LG Section, and it appears that there is not an official TWRP for the LG V20. Is that right?
Having gotten to the point where the laptop recognizes the phone, I really don't want to make a dumb mistake :silly:
thanks for getting me this far!
-motionmonk
Click to expand...
Click to collapse
There is no official twrp build for the V20, search for Phoenix's unofficial twrp thread
Sent from my LG-H910 using XDA Labs
cnjax said:
There is no official twrp build for the V20, search for Phoenix's unofficial twrp thread
Sent from my LG-H910 using XDA Labs
Click to expand...
Click to collapse
Thank you cnjax... I think I got it now:
recovery-twrp-vs995-2018-10-18
Now that I have the TWRP Installer, I connect the phone (in perma-fastboot mode), and verify that it is connected by using fastboot devices. I get a recognition string in reply. So now I move on...
-rename recovery-twrp-vs995-2018-10-18.img as TWRP.img
-move TWRP.img to my platform-tools folder
-issue flashing command fastboot flash recovery TWRP.img
Here's what I get:
Sending 'recovery' (25984 KB)
OKAY [ 0.889s]
Writing 'recovery'
FAILED (REMOTE: 'unknown command'}
Finished. Total time: 1.092s
I'm pretty sure I have the syntax correct, and the TWRP.img file is being recognized, but -something- isn't working.
Have I missed something here?
thanks for any suggestions,
motionmonk
fastboot help pages
motionmonk said:
Now that I have the TWRP Installer, I connect the phone (in perma-fastboot mode), and verify that it is connected by using fastboot devices. I get a recognition string in reply. So now I move on...
-rename recovery-twrp-vs995-2018-10-18.img as TWRP.img
-move TWRP.img to my platform-tools folder
-issue flashing command fastboot flash recovery TWRP.img
Here's what I get:
Sending 'recovery' (25984 KB)
OKAY [ 0.889s]
Writing 'recovery'
FAILED (REMOTE: 'unknown command'}
Finished. Total time: 1.092s
I'm pretty sure I have the syntax correct, and the TWRP.img file is being recognized, but -something- isn't working.
Have I missed something here?
thanks for any suggestions,
motionmonk
Click to expand...
Click to collapse
Hi
I'm just a noob but I am interested in the problem you are having and am following it to see what comes up with it.
There is a good fastboot thread here:
https://forum.xda-developers.com/showthread.php?t=2277112
On the first page you have options to wipe before flashing - i.e. system, boot, data, RECOVERY etc,
Maybe give those pages a read while waiting for someone more knowledgeable to fix your phone...
Since you are not sure what happened maybe the modem was affected which I think is bad...
I think doing a "fastboot getvar all" might give you a status of what you are dealing with .... since it gives you versions
of things...
Anyhow, good luck reviving the phone - "rooting" for you haha!
---------- Post added at 10:33 PM ---------- Previous post was at 10:05 PM ----------
This link might also be a good read
https://forum.xda-developers.com/v20/how-to/guide-lg-v20-to-life-t3827732
secondhand2 said:
There is a good fastboot thread here:
https://forum.xda-developers.com/showthread.php?t=2277112
. . .
I think doing a "fastboot getvar all" might give you a status of what you are dealing with .... since it gives you versions
of things...[/url]
Click to expand...
Click to collapse
secondhand2,
THX for the links! Those were very helpful!
No need to call yourself a noob... I think I outrank you in that department at this point!
I did try your suggestion of fastboot getvar all, and found something interesting...
when I did the command it returned (bootloader) unlocked:no
which I thought was WEIRD, since the phone -was- unlocked with a custom ROM before I messed things up.
I have attached a screenshot to this msg with the full info report.
So now I'm wondering if that's why my previous attempt at flashing TWRP failed?
Does this mean I have a soft-brick or a hard-bricked phone at this point?
I"m learning more through everyone's help and input, but I'm still lost as to where to go from here.
Hi,
I have a US996 and I unlocked it using the lg web site - they send a bin file that you can use to unlock the phone.
There are different exploits on different versions of V20 phones. THere are also versions of Nougat that have an anti rollback that stop you from going from a recent OTA update back to an older one that can be exploited to get root. For example, on the US996 I have., if I had bought it and it had been patched with 10p (not 100% sure which version was the cutoff point) even if the phone was unlocked, I might not be able to get root. So the versions of the ROMs/firmware are imnportant. As it happened I had the 10f version so rooting was possible - but I followed the threads on this site for my specific phone and stuck to STOCK rom's.
So I'm not sure about what ROM you have - i..e which version of the vs995 is rootable after you unlock the phone. And the unlocking method to use - I'm not familiar with dirty santa or lafsploit (might not have spelled that correctly). There is a tool called LGUP and a good thread on that below that I was reading but it is long read which is good for learning.
I can only point you to some threads - but unlocking is the next hurdle.
You might also want to use the latest TWRP and Magisk if you do get to root the phone. I used PHOENIX591's TWRP
- there is a good thread on that. https://forum.xda-developers.com/v2...-t3720239/post78529520?nocache=1#post78529520
Sorry I can't help you more with this - you do need to get the phone unlocked first. Some of these things are very device specific
I'm still keeping an interested eye on this...
Here is the other thread
https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
Good Luck!
secondhand2 said:
Hi,
I have a US996 and I unlocked it using the lg web site - they send a bin file that you can use to unlock the phone.
There are different exploits on different versions of V20 phones. THere are also versions of Nougat that have an anti rollback that stop you from going from a recent OTA update back to an older one that can be exploited to get root. For example, on the US996 I have., if I had bought it and it had been patched with 10p (not 100% sure which version was the cutoff point) even if the phone was unlocked, I might not be able to get root. So the versions of the ROMs/firmware are imnportant. As it happened I had the 10f version so rooting was possible - but I followed the threads on this site for my specific phone and stuck to STOCK rom's.
So I'm not sure about what ROM you have - i..e which version of the vs995 is rootable after you unlock the phone. And the unlocking method to use - I'm not familiar with dirty santa or lafsploit (might not have spelled that correctly). There is a tool called LGUP and a good thread on that below that I was reading but it is long read which is good for learning.
I can only point you to some threads - but unlocking is the next hurdle.
You might also want to use the latest TWRP and Magisk if you do get to root the phone. I used PHOENIX591's TWRP
- there is a good thread on that. https://forum.xda-developers.com/v2...-t3720239/post78529520?nocache=1#post78529520
Sorry I can't help you more with this - you do need to get the phone unlocked first. Some of these things are very device specific
I'm still keeping an interested eye on this...
Here is the other thread
https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
Good Luck!
Click to expand...
Click to collapse
You're incorrect arb hasn't been incremented on the 996
Sent from my LG-H910 using XDA Labs
Hi cnjax
The thread I used discussed arb but from what I remember it was never clear how to know which arb ( 0 or 1 ) a particular update was at. Are you saying there is never an increment for the us996?
Thank you for clarifying
secondhand2 said:
Hi cnjax
The thread I used discussed arb but from what I remember it was never clear how to know which arb ( 0 or 1 ) a particular update was at. Are you saying there is never an increment for the us996?
Thank you for clarifying
Click to expand...
Click to collapse
Was just pointing out that through the 996 oreo release lg hasn't incremented arb on the 996
Sent from my LG-H910 using XDA Labs
Hi cnjax
It is a bit difficult to read everything n get a clear picture sometimes. I'm hoping you would clarify something
If TWRP is not installed and the phone is unlocked but not rooted which method could be used to install oreo 20f?
Would you be forced to install 10f (nougat) to root and install twrp first before moving on to oreo?
