Database Users

Axon 7 brick

I've spent the whole night trying to figure this out, but to no avail. Here goes...
Hey guys, so I was innocently playing around with GravityBox when I restarted my phone so some new settings would kick in, and it sends me into a bootloop. I went into TWRP Recovery, and at first factory reset my phone, hoping it would solve the problem, but it didn't, so I ended up "Formatting Data", which still didn't work. I'm kind of new to this whole flashing/rooting/ business, and I was wondering how I could fix my phone. If turned on, it stays in the booting process with the golden "Axon" letters forever. The model is the US variant, it's bootloader is unlocked via the ZTE Request Form, and it currently has TWRP as it's custom recovery. Help will be much appreciated. Also, it's on OTA B20
Edit: Alright so I've tried to flash to boot.img as well as recovery.img in twrp, but both give me an error. Strangely enough, if I wait out the Axon logo for about 5 minutes, it actually boots up, but as if it was the first time turning it on (asks you to sign in to google, wi-fi setup, fingerpring setup, etc). Another thing I noticed was that it says I only have 4gb of storage, instead of the 64 it originally came with. Every time I reset it/turn it off, it makes me set up the phone again.
Edit #2: Fixed with the help of this thread http://forum.xda-developers.com/axon-7/how-to/how-to-restore-a2017u-to-functional-t3445895 Only problem seems to be that Wi-Fi does not work. /:

I had this problem and after restoring system backup in TWRP I losted my signal WiFi Imei ....
But I have 64 GB of storage again
Отправлено с моего HTC One M8 через Tapatalk

raber111 said:
I had this problem and after restoring system backup in TWRP I losted my signal WiFi Imei ....
But I have 64 GB of storage again
Отправлено с моего HTC One M8 через Tapatalk
Click to expand...
Click to collapse
I don't have a TWRP backup to restore to ): if that's what you mean, any other solutions?

I didn't have to but I found a backup on XDA . And I don't really know if you should use it or you should wait till full stock image will release.
Отправлено с моего HTC One M8 через Tapatalk

Did you happen to try the instructions to restore to stock already, http://forum.xda-developers.com/axon-7/how-to/how-to-restore-a2017u-to-functional-t3445895

reddrago said:
Did you happen to try the instructions to restore to stock already, http://forum.xda-developers.com/axon-7/how-to/how-to-restore-a2017u-to-functional-t3445895
Click to expand...
Click to collapse
I'm in the process of doing this as of right now, thank you. Will update.

It sounds like you're going to restore to stock, so perhaps this won't help at this point, but Xposed has a "safe mode" which can be activated during boot-up and perhaps help to resolve these sorts of issues...here's a thread about it:
http://forum.xda-developers.com/xposed/xposed-safemode-disable-xposed-easily-t3230336
This once saved me when I had a boot-loop issue with a tablet a while back. Good luck!

Same boat. last day or so of newegg 14 day return. At this point my decision is between Return or Replace. No ZTE image or flashable modem file means there is no fix for this, as far as I can tell.
FYI,. I have tried all of the possible fixes offered.

Barsky said:
Same boat. last day or so of newegg 14 day return. At this point my decision is between Return or Replace. No ZTE image or flashable modem file means there is no fix for this, as far as I can tell.
FYI,. I have tried all of the possible fixes offered.
Click to expand...
Click to collapse
Newegg is 30 day return.
Sent from my FRD-L04 using Tapatalk

flyer_andy said:
It sounds like you're going to restore to stock, so perhaps this won't help at this point, but Xposed has a "safe mode" which can be activated during boot-up and perhaps help to resolve these sorts of issues...here's a thread about it:
http://forum.xda-developers.com/xposed/xposed-safemode-disable-xposed-easily-t3230336
This once saved me when I had a boot-loop issue with a tablet a while back. Good luck!
Click to expand...
Click to collapse
Actually, I managed to get it to boot up and work normal (for the most part). The only problem is, Wi-Fi doesn't work.

bricky23 said:
Newegg is 30 day return.
Sent from my FRD-L04 using Tapatalk
Click to expand...
Click to collapse
Try doing what this thread says, http://forum.xda-developers.com/axon-7/how-to/how-to-restore-a2017u-to-functional-t3445895
If you have any questions feel free to pm,

Pollito788 said:
Actually, I managed to get it to boot up and work normal (for the most part). The only problem is, Wi-Fi doesn't work.
Click to expand...
Click to collapse
I'm in the exact same boat. Did you ever figure out how to get wifi back?

Pollito788 said:
Try doing what this thread says, http://forum.xda-developers.com/axon-7/how-to/how-to-restore-a2017u-to-functional-t3445895
If you have any questions feel free to pm,
Click to expand...
Click to collapse
Am I missing something. that dev-host site sends me exploit installers. good thing I do nightly acronis images.

Pollito788 said:
Actually, I managed to get it to boot up and work normal (for the most part). The only problem is, Wi-Fi doesn't work.
Click to expand...
Click to collapse
Flapjack said:
I'm in the exact same boat. Did you ever figure out how to get wifi back?
Click to expand...
Click to collapse
WiFi not working is a mismatch between boot.img and /system, they have to be from the same 'set' so if you flash B20_Boot (BL unlock) boot.img, you have to flash a matching /system as well. We have a problem with numerous file version marked just B20 floating around. From what i know, this
http://forum.xda-developers.com/showpost.php?p=68248798&postcount=53
is for sure the B20_Boot /system image , but i am unsure of anyone posting matching boot.img file. The one on idlekernel might be correct, since the dump came from B20_Boot BL unlocked phone, but it might have been modded. Maybe someone can post one

peramikic said:
WiFi not working is a mismatch between boot.img and /system, they have to be from the same 'set' so if you flash B20_Boot (BL unlock) boot.img, you have to flash a matching /system as well. We have a problem with numerous file version marked just B20 floating around. From what i know, this
http://forum.xda-developers.com/showpost.php?p=68248798&postcount=53
is for sure the B20_Boot /system image , but i am unsure of anyone posting matching boot.img file. The one on idlekernel might be correct, since the dump came from B20_Boot BL unlocked phone, but it might have been modded. Maybe someone can post one
Click to expand...
Click to collapse
Uggg... I'm really frustrated now, because I got it working with tenfar's original modified boot image and rczrider's system backup. Everything was working. Of course, I didn't have root, so like and idiot, I tried to flash SuperSU 2.76. The phone stuck at the LTE screen after that. I tried re-following all my past steps, and can get the phone to boot, but it's acting crazy. I have two empty SIM icons on the taskbar (I had none when it was working fine) and the phone is very jerky and laggy. I cannot shut it down, or connect to PC easily. It will frequently reboot on its own, and I can't even power it down (it'll say "shutting down" for a few minutes, then reboot).
I eventually got it to shutdown, and repeated the "How to reset..." steps, but it's still acting crazy. I've wiped everything except for system. I'm going to try that next.

