[Q] Flash stock with security error - G2 Q&A, Help & Troubleshooting

Ok, so I flashed cleanrom ex, and on reboot I got a security error.
I tried to get to recovery, but it wipes data and immediately reboots.
I've tried flashing the stock rom, but lg flash tool tells me it's the wrong device (now thinks it's a D802).
I've been trying to get into TWRP on scrosler and samsunggalaxystig's advice, first by repeatedly trying an adb reboot recovery, then by writing a batch script to do it repeatedly in order to catch it before it reboots.
Problem is, I don't know if I had already had ADB drivers installed on this computer for the G2 (had rooted while at work), and despite installing them more than once, I don't think the device actually has enough time to be recognized as I still have an unrecognized "g2" in device manager while TWRP is wiping.
Any ideas? Is there any way I can force the install of the ADB driver without having it connected for more than 20 seconds? Spitballing... would it be possible to actually flash a D802 image so I could then root, change the build.prop to D800, and then flash the D800 image?
Totally at a loss at this point.

did you solve your problem? i have a similar problem and i just bricked an s3. this g2 is brand new and now it's bricked too! if you have found a solution please respond... :crying:

kureta said:
did you solve your problem? i have a similar problem and i just bricked an s3. this g2 is brand new and now it's bricked too! if you have found a solution please respond... :crying:
Click to expand...
Click to collapse
No problem if you brick a sammy phone. its easy to flash stock rom. How did you brick your g2?
---------- Post added at 08:13 PM ---------- Previous post was at 08:11 PM ----------
lastdeadmouse said:
Ok, so I flashed cleanrom ex, and on reboot I got a security error.
I tried to get to recovery, but it wipes data and immediately reboots.
I've tried flashing the stock rom, but lg flash tool tells me it's the wrong device (now thinks it's a D802).
Totally at a loss at this point.
Click to expand...
Click to collapse
Why did flashing a rom leads you to that error? Sorry but not familiar with your roms but is this rom really for your LG G2 model?

lastdeadmouse said:
Ok, so I flashed cleanrom ex, and on reboot I got a security error.
I tried to get to recovery, but it wipes data and immediately reboots.
I've tried flashing the stock rom, but lg flash tool tells me it's the wrong device (now thinks it's a D802).
I've been trying to get into TWRP on scrosler and samsunggalaxystig's advice, first by repeatedly trying an adb reboot recovery, then by writing a batch script to do it repeatedly in order to catch it before it reboots.
Problem is, I don't know if I had already had ADB drivers installed on this computer for the G2 (had rooted while at work), and despite installing them more than once, I don't think the device actually has enough time to be recognized as I still have an unrecognized "g2" in device manager while TWRP is wiping.
Any ideas? Is there any way I can force the install of the ADB driver without having it connected for more than 20 seconds? Spitballing... would it be possible to actually flash a D802 image so I could then root, change the build.prop to D800, and then flash the D800 image?
Totally at a loss at this point.
Click to expand...
Click to collapse
Hey I'm in the exact same position as you... did you manage to figure out a way to get into recovery?

kureta said:
did you solve your problem? i have a similar problem and i just bricked an s3. this g2 is brand new and now it's bricked too! if you have found a solution please respond... :crying:
Click to expand...
Click to collapse
twrp corrupted my cache partition and the phone could not boot. i tried to flash cwm while in twrp and i guess i messed up recovery and/or boot partitions. al i could get was fastboot. i flashed a boot.img i got from somewhere in here. now it says security error and it does not boot. it does not enter into fasboot. i can enter into recovery mode but it is the stock lg recovery and if i choose "delete all data", which is the only option, it gives an error and restarts.
if i try to flash stock firmware as described in this post it stops at 49%.

kureta said:
twrp corrupted my cache partition and the phone could not boot. i tried to flash cwm while in twrp and i guess i messed up recovery and/or boot partitions. al i could get was fastboot. i flashed a boot.img i got from somewhere in here. now it says security error and it does not boot. it does not enter into fasboot. i can enter into recovery mode but it is the stock lg recovery and if i choose "delete all data", which is the only option, it gives an error and restarts.
if i try to flash stock firmware as described in this post it stops at 49%.
Click to expand...
Click to collapse
I am on the same boat, same problem, and don't know what else to do...hope someone could help us out.

Yep me to same issue. Pretty much tried 6 different methods and still stuck

Solution
IF you still have guys this issue i have solusion for you .
This happened to me yesterday too
1. Download ADB drivers for LG G2 LINK
2. Download LG Mobile Support Tool you can find this here LINK
3. HOLD VOLUMEUP + POWER button to enter the download mode and connect your device to pc
4. Run LG Mobile Support Tool ( if your device vas found click settings select upgrade firmware this will download for you 1.9 GB STOCK FIRMWARE
5. Enjoy your mobile

Any luck anyone? I can't get the suggestion in the last post to work because my phone just goes from the LG Logo to Security Error. I can't get to download mode. Or recovery. Or get ABD to see it.