In this scenario I assumed nougat was on the phone originally and it seems the phone is locked from the fastboot info given...but let's say it gets unlocked
Is there a method to install oreo first instead of starting with nougat and version 10f? If there is that would be awesome
Thank you!
secondhand2 said:
Hi cnjax
It is a bit difficult to read everything n get a clear picture sometimes. I'm hoping you would clarify something
If TWRP is not installed and the phone is unlocked but not rooted which method could be used to install oreo 20f?
Would you be forced to install 10f (nougat) to root and install twrp first before moving on to oreo?
In this scenario I assumed nougat was on the phone originally and it seems the phone is locked from the fastboot info given...but let's say it gets unlocked
Is there a method to install oreo first instead of starting with nougat and version 10f? If there is that would be awesome
Thank you!
Click to expand...
Click to collapse
If his bootloader is locked he'll need to downgrade, root and unlock the bootloader with dirty santa, flash updated twrp, flash a rom and magisk
Sent from my LG-H910 using XDA Labs
Post #71 about dumping contents/partitions with lgup seems a good idea -
Then I would try fastboot oem unlock to see what happens but not sure if that can break the bootloader or not. I think you would be in a deeper hole if it went south on you. I'm not sure if doing fastboot oem unlock can be risky at this point
Related
Hello. Just got my a7 today and I am glad to say that I have Verizon and my phone is perfect. But I tried the unlock bootloader adb sideload that requires b20. It fails. Also trying the update from b18 to b20 didn't work either.
So am I able to root from b29? What should I do or where should I look for answers?
Thanks
canezila said:
Hello. Just got my a7 today and I am glad to say that I have Verizon and my phone is perfect. But I tried the unlock bootloader adb sideload that requires b20. It fails. Also trying the update from b18 to b20 didn't work either.
So am I able to root from b29? What should I do or where should I look for answers?
Thanks
Click to expand...
Click to collapse
http://forum.xda-developers.com/axon-7/how-to/guide-how-to-unlock-bootloader-stay-t3461165
And this work also with new B29? I read so many here and at the end i was totaly confused, some write B29 isnt rootable at this moment and new bootimage needed, some write yes... no really clear guide with B29.
tasar said:
And this work also with new B29? I read so many here and at the end i was totaly confused, some write B29 isnt rootable at this moment and new bootimage needed, some write yes... no really clear guide with B29.
Click to expand...
Click to collapse
A new bootimage is only needed if you want to root B29 without unlocking the bootloader.
Use tenfar's tool to flash only TWRP recovery, flash the modified fastboot I linked, fastboot oem unlock, flash SuperSU 2.65.
xtermmin said:
A new bootimage is only needed if you want to root B29 without unlocking the bootloader.
Use tenfar's tool to flash only TWRP recovery, flash the modified fastboot I linked, fastboot oem unlock, flash SuperSU 2.65.
Click to expand...
Click to collapse
I am still unclear regarding precise steps needed to unlock my bootloader. And ZTE took down the previous method request for improvement I think I read...
Is this what you mean?:
1. "Use tenfar's tool to flash only TWRP recovery"
http://forum.xda-developers.com/axon-7/development/wip-axon-7-root-bootloader-unlokced-t3441204
2. "flash the modified fastboot I linked"
http://forum.xda-developers.com/axon-7/how-to/guide-how-to-unlock-bootloader-stay-t3461165
Problem is I am stuck on 1. I installed the Quallcomm drivers and wwlan as instructed, however, my windows doesnt display any comm devices and nothing from Qualcomm. So I am unable to backup my phone onto my computer, which is priority no.1.
** clarification ... I feel more comfortable using linux but the tools are windows so I am dual booting into windows. I might be missing a simple step regarding my phone device manager....
canezila said:
I am still unclear regarding precise steps needed to unlock my bootloader. And ZTE took down the previous method request for improvement I think I read...
Is this what you mean?:
1. "Use tenfar's tool to flash only TWRP recovery"
http://forum.xda-developers.com/axon-7/development/wip-axon-7-root-bootloader-unlokced-t3441204
2. "flash the modified fastboot I linked"
http://forum.xda-developers.com/axon-7/how-to/guide-how-to-unlock-bootloader-stay-t3461165
Problem is I am stuck on 1. I installed the Quallcomm drivers and wwlan as instructed, however, my windows doesnt display any comm devices and nothing from Qualcomm. So I am unable to backup my phone onto my computer, which is priority no.1.
** clarification ... I feel more comfortable using linux but the tools are windows so I am dual booting into windows. I might be missing a simple step regarding my phone device manager....
Click to expand...
Click to collapse
Did you power off the phone and hold vol up + vol down and then plug in the usb ?
canezila said:
I am still unclear regarding precise steps needed to unlock my bootloader. And ZTE took down the previous method request for improvement I think I read...
Is this what you mean?:
1. "Use tenfar's tool to flash only TWRP recovery"
http://forum.xda-developers.com/axon-7/development/wip-axon-7-root-bootloader-unlokced-t3441204
2. "flash the modified fastboot I linked"
http://forum.xda-developers.com/axon-7/how-to/guide-how-to-unlock-bootloader-stay-t3461165
Problem is I am stuck on 1. I installed the Quallcomm drivers and wwlan as instructed, however, my windows doesnt display any comm devices and nothing from Qualcomm. So I am unable to backup my phone onto my computer, which is priority no.1.
** clarification ... I feel more comfortable using linux but the tools are windows so I am dual booting into windows. I might be missing a simple step regarding my phone device manager....
Click to expand...
Click to collapse
Your phone has to be in edl mode to see it as a comm on windows. adb reboot edl
I used the b27 to install twrp with axon7root.exe then used twrp unlock bootloader but couldn't fastboot on windows had to switch to linux.
Careful about rooting and unlocking bootloaders if you can't even follow really detailed instructions!
thjoca3 said:
Did you power off the phone and hold vol up + vol down and then plug in the usb ?
Click to expand...
Click to collapse
That is what I missed. I have used Motorola phones (N6, motox, droid maxx, x2, X) and just wasn't familiar with that combo.
I am now rooted, Unlocked and all is great! Thanks for your help.
Sent from my ZTE A2017U using XDA-Developers mobile app
c7j8d9 said:
Your phone has to be in edl mode to see it as a comm on windows. adb reboot edl
I used the b27 to install twrp with axon7root.exe then used twrp unlock bootloader but couldn't fastboot on windows had to switch to linux.
Click to expand...
Click to collapse
I finished on Ubuntu, too. Now I am excited to see what, if substratum works...
Sent from my ZTE A2017U using XDA-Developers mobile app
chanter100 said:
Careful about rooting and unlocking bootloaders if you can't even follow really detailed instructions!
Click to expand...
Click to collapse
Douche
Sent from my ZTE A2017U using XDA-Developers mobile app
canezila said:
Douche
Sent from my ZTE A2017U using XDA-Developers mobile app
Click to expand...
Click to collapse
Since we are name calling now, you DOO DOO head!!! lol
chanter100 said:
Since we are name calling now, you DOO DOO head!!! lol
Click to expand...
Click to collapse
It was said in fun, glad you took it that way. [emoji12]
Sent from my ZTE A2017U using XDA-Developers mobile app
canezila said:
That is what I missed. I have used Motorola phones (N6, motox, droid maxx, x2, X) and just wasn't familiar with that combo.
I am now rooted, Unlocked and all is great! Thanks for your help.
Sent from my ZTE A2017U using XDA-Developers mobile app
Click to expand...