peramikic said:
WiFi not working is a mismatch between boot.img and /system, they have to be from the same 'set' so if you flash B20_Boot (BL unlock) boot.img, you have to flash a matching /system as well. We have a problem with numerous file version marked just B20 floating around. From what i know, this
http://forum.xda-developers.com/showpost.php?p=68248798&postcount=53
is for sure the B20_Boot /system image , but i am unsure of anyone posting matching boot.img file. The one on idlekernel might be correct, since the dump came from B20_Boot BL unlocked phone, but it might have been modded. Maybe someone can post one
Click to expand...
Click to collapse
Would not mind fixing this rather than shipping my packed up axon7 to newegg. Think I have a few days before it has to ship, so I am open to working on it some more.
Thanks.
---------- Post added 08-29-2016 at 12:00 AM ---------- Previous post was 08-28-2016 at 11:51 PM ----------
Flapjack said:
Uggg... I'm really frustrated now, because I got it working with tenfar's original modified boot image and rczrider's system backup. Everything was working. Of course, I didn't have root, so like and idiot, I tried to flash SuperSU 2.76. The phone stuck at the LTE screen after that. I tried re-following all my past steps, and can get the phone to boot, but it's acting crazy. I have two empty SIM icons on the taskbar (I had none when it was working fine) and the phone is very jerky and laggy. I cannot shut it down, or connect to PC easily. It will frequently reboot on its own, and I can't even power it down (it'll say "shutting down" for a few minutes, then reboot).
I eventually got it to shutdown, and repeated the "How to reset..." steps, but it's still acting crazy. I've wiped everything except for system. I'm going to try that next.
Click to expand...
Click to collapse
Try flashing the 2.65 ver over it

peramikic said:
WiFi not working is a mismatch between boot.img and /system, they have to be from the same 'set' so if you flash B20_Boot (BL unlock) boot.img, you have to flash a matching /system as well. We have a problem with numerous file version marked just B20 floating around. From what i know, this
http://forum.xda-developers.com/showpost.php?p=68248798&postcount=53
is for sure the B20_Boot /system image , but i am unsure of anyone posting matching boot.img file. The one on idlekernel might be correct, since the dump came from B20_Boot BL unlocked phone, but it might have been modded. Maybe someone can post one
Click to expand...
Click to collapse
It kinda late right now but if that is what's needed I'll be uploading my boot
Image tomorrow (b20_boot),
P. S. I know for sure CM13 is just around the corner and that alone is fix for slot of you guys boot problems .

Barsky said:
Try flashing the 2.65 ver over it
Click to expand...
Click to collapse
That's the thing.... I've restored it repeatedly. All traces of 2.67 should be gone. I've completely restored it three times now.
I'm honestly thinking I'm better off returning this phone while it's still working. I wonder if something is wrong with it.

DrakenFX said:
It kinda late right now but if that is what's needed I'll be uploading my boot
Image tomorrow (b20_boot),
P. S. I know for sure CM13 is just around the corner and that alone is fix for slot of you guys boot problems .
Click to expand...
Click to collapse
tysm bro <3

DrakenFX said:
It kinda late right now but if that is what's needed I'll be uploading my boot
Image tomorrow (b20_boot),
P. S. I know for sure CM13 is just around the corner and that alone is fix for slot of you guys boot problems .
Click to expand...
Click to collapse
Brings DrakenFX some coffee and nudges him awake. :cyclops:

Rooted my H915 (Somewhat I guess)

So was following the guide to root with the Step Bat Files provided by
HTML:
http://forum.xda-developers.com/v20/development/ls997vs995h910-dirtysanta-bootloader-t3519410
using the Dirty Santa Guide for Unlocking the Bootloader and Rooting the device. Yes I Already know the H915 is not listed but worth a shot anyway..... to me at least. So after finally going though each step bat file multiple times and it failing several times I finally have TWRP Loaded as the Recovery on the Device I can access the Bootloader however when I check the Bootloader it does say it is locked and fastboot oem-unlock gives me the error remote: unknown command. Note that fastboot oem device-id also gives me the same error. Therefore I can't unlock he Bootloader I can reset the phone through the stock method of holding down the power button and volume down button when booting the phone after resetting it each time It boots me into TWRP I can flash all the files I have tested such as BOOT Images and new system images.... I have been working on this since the guide was posted yesterday and been up since 2 (6 Hours now) trying to get this to work today.... I would like to just get into the phone to access ADB so I can possibly revert to stock or keep trying to root. I can flash anything and wipe anything to the device throughout what I have tested I'm an idiot and did not backup the Stock H915 Files once getting into TWRP..... yes I'm Dumb IK (But I also tried rooting my H915 for a Verizon/ATT Root so what do you expect). thanks again to anyone who can help!