Click to collapse
So, for those of us whonhave not yet taken "the plunge", do you mind detailing the exact steps that finally worked for you? These multiple threads have a variety of trials, errors & successes..TIA
I play pokemon go so do not want to root the phone.. unless there is a way to hide the root from the app.
Hello,
Guys I've been reading for hours (feels like I'm running in circles) lol
I just got the Axon 7 and I'm not able to figure out how to get it fully working with Verizon, And I'm not getting any help from ZTE or Verizon.
Can anyone point me in the right direction?
I'm to the point where I'm ready to send it back.
DJRobBlaze said:
Hello,
Guys I've been reading for hours (feels like I'm running in circles) lol
I just got the Axon 7 and I'm not able to figure out how to get it fully working with Verizon, And I'm not getting any help from ZTE or Verizon.
Can anyone point me in the right direction?
I'm to the point where I'm ready to send it back.
Click to expand...
Click to collapse
Stick your active Verizon SIM into Slot 1, turn on A7, enable Data Roaming on Slot 1, manually set APN (if desired), done.
chanter100 said:
I play pokemon go so do not want to root the phone.. unless there is a way to hide the root from the app.
Click to expand...
Click to collapse
Magisk Root = Systemless root enabling bootloader and system hide so safetynet api cannot view that information
Does it work? Probably, do I know? No. I am in the process of getting my B29 bootloader unlocked and rooted.
c7j8d9 said:
Your phone has to be in edl mode to see it as a comm on windows. adb reboot edl
I used the b27 to install twrp with axon7root.exe then used twrp unlock bootloader but couldn't fastboot on windows had to switch to linux.
Click to expand...
Click to collapse
You said you used B27 to install TWRP but, was your phone already upgraded to B29? That is the key of the OP.
Hey Everyone....So I just have a question about the HTC BOLT and how to root it
So I guess I am little confused as to how do I go about this in terms of rooting it
My phone must be unlocked through the htc dev site correct? If so then I am good with that step, I also have seen many posts on how to root it but I just need one general site or a way on how to do it...Last thing I want to do is screw this up and brick the phone from reading multiple posts...So any information would def help me...Currently I am on Nougat 7.0
Thanks
Jay
jortiz31877 said:
Hey Everyone....So I just have a question about the HTC BOLT and how to root it
So I guess I am little confused as to how do I go about this in terms of rooting it
My phone must be unlocked through the htc dev site correct? If so then I am good with that step, I also have seen many posts on how to root it but I just need one general site or a way on how to do it...Last thing I want to do is screw this up and brick the phone from reading multiple posts...So any information would def help me...Currently I am on Nougat 7.0
Thanks
Jay
Click to expand...
Click to collapse
you'll need to flash twrp from download mode, then boot into twrp & either flash SuperSU or Magisk v11.1
my preference is now Magisk, as it now has it's own root plus you can install magisk modules (mods or ROM) without breaking /system
Thanks for the information, So i went to the htc dev site to proceed on how to unlock bootload my phone and they mentioned about "fast boot' that is not a option that needs to be selected on my phone while in download mode ...So can i still unlock it with out that "fast boot " option?
jortiz31877 said:
Thanks for the information, So i went to the htc dev site to proceed on how to unlock bootload my phone and they mentioned about "fast boot' that is not a option that needs to be selected on my phone while in download mode ...So can i still unlock it with out that "fast boot " option?
Click to expand...
Click to collapse
you said u were good w/ that step so I didn't mention....fastboot is not an option in the menu, it's a tool...you need to use fastboot command to unlock bootloader & also to flash twrp
install this for fastboot: https://forum.xda-developers.com/showthread.php?t=2317790
Okay so I know the phone must be connected using the command terminals and to simplify this i would:
1- Use fastboot to get the phone unlocked using the code to unlock it then (NOT Choosing to flash a rom at all for my phone)
2- use use maglsk v11.1 or Super Su and follow the instructions while leaving the phone plugged into the PC
3- once done then go to the play store and update magisk manager
4 - Check any rooted apk via the play store to verify if your phone is rooted
If there is something that i am missing please let me know. Much appreciations so far getting me to this point.
jortiz31877 said:
Okay so I know the phone must be connected using the command terminals and to simplify this i would:
1- Use fastboot to get the phone unlocked using the code to unlock it then (NOT Choosing to flash a rom at all for my phone)
2- use use maglsk v11.1 or Super Su and follow the instructions while leaving the phone plugged into the PC
3- once done then go to the play store and update magisk manager
4 - Check any rooted apk via the play store to verify if your phone is rooted
If there is something that i am missing please let me know. Much appreciations so far getting me to this point.
Click to expand...
Click to collapse
after unlocking bootloader, you will need to flash twrp (fastboot flash recovery nameofrecovery.img), the twrp.img needs to be in you sdktools folder on pc, after flashing, then boot into twrp...from download mode, choose reboot to bootloader, then reboot to recovery. once in twrp, you should probably leave /system read only, then copy either supersu or magisk to sd card, and choose install from main menu of twrp....once done, boot device. if using magisk, update from store
u only need to connect to pc when entering fastboot cmds
will this root work with boost mobile HTC bolt or is there a root that will work for this phone
Chrism1971 said:
will this root work with boost mobile HTC bolt or is there a root that will work for this phone
Click to expand...
Click to collapse
Either should work fine
Sent from my unknown using XDA Labs
Question
OMJ said:
you'll need to flash twrp from download mode, then boot into twrp & either flash SuperSU or Magisk v11.1
my preference is now Magisk, as it now has it's own root plus you can install magisk modules (mods or ROM) without breaking /system
Click to expand...
Click to collapse
Look I know you know what your doing I just barley got into rooting my android devices so my question is will this Brick my phone because last time I tried kingroot and it lock everything. I am scared to lose my warranty on my phone and want to know it will work. I had to take my phone to a sprint tech store last time to get it fixed so I was wondering if you could make a video of how to do it. Thanks for your time and effort Sam.
craftingatic said:
I am scared to lose my warranty on my phone.
Click to expand...
Click to collapse
You will lost your warranty anyway, if you open the bootloader via HTCdev.
craftingatic said:
Look I know you know what your doing I just barley got into rooting my android devices so my question is will this Brick my phone because last time I tried kingroot and it lock everything. I am scared to lose my warranty on my phone and want to know it will work. I had to take my phone to a sprint tech store last time to get it fixed so I was wondering if you could make a video of how to do it. Thanks for your time and effort Sam.
Click to expand...
Click to collapse
1st...as far as warranty goes, HTC is pretty good about repair even if you unlock the bootloader. So if you unlock bootloader, then flash TWRP & root, I always recommend restoring to stock before having any warranty work done.
sorry I don't do videos, but I'm always willing to help out...it's really not very difficult, the risk of a brick is very low if u just follow the instructions...if you're just looking for root, here are the basic steps:
1. unlock bootloader via htcdev.com (you'll have to create a account)
-when selecting the device, choose "all other supported models"
-you'll need to install drivers to pc to communicate to phone, see "required resources" to the left of step 1
-you don't need to install SDK but you will need the fastboot binary in step 4
-at step 5 make sure you are communicating w/ the device by using the cmd fastboot devices, it should list your device in the output
-follow the remaining steps to unlock
2. once bootloader is unlocked, boot back into download mode to flash twrp (custom recovery)
-download latest twrp from here: https://dl.twrp.me/aca/ copy the twrp.img to the folder that has the fastboot binary
-use this cmd to flash twrp: fastboot flash recovery twrp-3.1.1-0-aca.img
-it flashes pretty quick, then boot to bootloader, then boot to recovery
3. 1st time u boot twrp it will ask if u want to keep /system read only, if u plan to stay stock w/ only root, then keep read only
-I always recommend to make a system & boot image backup just in case
-flash MagiskSU or SuperSU, I prefer Magisk
the Sprint ROM has a lot of bloat, if you're interested, I have a ROM posted that cleans all that junk up along with a lot of useful mods, with a stock look
OMJ said:
1st...as far as warranty goes, HTC is pretty good about repair even if you unlock the bootloader. So if you unlock bootloader, then flash TWRP & root, I always recommend restoring to stock before having any warranty work done.
sorry I don't do videos, but I'm always willing to help out...it's really not very difficult, the risk of a brick is very low if u just follow the instructions...if you're just looking for root, here are the basic steps:
1. unlock bootloader via htcdev.com (you'll have to create a account)
-when selecting the device, choose "all other supported models"
-you'll need to install drivers to pc to communicate to phone, see "required resources" to the left of step 1
-you don't need to install SDK but you will need the fastboot binary in step 4
-at step 5 make sure you are communicating w/ the device by using the cmd fastboot devices, it should list your device in the output
-follow the remaining steps to unlock
2. once bootloader is unlocked, boot back into download mode to flash twrp (custom recovery)
-download latest twrp from here: https://dl.twrp.me/aca/ copy the twrp.img to the folder that has the fastboot binary
-use this cmd to flash twrp: fastboot flash recovery twrp-3.1.1-0-aca.img
-it flashes pretty quick, then boot to bootloader, then boot to recovery
3. 1st time u boot twrp it will ask if u want to keep /system read only, if u plan to stay stock w/ only root, then keep read only
-I always recommend to make a system & boot image backup just in case
-flash MagiskSU or SuperSU, I prefer Magisk
the Sprint ROM has a lot of bloat, if you're interested, I have a ROM posted that cleans all that junk up along with a lot of useful mods, with a stock look
Click to expand...
Click to collapse
Do u have to rename the twrp to tarp.img? I flashed the latest tarp the direction I saw said rename twrp so did I do it wrong cause I can't boot into twrp at all I get HTC and some red text then boots all the way up
roadkill42 said:
Do u have to rename the twrp to tarp.img? I flashed the latest tarp the direction I saw said rename twrp so did I do it wrong cause I can't boot into twrp at all I get HTC and some red text then boots all the way up
Click to expand...
Click to collapse
twrp can be named anything u want, your fastboot flash cmd just has to match...when u try to boot into recovery & get a red triangle, that's stock recovery, so yeah it didn't flash then
OMJ said:
twrp can be named anything u want, your fastboot flash cmd just has to match...when u try to boot into recovery & get a red triangle, that's stock recovery, so yeah it didn't flash then
Click to expand...
Click to collapse
OK did it twice it said it did with no errors so just keep doing it till it dose? Or is there another way?
---------- Post added at 04:35 PM ---------- Previous post was at 04:34 PM ----------
roadkill42 said:
OK did it twice it said it did with no errors so just keep doing it till it dose? Or is there another way?
Click to expand...
Click to collapse
No triangle just HTC in gray then flashes red letters under it
roadkill42 said:
OK did it twice it said it did with no errors so just keep doing it till it dose? Or is there another way?
---------- Post added at 04:35 PM ---------- Previous post was at 04:34 PM ----------
No triangle just HTC in gray then flashes red letters under it
Click to expand...
Click to collapse
you should only need to flash twrp once....
post your cmds so I can see what you're doing....make sure you're in download mode
OMJ said:
you should only need to flash twrp once....
post your cmds so I can see what you're doing....make sure you're in download mode
Click to expand...
Click to collapse
OK I was in download mode I c what I can do on the rest thanks probly later today or tomorrow
roadkill42 said:
OK I was in download mode I c what I can do on the rest thanks probly later today or tomorrow
Click to expand...
Click to collapse
Is there a complete in full detail way of flashing tarp in download load mode?
roadkill42 said:
Is there a complete in full detail way of flashing tarp in download load mode?
Click to expand...
Click to collapse
full detail? it's 1 cmd.... fastboot flash recovery twrp.img
https://twrp.me/htc/htcbolt10evo.html
OMJ said:
full detail? it's 1 cmd.... fastboot flash recovery twrp.img
https://twrp.me/htc/htcbolt10evo.html
Click to expand...
Click to collapse
OK thanks there is a lot out there I might did wrong one I try this way and let u know thanks again is there a special key combo to get into twrp after flashing ?
Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.
C:\Program Files\Minimal ADB and Fastboot>adb devices
List of devices attached
HT7120403511 device
when i try to reboot to recovery under the htc says this build for devloping purpose only im on n with no updates installed this phone came to me like this bran new
C:\Program Files\Minimal ADB and Fastboot>fastboot flash recovery twrp.img
sending 'recovery' (8156 KB)...
OKAY [ 1.782s]
writing 'recovery'...
(bootloader) HOSD CL#821651
(bootloader) [email protected]
(bootloader) [email protected]%
(bootloader) Update partition OK
(bootloader) [email protected]
OKAY [ 2.311s]
finished. total time: 4.096s
C:\Program Files\Minimal ADB and Fastboot>adb reboot
error: device not found
C:\Program Files\Minimal ADB and Fastboot>fastboot reboot
rebooting...
finished. total time: 0.004s
C:\Program Files\Minimal ADB and Fastboot> I'm on 7.0
I tried to root my Moto G4, and oh boy that was a big mistake. After successfully installing TWRP, I went to install SuperSu. Now, my phone can do one of two things: be at the bootloader menu or boot up TWRP. And so to fix this I downloaded the official Motorola imgs for my device and was planning on flashing them to my Moto G4. But now, in the bootloader adb won't recognize my device. In TWRP, it's recognized, but I cannot run any fastboot commands, so I can't flash the stock image. Any idea how to fix this monstrosity of a situation? I just want to have my phone back; I don't even care if it gets rooted anymore...
bootloader = fastboot, Adb has nothing to do there. You flashed TWRP and didnt you make a backup after? Oh god big mistake
Kyle.Donoghue said:
I tried to root my Moto G4, and oh boy that was a big mistake. After successfully installing TWRP, I went to install SuperSu. Now, my phone can do one of two things: be at the bootloader menu or boot up TWRP. And so to fix this I downloaded the official Motorola imgs for my device and was planning on flashing them to my Moto G4. But now, in the bootloader adb won't recognize my device. In TWRP, it's recognized, but I cannot run any fastboot commands, so I can't flash the stock image. Any idea how to fix this monstrosity of a situation? I just want to have my phone back; I don't even care if it gets rooted anymore...
Click to expand...
Click to collapse
First of all - don't panic and do something to make things worse. The fact you can get to TWRP is very encouraging. While in the bootloader, and with your phone connected to your PC open a command line window in your directory that contains the fastboot and adb files. type the command "fastboot devices" and see if your phone shows up. If it does then you can flash the stock image for your phone. It can be found on various posts in these forums.
Did you root your phone following the proper procedure found here? - https://forum.xda-developers.com/moto-g4/how-to/how-to-root-g4-fix-bootable-attempted-t3417592 I am guessing you didn't since you soft bricked your phone.
---------- Post added at 05:20 PM ---------- Previous post was at 05:11 PM ----------
lerg96 said:
bootloader = fastboot, Adb has nothing to do there. You flashed TWRP and didnt you make a backup after? Oh god big mistake
Click to expand...
Click to collapse
Seriously? This is all you have to offer??? Not much help dude!
pastorbob62 said:
Seriously? This is all you have to offer??? Not much help dude!
Click to expand...