TheDantee said:
So was following the guide to root with the Step Bat Files provided by
HTML:
http://forum.xda-developers.com/v20/development/ls997vs995h910-dirtysanta-bootloader-t3519410
using the Dirty Santa Guide for Unlocking the Bootloader and Rooting the device. Yes I Already know the H915 is not listed but worth a shot anyway..... to me at least. So after finally going though each step bat file multiple times and it failing several times I finally have TWRP Loaded as the Recovery on the Device I can access the Bootloader however when I check the Bootloader it does say it is locked and fastboot oem-unlock gives me the error remote: unknown command. Note that fastboot oem device-id also gives me the same error. Therefore I can't unlock he Bootloader I can reset the phone through the stock method of holding down the power button and volume down button when booting the phone after resetting it each time It boots me into TWRP I can flash all the files I have tested such as BOOT Images and new system images.... I have been working on this since the guide was posted yesterday and been up since 2 (6 Hours now) trying to get this to work today.... I would like to just get into the phone to access ADB so I can possibly revert to stock or keep trying to root. I can flash anything and wipe anything to the device throughout what I have tested I'm an idiot and did not backup the Stock H915 Files once getting into TWRP..... yes I'm Dumb IK (But I also tried rooting my H915 for a Verizon/ATT Root so what do you expect). thanks again to anyone who can help!
Click to expand...
Click to collapse
Try this
Power Off
Hold Vol Down
Hold Power
When The LG Splash Screen Appears Release Power for 1 Sec then Re-Press
Answer Yes 2 times
Yep. I was having the same problem with TWRP. The above was the only fix I found and it took me a solid hour to get the button combo just right. If you still have the red triangle like myself, the button combo happens before that pops up. To clarify, so you're not wasting your time like I did. You'll try the button combo listed in the quote as soon as the LG logo pops up. If it goes past that to the red triangle, you missed your shot. Pull the battery and try again.
Also. It should be noted once you get into that separate menu and answer yes twice to wipe the phone. It will throw you back into TWRP. Dont be discouraged! In TWRP go to reboot>system.
Hope this works for you bud!

Lonewolf17a said:
Try this
Power Off
Hold Vol Down
Hold Power
When The LG Splash Screen Appears Release Power for 1 Sec then Re-Press
Answer Yes 2 times
Yep. I was having the same problem with TWRP. The above was the only fix I found and it took me a solid hour to get the button combo just right. If you still have the red triangle like myself, the button combo happens before that pops up. To clarify, so you're not wasting your time like I did. You'll try the button combo listed in the quote as soon as the LG logo pops up. If it goes past that to the red triangle, you missed your shot. Pull the battery and try again.
Also. It should be noted once you get into that separate menu and answer yes twice to wipe the phone. It will throw you back into TWRP. Dont be discouraged! In TWRP go to reboot>system.
Hope this works for you bud!
Click to expand...
Click to collapse
Already picked up another just forgot to update this post thanks for the help though

Lonewolf17a said:
Try this
Power Off
Hold Vol Down
Hold Power
When The LG Splash Screen Appears Release Power for 1 Sec then Re-Press
Answer Yes 2 times
Yep. I was having the same problem with TWRP. The above was the only fix I found and it took me a solid hour to get the button combo just right. If you still have the red triangle like myself, the button combo happens before that pops up. To clarify, so you're not wasting your time like I did. You'll try the button combo listed in the quote as soon as the LG logo pops up. If it goes past that to the red triangle, you missed your shot. Pull the battery and try again.
Also. It should be noted once you get into that separate menu and answer yes twice to wipe the phone. It will throw you back into TWRP. Dont be discouraged! In TWRP go to reboot>system.
Hope this works for you bud!
Click to expand...
Click to collapse
So is it safe to say you have an H915 successfully rooted? Are you using it with Freedom Mobile?

SHABBA JOTS said:
So is it safe to say you have an H915 successfully rooted? Are you using it with Freedom Mobile?
Click to expand...
Click to collapse
Sorry, I should have clarified my friend. I have a VS995. Deleted everything without making a backup so now I am running US996 stock deodex rom with konverged kernel.
However if your stuck in a twrp loop, the instructions in the quote is what I'd try first as I seemingly exhausted everything else to no avail. And it turned out to be the easiest of the solutions and the only one that worked haha.

SHABBA JOTS said:
So is it safe to say you have an H915 successfully rooted? Are you using it with Freedom Mobile?
Click to expand...
Click to collapse
The H915 is flashable to the H918 System Image allowing you to access things like the Bootloader and TWRP I just F**ked mine up.... if your willing to try and get super su on there go for itim sure it is possible to get a root working for it.

TheDantee said:
The H915 is flashable to the H918 System Image allowing you to access things like the Bootloader and TWRP I just F**ked mine up.... if your willing to try and get super su on there go for itim sure it is possible to get a root working for it.
Click to expand...
Click to collapse
my only issue is the cellular signal, in the dirtysanta thread, they mentioned that it worked for the h915, but that the dev was having signal issues. I'm not inclined in this sort of thing so I can't really try until someone on the same carrier can confirm.
I'm in no rush tho

SHABBA JOTS said:
my only issue is the cellular signal, in the dirtysanta thread, they mentioned that it worked for the h915, but that the dev was having signal issues. I'm not inclined in this sort of thing so I can't really try until someone on the same carrier can confirm.
I'm in no rush tho
Click to expand...
Click to collapse
Could you not just reflash a H915 modem from a backup?

TheDantee said:
Could you not just reflash a H915 modem from a backup?
Click to expand...
Click to collapse
this should theoretically work.
I know for Samsung phones that was possible.
I had a Note phone from Rogers, and flashed it with a Galaxy S modem for Wind / Tmobile and it worked to unlock the AWS signal, that was not supposed to be supported officially.
I'm hoping LG phones are similar in that way, in which files / modems / boot can be transplanted from one phone model to another.
I'm just not familiar enough yet with LG phones, first time switching away from Samsung after soooo many years.

AllGamer said:
this should theoretically work.
I know for Samsung phones that was possible.
I had a Note phone from Rogers, and flashed it with a Galaxy S modem for Wind / Tmobile and it worked to unlock the AWS signal, that was not supposed to be supported officially.
I'm hoping LG phones are similar in that way, in which files / modems / boot can be transplanted from one phone model to another.
I'm just not familiar enough yet with LG phones, first time switching away from Samsung after soooo many years.
Click to expand...
Click to collapse
LOL yeah i came from a Note 7 to a G5 to the V20 so idk much about LG Phones yet...

Is flashing the h915 modem confirmed to work? I havent seen any posts about anyone with this varient being successful, but maybe most are like me and too incompetent to take the first step lol
Sent from my LG-H915 using Tapatalk

SHABBA JOTS said:
Is flashing the h915 modem confirmed to work? I havent seen any posts about anyone with this varient being successful, but maybe most are like me and too incompetent to take the first step lol
Sent from my LG-H915 using Tapatalk
Click to expand...
Click to collapse
I took many steps and got a Working TWRP Recovery and had a bootloader however when i went to flash in the ROM and then reset the phone it failed and I got stuck and had to get the model replaced... However I do know for sure that you can get TWRP and a bootloader working on the H915 using the DirtySanta Method from there is the hard part if your willing to take those steps lol.... MAKE BACKUPS! I have not tried to root my New V20 yet... If I get around to it I will be sure to let you know, some people have confirmed it has rooted but you do need the modem all high risk for the reward lol

[Dirty-Santa Root] Bricked Verizon LG V20 Please Help!!!

I have rooted many phones before without an issue, and during the root process for this phone, everything was going great, I flashed SuperSU zip in TWRP and rebooted, since it was the first boot I expected a decently long wait, after about 25 minutes I followed the guide's instructions for Verizon since it did say some Verizon users were experiencing long first boot times. I took the battery out like it said, put it back in, then proceeded to fastboot boot2.img, like the guide said. After letting it sit for an hour this time, I got the idea that something was obviously wrong. After multiple attempts with no success I tried to fix it myself. So far I have learned that on the fastboot screen it says my bootloader is locked again, even after unlocking it. I have tried flashing TWRP as a recovery, just to at least have a recovery boot, that does not work either unfortunately. So as of right now, all I have is a v20 that has no OS, a locked bootloader, no way of booting recovery, I can fastboot with no ADB, and its virtually a paperweight. If anyone has a solution to at least get back to Stock, I would greatly appreciate it! Thanks!

First off. It will say: Bootloader Unlocked: No
Thats normal. 2nd. you are not bricked. You have TWRP installed. You just need to redo some steps.
PM me. and I will help you.

Did you get it fixed?

frome901 said:
Did you get it fixed?
Click to expand...
Click to collapse
He has not responded to my pm

What roms can we use with dirty santa root?

me2151 said:
First off. It will say: Bootloader Unlocked: No
Thats normal. 2nd. you are not bricked. You have TWRP installed. You just need to redo some steps.
PM me. and I will help you.
Click to expand...
Click to collapse
Bricked 2 LG V20s this way any help would be appreciated lol what steps do I need to redo...

TheDantee said:
Bricked 2 LG V20s this way any help would be appreciated lol what steps do I need to redo...
Click to expand...
Click to collapse
In his case we needed to redo from step 3.

I managed to un-brick mines after returning sadly from the Sprint store.
First, get to the boot loader screen and try running thru the steps again, especially step 3. You need to make sure you have TWRP.
Use this link to make sure you can get into the different modes (Download mode, fastboot, etc) http://www.hardreset.info/devices/lg/lg-v20/
Once you can get TWRP to show up,then you are good. In the mean time I downloaded "LS997-deODEXd-signed"
When I got into TWRP, I transferred the file to my phone. Rebooted from TWRP back into TWRP and flashed the ROM.
During my reboots, I do get a message saying my phone is corrupt, blah blahblah, but I just wait a few seconds and it will boot up.
Hope this helps.
I had managed to brick mines only 3 hours after upgrading from my Note 4. It took me from 9pm to almost 2am to get it back up again. I can live with the message about my phone being unbootable until someone comes up with a work thru.

Bricked T-Mobile v20
I have rooted many phones before without an issue, and during the root process for this phone, everything was going great, I flashed SuperSU zip in TWRP and rebooted, since it was flash a new rom on it then i get boot loop with TWRP. so i decide to OEM LOCK again after that everything was stuck on my phone just boot loop with LG so any solutions please help me...... THx u for help me.

Kinda nerve wrecking to read about all these "bricked" phones popping up after trying this method lol.. Perhaps I'll just wait until a more tried and true way comes out...

Dirty Santa root is not for the average user who has a couple of experience in rooting.
You have to at least have background on Hard bricking phones to fully understand what you are getting yourself into

For anyone that isnt on sprint that has "bricked" their phone. There are kdz's that will allow you to reflash back to 'stock". Someone had an issue with the kdz, but it was an easy fix. If you failed the process, it can be restored. Just if it doesnt want to boot, just lock and unlock the bootloader...
If your phone doesnt have a kdz, I know TeamDev is working on a custom kdz for such phones. Don't bug him if it isn't finished as I type this.
Anyone that can't get into TWRP, or has failed the process. Either start back at step 3, or if you have TWRP installed but can't get to it, the manual way to get into TWRP is a pain.
Keep your back cover off and hold the volume down button for ease. Now press the power button and as soon as you see an LG logo, let go and repress the power button. Its tricky.... If you get the corrupted screen, pop your battery out and put it back in quick and repress volume down and power. Usually if Im quick enough the first LG logo will hang a lot longer than usual and that gives me time to enter TWRP. A factory reset screen will pop up. Hit Yes twice.

Please help urgent
lcovel said:
I managed to un-brick mines after returning sadly from the Sprint store.
First, get to the boot loader screen and try running thru the steps again, especially step 3. You need to make sure you have TWRP.
Use this link to make sure you can get into the different modes (Download mode, fastboot, etc)
Once you can get TWRP to show up,then you are good. In the mean time I downloaded "LS997-deODEXd-signed"
When I got into TWRP, I transferred the file to my phone. Rebooted from TWRP back into TWRP and flashed the ROM.
During my reboots, I do get a message saying my phone is corrupt, blah blahblah, but I just wait a few seconds and it will boot up.
Hope this helps.
I had managed to brick mines only 3 hours after upgrading from my Note 4. It took me from 9pm to almost 2am to get it back up again. I can live with the message about my phone being unbootable until someone comes up with a work thru.
Click to expand...
Click to collapse
Please can u help ke unbrick mine i bought this mobile in my country its expensive and has no support. I have tried all tools but still getting the error model unknown please help sir