Click to collapse
I just wanted to make difference between both :laugh::laugh:
But he dont give us enough information
Root method? Android OS? And bro bootloader with adb? theres two things I guess he did, he confused the terms and instead of typing 'fastboot' he wrote 'adb' OR, he really tried to flash a .zip or img with adb inside the bootloader
PD: come, dont get mad at me. Give me a hug
Kyle.Donoghue said:
I tried to root my Moto G4, and oh boy that was a big mistake. After successfully installing TWRP, I went to install SuperSu. Now, my phone can do one of two things: be at the bootloader menu or boot up TWRP. And so to fix this I downloaded the official Motorola imgs for my device and was planning on flashing them to my Moto G4. But now, in the bootloader adb won't recognize my device. In TWRP, it's recognized, but I cannot run any fastboot commands, so I can't flash the stock image. Any idea how to fix this monstrosity of a situation? I just want to have my phone back; I don't even care if it gets rooted anymore...
Click to expand...
Click to collapse
You forgot to flash ElementalX, dummy. Maybe if you read the instructions you wouldn't have issues.
Since you have TWRP installed I recommend using one of the optimized stock ROM builds over on the G4 Plus forum (everything for the G4 Plus can be flashed on the G4).
If not, then you need to know that fastboot =/ adb- you need fastboot installed. If you're on Windows, Minimal ADB and fastboot is the way to go. If you're on a debian based distro, run "sudo apt-get install fastboot". You also need Motorola Device Manager drivers installed.
UPDATE:
I successfully unlocked the bootloader, flashed twrp, rooted, updated kernel and roms, tweaking gpu cpu for performance in pubg etc, greenify, flashify, power nap everything.
xposed framework take you in bootloop for this device.
now i am on kernel mk2000, superv20 rom, h91810u, 7 nougat.
if in future anyone feels any problem i am always here.
remember: linus is your friend for this device, and windows 10 suck.
and
sudo $(which fastboot) did miracles for me....
old post:
Hello everyone.
i am new here and i am sorry in advance if i did something wrong. i will come directly to the point.
model number: LG V20 T-MOBILE VERSION, H91820H, NON USA, Currently on oreo android 8.
we are not talking about any kind of roms kernels roots or anything here. just a simple question. " can this model's boot loader be unlocked ? like ever ? or not "
cause i have tried everything, when i say everything i mean everything. followed several posts on internet videos on you tube posts on XDA, tried using multiple PCs, multiple data cables, multiple drivers but for some reason i don't know what, this model's boot loader cannot be unlocked.
THE ERROR:
<WAITING FOR DEVICE> till eternity.
what i have done till now ?
1. lg drivers installed.
2. adb drivers installed with adb fastboot files.
3. updating legacy android adb interface driver, done.
4. went in to boot loader then connected the data cable and updated driver, done.
5. usb debugging oem unlock options activated, done.
6. restarted pc multiple times to update drivers, done.
we all know all it takes is 3 easy commands to unlock bootlaoder
adb reboot bootloader
fastboot oem unlock
fastboot reboot
but in my case i always stuck at 2nd command. waiting for device is shown and nothing happens.
then i ran command, adb devices>> it shows
List of devices attached
adb server is out of date. killing...
* daemon started successfully *
LGH9182bfc6bdc device
next i put the command, fastboot devices and nothing is shown i just go to the next line... c:\adb>
so this is for sure that my device is not connected to the fastboot.
now my only question is, can this device bootloader unlock or not ? so that i stop pushing my limits.
any help will be appreciated.
regards.
X_BlackBurn_X said:
Hello everyone.
i am new here and i am sorry in advance if i did something wrong. i will come directly to the point.
model number: LG V20 T-MOBILE VERSION, H91820H, NON USA, Currently on oreo android 8.
we are not talking about any kind of roms kernels roots or anything here. just a simple question. " can this model's boot loader be unlocked ? like ever ? or not "
cause i have tried everything, when i say everything i mean everything. followed several posts on internet videos on you tube posts on XDA, tried using multiple PCs, multiple data cables, multiple drivers but for some reason i don't know what, this model's boot loader cannot be unlocked.
THE ERROR:
<WAITING FOR DEVICE> till eternity.
what i have done till now ?
1. lg drivers installed.
2. adb drivers installed with adb fastboot files.
3. updating legacy android adb interface driver, done.
4. went in to boot loader then connected the data cable and updated driver, done.
5. usb debugging oem unlock options activated, done.
6. restarted pc multiple times to update drivers, done.
we all know all it takes is 3 easy commands to unlock bootlaoder
adb reboot bootloader
fastboot oem unlock
fastboot reboot
but in my case i always stuck at 2nd command. waiting for device is shown and nothing happens.
then i ran command, adb devices>> it shows
List of devices attached
adb server is out of date. killing...
* daemon started successfully *
LGH9182bfc6bdc device
next i put the command, fastboot devices and nothing is shown i just go to the next line... c:\adb>
so this is for sure that my device is not connected to the fastboot.
now my only question is, can this device bootloader unlock or not ? so that i stop pushing my limits.
any help will be appreciated.
regards.
Click to expand...
Click to collapse
Are you following this > https://r.tapatalk.com/shareLink/to...3&share_fid=3793&share_type=t&link_source=app
[ROOT] - lafsploit - H918 (any version up to and including 20h) - now n00b friendly
Sent from my HD1907 using Tapatalk
Thanks for thanks for replying on a short notice I have seen this post there is no reason to follow any of the post because the very first stage is to unlock the bootloader but as I cannot unlock the bootloader there is no point in following any of the posts my problem is what ever way I follow I am unable to to unlock the bootloader in fact what I can see is whenever I try to type in command ADB devices IC e my phone but when I type fastboot devices nothing happens it's like my phone is not in the fastboot that is why why I cannot unlock the bootloader I have tried every possible step mentioned on the internet and on various forums I also go through some videos on YouTube those guys follow the same steps and unlock their bootloader but my device cannot unlock for some reason so if you lovely people can help me out and figure out what exactly I am doing wrong as I have followed every step of unlocking the bootloader I've installed all the drivers I have updated all the drivers I have done exactly e all three steps which has been asked but still no luck thank you
clsA said:
Are you following this > https://r.tapatalk.com/shareLink/to...3&share_fid=3793&share_type=t&link_source=app
[ROOT] - lafsploit - H918 (any version up to and including 20h) - now n00b friendly
Sent from my HD1907 using Tapatalk
Click to expand...
Click to collapse
To be very precise after following the first step while unlocking the bootloader in the second step when we type fast boot devices it should show some hexadecimal numbers and it should confirm us that our device is in the fastboot mode but in my case whenever I type this command nothing happens that means my device is not recognised to go in the bootloader this is the main problem there is no point in following any of the posts if you cannot complete the very first stage of unlocking your bootloader if you can figure out what exactly is the problem I will be thankful to you because I have followed every step possible I've updated every ADB drivers LG drivers but nothing is helping out as even before starting the procedure of unlocking the bootloader my device is not going in the fast boot also I noticed one thing when I try to go inside the bootloader screen before that in my device manager it is shown as composit device but after that I think it gets disconnected fastboot oem unlock cannot work as it gives a message of waiting for the device after going are using the command ADB reboot bootloader so my problem is the command fastboot oem unlock is pretty useless as it waits for the device and it's stuck there forever please help me out if you can I will be thankful to you regards
X_BlackBurn_X said:
To be very precise after following the first step while unlocking the bootloader in the second step when we type fast boot devices it should show some hexadecimal numbers and it should confirm us that our device is in the fastboot mode but in my case whenever I type this command nothing happens that means my device is not recognised to go in the bootloader this is the main problem there is no point in following any of the posts if you cannot complete the very first stage of unlocking your bootloader if you can figure out what exactly is the problem I will be thankful to you because I have followed every step possible I've updated every ADB drivers LG drivers but nothing is helping out as even before starting the procedure of unlocking the bootloader my device is not going in the fast boot also I noticed one thing when I try to go inside the bootloader screen before that in my device manager it is shown as composit device but after that I think it gets disconnected fastboot oem unlock cannot work as it gives a message of waiting for the device after going are using the command ADB reboot bootloader so my problem is the command fastboot oem unlock is pretty useless as it waits for the device and it's stuck there forever please help me out if you can I will be thankful to you regards
Click to expand...