Jaistah said:
Dirty Santa root is not for the average user who has a couple of experience in rooting.
You have to at least have background on Hard bricking phones to fully understand what you are getting yourself into
Click to expand...
Click to collapse
What does that mean? Not for the average user who has a couple of experiences in rooting.
I've only rooted 2 phones, this is my 3rd (maybe 4th). I am on Sprint. Instructions worked fine for me. I did have one hiccup, but it was my fault, and I was able to root just fine. I've been running for a few months now.
I have not flashed any custom ROM yet, I'm going to wait for the next major version of Android to come out. The only mods I've done so far are Titanium Backup install so I can remove Sprint crap.

yuppicide said:
What does that mean? Not for the average user who has a couple of experiences in rooting.
I've only rooted 2 phones, this is my 3rd (maybe 4th). I am on Sprint. Instructions worked fine for me. I did have one hiccup, but it was my fault, and I was able to root just fine. I've been running for a few months now.
I have not flashed any custom ROM yet, I'm going to wait for the next major version of Android to come out. The only mods I've done so far are Titanium Backup install so I can remove Sprint crap.
Click to expand...
Click to collapse
it means dirty santa root got a high posibility rate of bricking a device compared to other root methods for other devices and if you have no experience in bricking phones before then you're screwed if it happens to you

Actually, if you follow the directions, almost none of the problems create a true brick-- which means unrecoverable. For most of the cases, you might get a soft brick, meaning you have to back out, use a KDZ to repair it or reflash something else, or start over from scratch and try again-- but usually (maybe with some help from here) you can pull the phone back into a usable state.
I would hazard to guess for the vast majority the process works fine, maybe with a hiccup, but I've not seen many reports of a truly unrecoverable brick from this method. It's complicated, yes, and you need to be ready to read a LOT to understand what's going on, but it seems pretty difficult to end up with a $700 paperweight with this.

So i have been trying tonroot my sprint lg v20 and everytime i try and go to the phone on mobile terminal to enter id
Then enter the apply patch /system/bin/atd /storage/emulated/0/dirtysanta i get this message and i cant go to step 2 to boot into recovery

Any help would be appreciated: i have a sprint v20 and i wanted to know if i have to flash the stock sprint rom or can i just flash lineage rom following this guide? I have it running on AT&T and i want to keep it on AT&T...

can you please assist
Could you help out, please? I don't believe I have hard bricked my LG V20 H910. However, I have read and tried all of the unbrick info out. It seems my screw up is unique. I completed dirty Santa then went to flash a custom. in the boot between that. I get a black screen and cant do anything even download mode will not come up. My PC does make its usual noises when i connect or disconnect, but my phone does nothing.

Ok, I managed to brick mine too. It's a VS995, it was running stock 1AC. I used the LGUP tool to downgrade it to VS99512A, and then did Dirty Sanata and TWRP. After booting into TWRP I decided to try lineage OS with Android 8.0, I did not make a backup of the Stock ROM, which was very stupid. Lineage OS 15.1 flashed but I had no cell service so I panicked and instead of wiping it in TWRP and using the backup of stock I should have created, I just opened LGUP and tried to downgrade it back to stock VSS99512A. Well LGUP said it worked, but when it went to boot it would hang at the Verizon logo with 4 pastel dots. Device manager could see an ADB device and I could connect to it with ADB. So I did and read the logcat. I could see it was trying to update as part of the rollback, but it appeared that some components from Android 8x could not be "upgraded" to Andoird 7.x. There was a repeated error about failing to update SQLite instance version from 3 to 1.
The one feature that could fix this is if the refurbish function worked with any of the VS995 KDZ files we all have access to. But alas, none work instead we only get the upgrade function... or so I thought. Somewhere in my search for the past 2 weeks I found a modified LGUP https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
**Please be warned what I did was absolutely ****ing stupid, and it was sheer luck I didn't screw anything up.**
From what I can tell if you only flash ("LGUP Upgrade") the KDZ from the same model it never clears the partition it just adds to it. My problem was there was stuff from lineage OS 15 stuck on one of the partitions that was making the rollback to stock fail because it kept saying it couldn't update the SQLLite DB from 3 to 1. So no "upgrade" within LGUP would work because the upgrade function does not clear internal storage. But the link above is to a version someone modded so you can force a partition update from any KDZ onto the system. So I started playing around with forcing KDZs from other models onto my VS995, and I noticed when using the Partion DL function with non-VS995 KDZ files it would say something about the partition changing. All I can assume is that the partition layout is so different on each model and it forces LGUP to re-partition the storage.
**Again I state for the record this was stupid, and I'm only fortunate it worked.**
I forced Partion DL of H91510d_00_VTR_CA_OP_1110.kdz, then H990N10b_00_OPEN_HK_DS_OP_1017.kdz, then back to VS99512A_06_1114_ARB00.kdz, then when it booted it gave the Verizon hello, and moved on finally but the setting service kept crashing while it was trying to load the Secure Boot screen. So I yanked the battery and went into the boot menu and did the Factory Reset function, and it worked.
Lesson learned, always make a backup and don't be so hasty to use tools that aren't fully functional (LGUP).
Perhaps what I've done may help others, maybe I've found out how to reimage or unbrick our V20s. Or maybe I just got really stupid lucky.

Bricked A2017U

I'm not sure exactly what I did wrong, but in the process of trying to root my B15 A2017U, it ended up in a state of, I'm guessing, permanent EDL mode. The phone gives absolutely no response to any buttons or attempts to boot it (no vibration, no lights, just a black screen, whether I try to boot normally, boot to recovery, or boot to EDL), it does show up in device manager as Qualcomm HS-USB QDLoader 9008 (COM10), but adb won't recognise it, and it shows up in MiFlash but any attempt to flash anything results in "cannot receive hello packet", "try to reset status" and eventually "error:The write timed out."
I've been reading through a lot of threads here, but at this point I'm pretty much out of ideas, and I'd really like to have a phone for work in 6 hours. Can anyone help, please?
Not sure how useful it will be, but here's everything I can remember about what I've done just so there's something to go on. First, I tried a few days ago as detailed in this post, and put it aside after that post. Aside from not being able to get to recovery at that point, the phone was working perfectly. Today, seeing the new Axon7Toolkit, I decided to give it a try. I managed to unlock the bootloader and get into TWRP recovery (during the process, it asked me for a decryption password and I hit cancel). I've done a lot of reading and searching since then so I can't recall the exact steps I took after that, but I wiped the device (I didn't change the filesystem or anything) and got errors, and then after seeing the "your device can't be checked for corruption" message I searched and found that I need to mount system, so I did so (not in read-only), and wiped again, this time with no error messages. I can't remember if I did anything else in TWRP aside from looking through the options available. After that, I think what I did was "Flash TWRP and/or root" again in Axon7Toolkit, and I think something went wrong at that point. That's pretty much all I know.

Aspoehro said:
I'm not sure exactly what I did wrong, but in the process of trying to root my B15 A2017U, it ended up in a state of, I'm guessing, permanent EDL mode. The phone gives absolutely no response to any buttons or attempts to boot it (no vibration, no lights, just a black screen, whether I try to boot normally, boot to recovery, or boot to EDL), it does show up in device manager as Qualcomm HS-USB QDLoader 9008 (COM10), but adb won't recognise it, and it shows up in MiFlash but any attempt to flash anything results in "cannot receive hello packet", "try to reset status" and eventually "error:The write timed out."
I've been reading through a lot of threads here, but at this point I'm pretty much out of ideas, and I'd really like to have a phone for work in 6 hours. Can anyone help, please?
Not sure how useful it will be, but here's everything I can remember about what I've done just so there's something to go on. First, I tried a few days ago as detailed in this post, and put it aside after that post. Aside from not being able to get to recovery at that point, the phone was working perfectly. Today, seeing the new Axon7Toolkit, I decided to give it a try. I managed to unlock the bootloader and get into TWRP recovery (during the process, it asked me for a decryption password and I hit cancel). I've done a lot of reading and searching since then so I can't recall the exact steps I took after that, but I wiped the device (I didn't change the filesystem or anything) and got errors, and then after seeing the "your device can't be checked for corruption" message I searched and found that I need to mount system, so I did so (not in read-only), and wiped again, this time with no error messages. I can't remember if I did anything else in TWRP aside from looking through the options available. After that, I think what I did was "Flash TWRP and/or root" again in Axon7Toolkit, and I think something went wrong at that point. That's pretty much all I know.
Click to expand...
Click to collapse
I think you got the "cannot receive hello packet", because your bootloader is locked. Using this method https://forum.xda-developers.com/axon-7/development/axon7tool-flash-backup-boot-recovery-t3514254 to unlock it, then flash twrp, then firmware

The bootloader was unlocked (though it may have been unintentionally re-locked somehow?), and MiFlash works with a locked bootloader, so I don't think that's the issue. Axon7tool also doesn't help, because just like adb it can't find the device.
Now, trying again today, MiFlash is working for some reason. I haven't done anything differently, but I can flash whatever I want with MiFlash now. But it doesn't really make a difference, because the phone is still entirely unresponsive, I can't enter recovery or boot in any way. Any suggestions for what else to try?

Aspoehro said:
I'm not sure exactly what I did wrong, but in the process of trying to root my B15 A2017U, it ended up in a state of, I'm guessing, permanent EDL mode. The phone gives absolutely no response to any buttons or attempts to boot it (no vibration, no lights, just a black screen, whether I try to boot normally, boot to recovery, or boot to EDL), it does show up in device manager as Qualcomm HS-USB QDLoader 9008 (COM10), but adb won't recognise it, and it shows up in MiFlash but any attempt to flash anything results in "cannot receive hello packet", "try to reset status" and eventually "error:The write timed out."
I've been reading through a lot of threads here, but at this point I'm pretty much out of ideas, and I'd really like to have a phone for work in 6 hours. Can anyone help, please?
Not sure how useful it will be, but here's everything I can remember about what I've done just so there's something to go on. First, I tried a few days ago as detailed in this post, and put it aside after that post. Aside from not being able to get to recovery at that point, the phone was working perfectly. Today, seeing the new Axon7Toolkit, I decided to give it a try. I managed to unlock the bootloader and get into TWRP recovery (during the process, it asked me for a decryption password and I hit cancel). I've done a lot of reading and searching since then so I can't recall the exact steps I took after that, but I wiped the device (I didn't change the filesystem or anything) and got errors, and then after seeing the "your device can't be checked for corruption" message I searched and found that I need to mount system, so I did so (not in read-only), and wiped again, this time with no error messages. I can't remember if I did anything else in TWRP aside from looking through the options available. After that, I think what I did was "Flash TWRP and/or root" again in Axon7Toolkit, and I think something went wrong at that point. That's pretty much all I know.
Click to expand...
Click to collapse
Hi, I'm the dev for the toolkit and I think I know what the problem is. Can you go into C:\Axon7Development\Axon7Toolkit\twrp and see what the size of the image is? It may have been a bad download. Either that or there is issues with the latest version of SupersSU if you chose the root option.

bkores said:
Hi, I'm the dev for the toolkit and I think I know what the problem is. Can you go into C:\Axon7Development\Axon7Toolkit\twrp and see what the size of the image is? It may have been a bad download. Either that or there is issues with the latest version of SupersSU if you chose the root option.
Click to expand...
Click to collapse
twrp-3.1.0-0-ailsa_ii.img is 14.1 MB

Aspoehro said:
twrp-3.1.0-0-ailsa_ii.img is 14.1 MB
Click to expand...
Click to collapse
Ok so TWRP is definitely not the problem. Can you remember exactly when the problem happened, like after SuperSU was flashed since you mentioned using the Flash TWRP and root option?

I don't remember any specific details, but I'm fairly certain I didn't get to the point of flashing SuperSU. I think the most likely cause is me doing something wrong in TWRP (I was trying to follow vague guides mixed with scattered information throughout various threads), and when I did "Flash TWRP and/or root" after flashing TWRP, I think I got some error messages right away.
One problem I do remember is that the toolkit would sometimes say something like "device not found", but still try to continue whatever it was doing and move on to the next step as if there were no problems. Unfortunately I don't remember exactly when it did that, so I can't give any details on how you could reproduce it.