Click to collapse
Did you downgrade to software version H91810P? Because that should be the first thing you have to do to get everything else to work afterwards.
C D said:
Did you downgrade to software version H91810P? Because that should be the first thing you have to do to get everything else to work afterwards.
Click to expand...
Click to collapse
Thanks for the reply.
Can you please clear me one thing. To downgrade from h91820h to h91810p you need to unlock bootloader if i am not wrong. And in that case we will be back to square 1.
Its not about installing custom rom kernel recovery root or anything. Its only about unlocking the bootloader which i cannot do.
I hope you understand my pain.
I just want to unlock my bootloader thats it.
It used only 3 commands.
1. Adb devices - shows my device.
2. Fastboot devices - no fastboot device found.
This is the problem. When you cannot find any fastboot device even updating driver by going inside the bootloader the entire mission gets failed.
I cant find any solution for this. I dont know for what reason my device cannot be listed in fastboot mode.
X_BlackBurn_X said:
Thanks for the reply.
Can you please clear me one thing. To downgrade from h91820h to h91810p you need to unlock bootloader if i am not wrong. And in that case we will be back to square 1.
Its not about installing custom rom kernel recovery root or anything. Its only about unlocking the bootloader which i cannot do.
I hope you understand my pain.
I just want to unlock my bootloader thats it.
It used only 3 commands.
1. Adb devices - shows my device.
2. Fastboot devices - no fastboot device found.
This is the problem. When you cannot find any fastboot device even updating driver by going inside the bootloader the entire mission gets failed.
I cant find any solution for this. I dont know for what reason my device cannot be listed in fastboot mode.
Click to expand...
Click to collapse
fastboot doesn't work when the phone is booted up
adb reboot bootloader
followed by fastboot devices
Note: flashing the 10p kdz does not require the bootloader be unlocked
it requires you have patched LGUP
Example:
D:\fastboot>adb devices
List of devices attached
LGUS99740047103 device
D:\fastboot>adb reboot bootloader
D:\fastboot>fastboot oem device-id
...
(bootloader) ----------------------------------
(bootloader) Device-ID
(bootloader) F3D7DE171C893D55082EAE38270125EF
(bootloader) DA7CB3E78B1DB5709A2CA8********
(bootloader) ----------------------------------
OKAY [ 0.060s]
finished. total time: 0.060s
D:\fastboot>fastboot reboot
rebooting...
finished. total time: 0.008s
D:\fastboot>adb reboot bootloader
D:\fastboot>fastboot getvar unlocked
unlocked: no
finished. total time: 0.003s
Click to expand...
Click to collapse
X_BlackBurn_X said:
Thanks for the reply.
Can you please clear me one thing. To downgrade from h91820h to h91810p you need to unlock bootloader if i am not wrong. And in that case we will be back to square 1.
Its not about installing custom rom kernel recovery root or anything. Its only about unlocking the bootloader which i cannot do.
I hope you understand my pain.
I just want to unlock my bootloader thats it.
It used only 3 commands.
1. Adb devices - shows my device.
2. Fastboot devices - no fastboot device found.
This is the problem. When you cannot find any fastboot device even updating driver by going inside the bootloader the entire mission gets failed.
I cant find any solution for this. I dont know for what reason my device cannot be listed in fastboot mode.
Click to expand...
Click to collapse
As clsA said, flashing firmware does not require an unlocked bootloader.
Look at parts 1 and 2 of the other step by step guide here:
https://forum.xda-developers.com/v20/how-to/step-step-guide-lg-v20-h918-unlocking-t3808258
clsA said:
fastboot doesn't work when the phone is booted up
adb reboot bootloader
followed by fastboot devices
Note: flashing the 10p kdz does not require the bootloader be unlocked
it requires you have patched LGUP
Example:
Click to expand...
Click to collapse
Thanks for the solution. May be this is it. All the time i have been doing it wrong.
Solution : flashing the 10p kdz does not require the bootloader be unlocked
it requires you have patched LGUP.
I will downgrade from 20h to 10p now and will give you feedback on this soon. Thanks a ton for showing a noob like me the right direction to work.
X_BlackBurn_X said:
Thanks for the solution. May be this is it. All the time i have been doing it wrong.
Solution : flashing the 10p kdz does not require the bootloader be unlocked
it requires you have patched LGUP.
I will downgrade from 20h to 10p now and will give you feedback on this soon. Thanks a ton for showing a noob like me the right direction to work.
Click to expand...
Click to collapse
No problem the link @C D posted above seems to have all the working links for you
clsA said:
No problem the link @C D posted above seems to have all the working links for you
Click to expand...
Click to collapse
well we have a new problem now.
lgup error 0x2bc invalid command response code = 0x80000202 at 4 percent while flashing.
did i just brick my phone now ? as it says dont unplug until you are done and we have been getting same error again and again.
used the provided kdz file flashing as an upgrade.
ok so the new problem is... may be i was trying to flash h91810p naugaut on to a oreo h91820h
and if i am not wrong at this stage i messed up pretty bad my phone is stuck in donwload mode wont boot up and i need to flash back 20h again to get out of this mess. can anyone hlp me ....
i just wanna know h91810p downgrading from 91820h is possible or not ? cause one is naugaut and one is oreo.
UPDATE:
i was flashing wrong h91810p thats why it was showing error. on another website i got the file compatible to my phone t mobile version and flash was successful.
now i am on h91810p software version andriod 7.
problem UPDATE:
i still cant unlock bootloader. same problem as before downgrading from h91820h.
adb devices shows device.
adb reboot bootloader
fastboot devices gives no result.
phone cannot enter in fastboot mode. the problem still remains the same even after changing the software.
kindly help guys
clsA said:
fastboot doesn't work when the phone is booted up
adb reboot bootloader
followed by fastboot devices
Note: flashing the 10p kdz does not require the bootloader be unlocked
it requires you have patched LGUP
Example:
Click to expand...
Click to collapse
hello clsA
"
D:\fastboot>adb devices
List of devices attached
LGUS99740047103 device
D:\fastboot>adb reboot bootloader
D:\fastboot>fastboot oem device-id
after this it only says waitng for device"
now i am on h91810p as i was instructed. can you please help.
its all happening the same way it was happening when was on h91820h.
fastboot devices cannot be found.
once it reboots in bootloader then it should detect a fastboot device but it doesnot and adb is also lost there.
kindly help.
NEW UPDATE:
my lg v20 now on software h91810p is actually a T MOBILE version. and when i researched more about it i found out T MOBILE deliberately locks the boot loader of many devices and its unlockable.
possible work around can be if the software version installed on your phone can some how be an international version of your ROM, then only you can unlock the bootloader else none of your commands will work. now i am trying to flash this phone using an international ROM version if i succeed i will update. but according to my knowledge flashing other roms other than t mobile ones will definitely give errors in LGUP.