Hey, I had exactly the same problem. Are you saying miflash is now working (you get success at the end!) ? If so, I don't understand why it wouldn't boot afterwards.
If not, in my case, a computer reboot, switching to MiFlash Beta and switching com ports eventually allowed me to flash successfully B15 full package after 3 hours of cannot receive hello packet. You could always try full B13 (Chinese rom) or other similar packages to see if it makes a difference. You'll be able to revert afterwards.

Aspoehro said:
I don't remember any specific details, but I'm fairly certain I didn't get to the point of flashing SuperSU. I think the most likely cause is me doing something wrong in TWRP (I was trying to follow vague guides mixed with scattered information throughout various threads), and when I did "Flash TWRP and/or root" after flashing TWRP, I think I got some error messages right away.
One problem I do remember is that the toolkit would sometimes say something like "device not found", but still try to continue whatever it was doing and move on to the next step as if there were no problems. Unfortunately I don't remember exactly when it did that, so I can't give any details on how you could reproduce it.
Click to expand...
Click to collapse
So you're sure that your problem is not because of my toolkit? Regardless looks like now I have to fix the ADB check

Gnreux said:
Hey, I had exactly the same problem. Are you saying miflash is now working (you get success at the end!) ? If so, I don't understand why it wouldn't boot afterwards.
If not, in my case, a computer reboot, switching to MiFlash Beta and switching com ports eventually allowed me to flash successfully B15 full package after 3 hours of cannot receive hello packet. You could always try full B13 (Chinese rom) or other similar packages to see if it makes a difference. You'll be able to revert afterwards.
Click to expand...
Click to collapse
MiFlash does seem to be working, I don't get any errors and it says it flashed successfully. I tried flashing B15 full and fastboot unlock from here, neither allowed the phone to boot.
Any suggestions for specific files to try flashing?
bkores said:
So you're sure that your problem is not because of my toolkit? Regardless looks like now I have to fix the ADB check
Click to expand...
Click to collapse
I can't be sure since I don't know exactly what the problem is or how I caused it. All I really have are guesses at this point.

Aspoehro said:
MiFlash does seem to be working, I don't get any errors and it says it flashed successfully. I tried flashing B15 full and fastboot unlock from here, neither allowed the phone to boot.
Any suggestions for specific files to try flashing?
Click to expand...
Click to collapse
I rebricked myself last night (lol), so I had to reflash full package, from the same link you posted, and here are some notes:
It seemed on first boot that it didn't work: usual three blinks of LED followed by a black screen
Second boot worked (and I now remember that the same thing had happened the first time I bricked my device), but Android asked me for a password even though I had formatted /data
From there, install TWRP via fastboot (and fastboot_unlock prior to that if bootloader is locked, it shouldn't be), format /data using TWRP, reboot, and you should have a working device
Hope it helps!

Gnreux said:
It seemed on first boot that it didn't work: usual three blinks of LED followed by a black screen
Click to expand...
Click to collapse
I don't even get that much, nothing I do gets any response from the phone at all. No LED when trying to boot (including EDL or recovery), no LED when charging, the only indication that the phone isn't perfectly dead is that it shows up in device manager and MiFlash.

You could try not flashing fastboot_unlock right away and booting first instead... This is the only thing we are doing differently, although I don't see how it could have an impact.
You could also try flashing this EDL package (B13) instead and flash your device specific bootstack afterwards.

Still no luck with anything I try to flash in MiFlash. But I tried reinstalling drivers with Zadig, and axon7tool is working this time. Trying to read gpt works fine, but if I try to read/write boot or recovery, I get "W: bad lba in partition entry 26" and "Cannot find partition boot"/"Cannot find partition recovery". I tried writing TWRP and a couple stock boot/recovery images despite the error, still no change.
Do those error messages give any new information that might be helpful?

Try miflash firmware from offical:
https://www.zteusa.com/axon-7#support

Not sure if this will help you but that miflash utility is a piece of ******** to work with I found.
When extracting the zip files there will usually be 2 folders in them, one is meta-something and the other one has the full name of the zip file, you have to select the full name one beside the meta folder not the parent folder.
Also Sometimes you need to hold all the buttons again and "restart" edl mode before the "hello packet" issues go away.

lipe123 said:
Not sure if this will help you but that miflash utility is a piece of ******** to work with I found.
When extracting the zip files there will usually be 2 folders in them, one is meta-something and the other one has the full name of the zip file, you have to select the full name one beside the meta folder not the parent folder.
Also Sometimes you need to hold all the buttons again and "restart" edl mode before the "hello packet" issues go away.
Click to expand...
Click to collapse
Thank you. This helped me. Why the *$*# can't the program just pick the zip file, or tell you which folder to pick? Until I found your post, I had no idea which folder to pick.
Thanks!!!
:victory:

Flapjack said:
Thank you. This helped me. Why the *$*# can't the program just pick the zip file, or tell you which folder to pick? Until I found your post, I had no idea which folder to pick.
Thanks!!!
:victory:
Click to expand...
Click to collapse
Glad it helped someone!

Moto E4 sperry XT1766 not booting up after a restore via TWRP

Long story short, my phone only displays the n/a screen and won't boot up.
I got the phone from Sprint, and it is the Qualcomm version. (The box says that anyway.) I wanted to root the device, so I unlocked the bootloader and attempted to flash SuperSU. This didn't work, as the app didn't show after the flash. I then tried to use Magisk, but I received Error 1 (boot image patched by other programs). To fix this issue, I downloaded a similar stock ROM and tried to install that. I ended up just wiping all the data on the phone, including the OS. Luckily I did make a nandroid backup.
The phone currently has no OS, due to me wiping all my data on it. I made a backup of when it did work (said earlier), with all partitions excluding Data. I have restored it, but it doesn't boot up. TWRP says nothing about there being no OS on the phone. I can't find a stock ROM of this particular phone, but there are some close ones. (sperry XT1768 I believe.) If anyone could help me restore my phone or possibly provide me the stock ROM I would be beyond grateful. I would also be also be okay with posting any logs or things you need.
Thanks much!

Go here:
https://firmware.center/firmware/Motorola/Moto E4/Stock/
This is the Boost XT1766 firmware :
https://firmware.center/firmware/Mo...ubsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip

I did a dumb and was rewarded
So, I ended up flashing the sperry XT1768 ROM that I had downloaded. Keep in mind I already lacked an OS, so I had nothing to lose.
PLEASE NEVER FLASH A ROM THAT DOESN'T BELONG TO YOUR DEVICE. THIS COULD CAUSE YOUR PHONE TO BE BRICKED.
Against the above statement, I literally had nothing to lose. I got my phone to boot up, and it has all of its functionality. Thank you for posting the correct software amarc78, I'll have to flash the correct ROM at a later time.
Moral of the story, please know what you are doing before you do something dumb. Use proper forums (such as the one you are on...) to do such tasks as rooting your phone.

Zachery Calahan said:
So, I ended up flashing the sperry XT1768 ROM that I had downloaded. Keep in mind I already lacked an OS, so I had nothing to lose.
PLEASE NEVER FLASH A ROM THAT DOESN'T BELONG TO YOUR DEVICE. THIS COULD CAUSE YOUR PHONE TO BE BRICKED.
Against the above statement, I literally had nothing to lose. I got my phone to boot up, and it has all of its functionality. Thank you for posting the correct software amarc78, I'll have to flash the correct ROM at a later time.
Moral of the story, please know what you are doing before you do something dumb. Use proper forums (such as the one you are on...) to do such tasks as rooting your phone.
Click to expand...
Click to collapse
Hmmmm, sounds intriguing. I soft bricked my xt1766 a few days ago and have found multiple fixes, but nothing that sticks. That above firmware? Took me two days to realize I needed RSD Lite to flash it. What was that RSD Lite? You play funny with Windows 10, no worries, I'll create my own batch file to manually flash this firmware.........WHAT!!!!!!! Why is there a multi colored ring saying "erasing" at the bottom and rebooting every 30 seconds?????? So after further research and "multiple error 7s" as well as "cant mount cache/data" errors, I came to another fix, lo and behold, im in a TWRP bootloop. Long story short, FML!!!!! Im glad you found a fix. Happy flashing.

TeamAndro08 said:
Hmmmm, sounds intriguing. I soft bricked my xt1766 a few days ago and have found multiple fixes, but nothing that sticks. That above firmware? Took me two days to realize I needed RSD Lite to flash it. What was that RSD Lite? You play funny with Windows 10, no worries, I'll create my own batch file to manually flash this firmware.........WHAT!!!!!!! Why is there a multi colored ring saying "erasing" at the bottom and rebooting every 30 seconds?????? So after further research and "multiple error 7s" as well as "cant mount cache/data" errors, I came to another fix, lo and behold, im in a TWRP bootloop. Long story short, FML!!!!! Im glad you found a fix. Happy flashing.
Click to expand...
Click to collapse
I used this rsdlite, and it works on my PC with Windows 10. Just make sure you have Motorola drivers installed.

madbat99 said:
I used this rsdlite, and it works on my PC with Windows 10. Just make sure you have Motorola drivers installed.
Click to expand...
Click to collapse
Im at work now, but when I get home, I'll definitely give that pony a whirl! Thanks man.

TeamAndro08 said:
Im at work now, but when I get home, I'll definitely give that pony a whirl! Thanks man.
Click to expand...
Click to collapse
For the Twrp loop, try selecting reboot bootloader, then in bootloader, select start. That should get you into system.
There is a fix for that, I'll find the link. Some twrp build aren't wiping something properly and causes a recovery loop after formatting data.

madbat99 said:
For the Twrp loop, try selecting reboot bootloader, then in bootloader, select start. That should get you into system.
There is a fix for that, I'll find the link. Some twrp build aren't wiping something properly and causes a recovery loop after formatting data.
Click to expand...
Click to collapse
Definitely appreciate the info brother, I havent been able to get to it cuz of work. But tonight, I will try all things youve mentioned.

TeamAndro08 said:
Hmmmm, sounds intriguing. I soft bricked my xt1766 a few days ago and have found multiple fixes, but nothing that sticks. That above firmware? Took me two days to realize I needed RSD Lite to flash it. What was that RSD Lite? You play funny with Windows 10, no worries, I'll create my own batch file to manually flash this firmware.........WHAT!!!!!!! Why is there a multi colored ring saying "erasing" at the bottom and rebooting every 30 seconds?????? So after further research and "multiple error 7s" as well as "cant mount cache/data" errors, I came to another fix, lo and behold, im in a TWRP bootloop. Long story short, FML!!!!! Im glad you found a fix. Happy flashing.
Click to expand...
Click to collapse
THIS! Have you ever found a solution? I have the EXACT SAME PROBLEM

steevo398 said:
THIS! Have you ever found a solution? I have the EXACT SAME PROBLEM
Click to expand...
Click to collapse
So you're in a TWRP loop now?

madbat99 said:
So you're in a TWRP loop now?
Click to expand...
Click to collapse
You're just all over the place, kudos to your dedication.
Basically in trying to fix the bad key/erasing boot loop I flashed twrp and tried to format data/unencrpyt which in turn throws errors which require manually reformatting /data until errors are gone and then formatting/unencrypting again which upon rebooting turns into twrp loop. Then tried to flash no-verity, the twrp loop persists.

steevo398 said:
You're just all over the place, kudos to your dedication.
Basically in trying to fix the bad key/erasing boot loop I flashed twrp and tried to format data/unencrpyt which in turn throws errors which require manually reformatting /data until errors are gone and then formatting/unencrypting again which upon rebooting turns into twrp loop. Then tried to flash no-verity, the twrp loop persists.
Click to expand...
Click to collapse
Used to have a couple of these phones .
If you're stuck in a TWRP loop
The quick workaround is to reboot to bootloader, then proceed from there to Start. However, you'll need to do this *every* time until the BCB is cleared.
To clear the BCB manually, issue this command in TWRP terminal:
Code:
dd if=/dev/zero of=/dev/block/bootdevice/by-name/misc bs=1M
have you tried formatting data, then flashing.magisk?