X_BlackBurn_X said:
NEW UPDATE:
my lg v20 now on software h91810p is actually a T MOBILE version. and when i researched more about it i found out T MOBILE deliberately locks the boot loader of many devices and its unlockable.
possible work around can be if the software version installed on your phone can some how be an international version of your ROM, then only you can unlock the bootloader else none of your commands will work. now i am trying to flash this phone using an international ROM version if i succeed i will update. but according to my knowledge flashing other roms other than t mobile ones will definitely give errors in LGUP.
Click to expand...
Click to collapse
Do not flash another model's firmware onto the H918! Doing so will permanently brick your phone. The H918 in particular is incompatible with all other variants' software. Also, flashing H918 firmware onto any other model will also brick that phone.
C D said:
Do not flash another model's firmware onto the H918! Doing so will permanently brick your phone. The H918 in particular is incompatible with all other variants' software. Also, flashing H918 firmware onto any other model will also brick that phone.
Click to expand...
Click to collapse
hello
thanks for the reply.
i know we cannot flash any other phones firmware on to this model.
i was thinking of flashing specifically lg v20 h91810p international stock firmware, one is t mobile and one is international stock rom of same model.
cause t mobile is not allowing me to unlock the bootloader but an international stock rom will.
i have seen people doing on t mobile on youtube videos i dont know how they are doing it.
my problem is :
" as in message sent to various senior on this topic"
LG V20 H91810P, T MOBILE BOOTLOADER CANNOT BE UNLOCKED
HELLO
can you please help me out on a quest to unlock my bootloader of lg v20 h91810p. i have downgraded from h91820h to h91810p and still all the adb commands fail to make my phone go in to fastboot mode. i just cannot enter in fastboot mode,
adb devices shows my device
|but fastboot devices in bootloader mode doesnot show my device at all.
updated all the drivers used multiple pcs usb ports but no luck at all.,
what am i possibly doing wrong can you please help me out? i will be thankful to you.
on a side note i think t mobile has lockedd my bootloader so that i canoot unlock it,
regards
X_BlackBurn_X said:
hello
thanks for the reply.
i know we cannot flash any other phones firmware on to this model.
i was thinking of flashing specifically lg v20 h91810p international stock firmware, one is t mobile and one is international stock rom of same model.
cause t mobile is not allowing me to unlock the bootloader but an international stock rom will.
i have seen people doing on t mobile on youtube videos i dont know how they are doing it.
my problem is :
" as in message sent to various senior on this topic"
LG V20 H91810P, T MOBILE BOOTLOADER CANNOT BE UNLOCKED
HELLO
can you please help me out on a quest to unlock my bootloader of lg v20 h91810p. i have downgraded from h91820h to h91810p and still all the adb commands fail to make my phone go in to fastboot mode. i just cannot enter in fastboot mode,
adb devices shows my device
|but fastboot devices in bootloader mode doesnot show my device at all.
updated all the drivers used multiple pcs usb ports but no luck at all.,
what am i possibly doing wrong can you please help me out? i will be thankful to you.
on a side note i think t mobile has lockedd my bootloader so that i canoot unlock it,
regards
Click to expand...
Click to collapse
Did you make the Linux USB boot stick
Are you following the guide at all?
PART 3: CREATING A BOOTABLE LINUX USB USING FWUL
DOWNLOAD FWUL_v2.7_x86_64_15GB.zip FROM THE LINK BELOW AND EXTRACT THE IMAGE FILE SOMEWHERE IN YOUR PC.
https://androidfilehost.com/?w=files&flid=214529
DOWNLOAD RUFUS FROM BELOW AND INSTALL
https://rufus.akeo.ie/
INSERT A PEN DRIVE IN YOUR PC AND RUN RUFUS.
INSIDE RUFUS SELECT THE IMAGE FILE AND SELECT START (AFTER SELECTING START SELECT DD MODE IN THE DIALOGUE BOX) TO CREATE A BOOTABLE PEN DRIVE (WARNING: THIS WOULD FORMAT YOUR PEN DRIVE)
NOW YOU SHOULD BOOT YOUR PC FROM THE BOOTABLE USB STICK WHICH YOU HAVE JUST CREATED
THIS WOULD MAKE YOUR PC RUN LINUX OS
TYPE PASSWORD AS linux AND ENTER
Sent from my HD1907 using Tapatalk
clsA said:
Did you make the Linux USB boot stick
Are you following the guide at all?
PART 3: CREATING A BOOTABLE LINUX USB USING FWUL
DOWNLOAD FWUL_v2.7_x86_64_15GB.zip FROM THE LINK BELOW AND EXTRACT THE IMAGE FILE SOMEWHERE IN YOUR PC.
https://androidfilehost.com/?w=files&flid=214529
DOWNLOAD RUFUS FROM BELOW AND INSTALL
https://rufus.akeo.ie/
INSERT A PEN DRIVE IN YOUR PC AND RUN RUFUS.
INSIDE RUFUS SELECT THE IMAGE FILE AND SELECT START (AFTER SELECTING START SELECT DD MODE IN THE DIALOGUE BOX) TO CREATE A BOOTABLE PEN DRIVE (WARNING: THIS WOULD FORMAT YOUR PEN DRIVE)
NOW YOU SHOULD BOOT YOUR PC FROM THE BOOTABLE USB STICK WHICH YOU HAVE JUST CREATED
THIS WOULD MAKE YOUR PC RUN LINUX OS
TYPE PASSWORD AS linux AND ENTER
Sent from my HD1907 using Tapatalk
Click to expand...
Click to collapse
thanks again for the showing me the right direction. i was talking about unlocking the bootloader in step 1.
i will go through your links and try to study this.
just one more question.
does this method unlocks the bootloader ?
if yes please reply yes i will be thankful to you.
i will follow this step now.
regards
X_BlackBurn_X said:
hello clsA
"
D:\fastboot>adb devices
List of devices attached
LGUS99740047103 device
D:\fastboot>adb reboot bootloader
D:\fastboot>fastboot oem device-id
after this it only says waitng for device"
now i am on h91810p as i was instructed. can you please help.
its all happening the same way it was happening when was on h91820h.
fastboot devices cannot be found.
once it reboots in bootloader then it should detect a fastboot device but it doesnot and adb is also lost there.
kindly help.
Click to expand...
Click to collapse
Why does adb show your device as a 997 which is the Sprint variant
Sent from my LG-H910 using XDA Labs
Hey everyone,
I've been looking for options to Install a custom Rom or root since I bought the Tablet several month ago. It seems like there are some options for the Full Hd Version, but I have a hard time finding anything useful for the 125FU. Are there any recommendations like compatible GSI roms or TWRP/magisk?
Thanks in advance for your help!
You should just be able to install matiek form my understanding
I need some information, too. Bootloader unlock is different. Device doesn't respond to bootloader commands with Minimal ADB Fastboot 1.4.3.
holmesmalone said:
I need some information, too. Bootloader unlock is different. Device doesn't respond to bootloader commands with Minimal ADB Fastboot 1.4.3.
Click to expand...
Click to collapse
I just got an tb125fu
Bootloader unlock was no problem, maybe it works for you now with the latest versions?
art99 said:
I just got an tb125fu
Bootloader unlock was no problem, maybe it works for you now with the latest versions?
Click to expand...
Click to collapse
The issue I had, and resolved, was the lack of the latest fastboot drivers. Gained root with Magisk successfully.
holmesmalone said:
The issue I had, and resolved, was the lack of the latest fastboot drivers. Gained root with Magisk successfully.
Click to expand...
Click to collapse
I installed corvus os gsi on it. i have no custom recovery.
peteonu said:
I installed corvus os gsi on it. i have no custom recovery.
Click to expand...
Click to collapse
TWRP is convenient, but not absolutely necessary. Would like a Lineage rom though.
holmesmalone said:
TWRP is convenient, but not absolutely necessary. Would like a Lineage rom though.
Click to expand...
Click to collapse
Agreed. I've been looking into compiling TWRP myself but this is all new to me. The only device with TWRP with this chipset is the Redmi 9. I've compared both boot.img's and they are both setup differently. If I had more knowledge ont he subject I could easily achieve this I believe.
If I have time I'll compare Gen 2 vs Gen 3 boot.img's, that may help understand the folder and file structure better.
holmesmalone said:
The issue I had, and resolved, was the lack of the latest fastboot drivers. Gained root with Magisk successfully.
Click to expand...
Click to collapse
What process did you use with magisk to gain root after bootloader unlock? was it as simple as installing magisk manager and flashing root through the manager?
Thanks
el7145 said:
What process did you use with magisk to gain root after bootloader unlock? was it as simple as installing magisk manager and flashing root through the manager?
Thanks
Click to expand...
Click to collapse
The same process worked for me.
holmesmalone said:
The same process worked for me.
Click to expand...
Click to collapse
How did you obtain the boot.img to patch??? I cant find the stock firmware anywhere, and im not clear on pulling the stock boot.img (getting permission denied errors when attempting via adb)
el7145 said:
How did you obtain the boot.img to patch??? I cant find the stock firmware anywhere, and im not clear on pulling the stock boot.img (getting permission denied errors when attempting via adb)
Click to expand...
Click to collapse
Select and download your preferred rom. Then unzip the rom and in the unzipped folder select the boot.img file and use it.
With some devices and roms, under some circumstances, the vbmeta.img file can and should be used. If I can recall correctly, Magisk will specify.
holmesmalone said:
Select and download your preferred rom. Then unzip the rom and in the unzipped folder select the boot.img file and use it.
With some devices and roms, under some circumstances, the vbmeta.img file can and should be used. If I can recall correctly, Magisk will specify.
Click to expand...
Click to collapse
ok, so ur just pulling the boot img from one of the GSI roms...im just trying to pull the stock boot img...do you happen to know where one can download the stock firmware for this device, this is my 1st lenovo tablet
el7145 said:
ok, so ur just pulling the boot img from one of the GSI roms...im just trying to pull the stock boot img...do you happen to know where one can download the stock firmware for this device, this is my 1st lenovo tablet
Click to expand...
Click to collapse
LMSA. https://pcsupport.lenovo.com/us/en/downloads/ds101291-rescue-and-smart-assistant-lmsa
Use this tool. Install and explore the file and folder structure it creates. Interrupt the process before it flashes your tablet for it will erase the files you need from your computer if you don't. Use trial and error here.
Since the original question was about root, Ill keep this going
I was able to download the most recent ROM from Lenovo rescue which was super simple, it downloads the ROM first and wont start the flash till you click the button. I did retrieve the stock boot.img, patched it, and flashed it, rebooted and had root. Heres where the many hours of fun started...I realized my wifi wasnt working (good sign something was messed up during flash). I realize the ROM downloaded from the Lenovo Rescue was newer then my old ROM. So I had flashed the newer boot.img over the old ROM (not good). I went back to Lenovo rescue to actually make use of the rescue and flash a full ROM. After completion I became stuck in fastboot mode. I could boot to recovery but not system and every restart or shutdown and restart would go straight to fastboot.
I did try to manually flash the ROM using what i thought was the right files and order (using flashinfo.txt as the order and MT6768_Android_scatter.txt for the partition names for each image). Everything flashed successfully, but upon reboot I was still stuck in fastboot mode. I tried everything I could think of and even ran the Lenovo Rescue a few times.
After many hours, I came across this command for fastboot..."fastboot set_active a" which finally allowed me to boot into system. I assume this tablet uses the A/B slot partitions, but I think they only make use of the A for boot? Thats my thought
So next is too try to patch the correct disc.img for my current rom (which is the latest from Lenovo Rescue) and flash again making sure to flash to the boot_a partition and hopefully everything goes like it should
Hopefully that command helps someone save many hours if they find themselves stuck in fastboot mode while rooting and/or flashing.
el7145 said:
Since the original question was about root, Ill keep this going
I was able to download the most recent ROM from Lenovo rescue which was super simple, it downloads the ROM first and wont start the flash till you click the button. I did retrieve the stock boot.img, patched it, and flashed it, rebooted and had root. Heres where the many hours of fun started...I realized my wifi wasnt working (good sign something was messed up during flash). I realize the ROM downloaded from the Lenovo Rescue was newer then my old ROM. So I had flashed the newer boot.img over the old ROM (not good). I went back to Lenovo rescue to actually make use of the rescue and flash a full ROM. After completion I became stuck in fastboot mode. I could boot to recovery but not system and every restart or shutdown and restart would go straight to fastboot.
I did try to manually flash the ROM using what i thought was the right files and order (using flashinfo.txt as the order and MT6768_Android_scatter.txt for the partition names for each image). Everything flashed successfully, but upon reboot I was still stuck in fastboot mode. I tried everything I could think of and even ran the Lenovo Rescue a few times.
After many hours, I came across this command for fastboot..."fastboot set_active a" which finally allowed me to boot into system. I assume this tablet uses the A/B slot partitions, but I think they only make use of the A for boot? Thats my thought
So next is too try to patch the correct disc.img for my current rom (which is the latest from Lenovo Rescue) and flash again making sure to flash to the boot_a partition and hopefully everything goes like it should
Hopefully that command helps someone save many hours if they find themselves stuck in fastboot mode while rooting and/or flashing.
Click to expand...
Click to collapse
I'm trying to solve the fastboot issue but I can't find fastboot drivers for the tablet. Have any suggestions?
Siege9929 said:
I'm trying to solve the fastboot issue but I can't find fastboot drivers for the tablet. Have any suggestions?
Click to expand...
Click to collapse
im assuming in device manager, you have a yellow exclamation by "Android"? you need the mediatek drivers.
Go here https://developer.android.com/studio/run/oem-usb
scroll down, dont make the misake of clicking on "Lenovo", you are clicking on the section labeled "MTK" download the zip, go to device manager and manually update the driver, once updated fastboot should work
at cmd run "fastboot devices" to make sure your device is recognized
el7145 said:
im assuming in device manager, you have a yellow exclamation by "Android"? you need the mediatek drivers.
Go here https://developer.android.com/studio/run/oem-usb
scroll down, dont make the misake of clicking on "Lenovo", you are clicking on the section labeled "MTK" download the zip, go to device manager and manually update the driver, once updated fastboot should work
at cmd run "fastboot devices" to make sure your device is recognized
Click to expand...
Click to collapse
Manually selecting the "Android Bootloader" driver fixed it. Thanks!
I just got my TB125FU to replace my 7-year-old Google Pixel C on its last legs.
Its Hardware ID is USB\VID_0E8D&PID_201C&REV_0100
I found a pack of Mediatek drivers here.
It's a bloated pack, so I extracted just the files needed for the TB125FU and attached to this post.
Once installed, my tablet appeared with a "fastboot devices" command.
I have also had good luck with the latest firmware for Motorola/Lenovo devices here.
hugehead83 said:
I have also had good luck with the latest firmware for Motorola/Lenovo devices here.
Click to expand...
Click to collapse
just an fyi: thats not the most recent firmware, the lenovo rescue tool had the latest, which at the moment for my device a few days ago was TB125FU_S000118_220927_ROW