Odd
quatrix1 said:
IF you still have guys this issue i have solusion for you .
This happened to me yesterday too
1. Download ADB drivers for LG G2 LINK
2. Download LG Mobile Support Tool you can find this here LINK
3. HOLD VOLUMEUP + POWER button to enter the download mode and connect your device to pc
4. Run LG Mobile Support Tool ( if your device vas found click settings select upgrade firmware this will download for you 1.9 GB STOCK FIRMWARE
5. Enjoy your mobile
Click to expand...
Click to collapse
i have to choose upgrade recovery and it gets past analyzing then doesnt show a bar for downloading software...

HELP!!!!!!!!!!!!!!!!!!!!!
Can someone help me I successful in installing twrp though autorec apk and the same for rooting my g2. I flashed cm with nightlies and noticed that twrp had a update. I downloaded the zip and try flashing it like flash a recovery in flashify but that din't work and readed that zip flashing though twrp didn't work but renumber this video and though it would update my recovery to 2.7.1 but it was successful in doing so but when I got to recovery it was 2.7.0. That not the problem form there I tried to boot into my system. Then it turn off though that I passed power off instead but when turn my g2 back on I found that I had a security error show up then turn back off. So can someone help show me a tutorial on unbick or a way to remove error. Also I have the d800 and i have some idea without going though unbicking a hard factory rest or flasing twrp form there site in fastboot. Finally that lg mobile support tool say that im up to date. I think doing the autorec twrp recovery locked as my phones recovery like trying to flash a rom with a locked bootloader.

Ok guys i trying to help cause it happen to me too,sorry for my english too slow but i try,when you try go twrp with volume up+power buttom it still show security errow,that ok your device not hardbrick yet,when you try volume down+power buttom it show hard reset it does mean it clear all rom,picture in internal but it go to twrp again,and them just flash another rom in your device and it done,have great day piece

I had the same problem on my G2 was using twrp to flash cyanogenmod not sure what i did and phone rebooted to show security error message. I entered recovery mode (power and volume down release when logo pops up and press power and volume down again hold for a second then tap both buttons a few times) pulled up the option to factory reset so i did and it booted me into twrp and allowed me to flash cyanogenmod correctly this time and the phone started back up with no problems. hope this can help someone else as well.

Anybody know the solution?
I also have the security error boot loop after flashing KK baseband files... I tried to enter recovery mode by holding vol down & power button but it wont work...
it does work when i enter download mode (vol up + power button), but i don't want to have to download the stock LG ROM..
anybody know how to by pass the security error boot loop to allow me to reflash?

kureta said:
did you solve your problem? i have a similar problem and i just bricked an s3. this g2 is brand new and now it's bricked too! if you have found a solution please respond... :crying:
Click to expand...
Click to collapse
if you still bricked. try this
get your tools from here: http://forum.xda-developers.com/showthread.php?t=2432476
keep reading or follow above thread. both will work.
best of luck.
After all the drivers installed correctly
make sure your phone is connected to the
com41 port change it if it already not ( Under device manager > Go to Ports (COM & LPT). You should see LGE AndroidNet etc... Right click it and go to Properties > Port Settings > Advanced > Change COM Port Number to COM41 > OK > OK > Close Device Manager )
run flash tool
1. choose type CDMA
2. chose PhoneMode: DIAG
leave rest as it is.
3. choose your kdz file.
then go to download mode
1. power off
2. press and hold vol + key and plug usb cable
3. done )
We have go 2 flashing modes.
1. Normal Flash is for flash with keeping data
2. CSE flash is totally new start preffered.
hope this helps.

thanks but it was a long time ago and I further messed up things, ended up sending it for warranty. they have replaced the device.

me too messed up my cell 1st i was on cloudy g2 v2.1 installed cm11 nightlies but the camera was not so good so then installed cloudy g2 v2.1 n since then i was having problem regarding sound during call and also some hard noise like siren starts randomly, i searched alot but didnt got any solution. wiped all many times (including internal storage ). but no luck then i thought i might be baseband error so i just downloaded auto recovery n flashed it n then stuck into security error but thank GOD i had custom rom in my sd card that time i flashed it back but still em having the sound error.

lastdeadmouse said:
Ok, so I flashed cleanrom ex, and on reboot I got a security error.
I tried to get to recovery, but it wipes data and immediately reboots.
I've tried flashing the stock rom, but lg flash tool tells me it's the wrong device (now thinks it's a D802).
I've been trying to get into TWRP on scrosler and samsunggalaxystig's advice, first by repeatedly trying an adb reboot recovery, then by writing a batch script to do it repeatedly in order to catch it before it reboots.
Problem is, I don't know if I had already had ADB drivers installed on this computer for the G2 (had rooted while at work), and despite installing them more than once, I don't think the device actually has enough time to be recognized as I still have an unrecognized "g2" in device manager while TWRP is wiping.
Any ideas? Is there any way I can force the install of the ADB driver without having it connected for more than 20 seconds? Spitballing... would it be possible to actually flash a D802 image so I could then root, change the build.prop to D800, and then flash the D800 image?
Totally at a loss at this point.
Click to expand...
Click to collapse
kureta said:
did you solve your problem? i have a similar problem and i just bricked an s3. this g2 is brand new and now it's bricked too! if you have found a solution please respond... :crying:
Click to expand...
Click to collapse
k2thejx5 said:
Yep me to same issue. Pretty much tried 6 different methods and still stuck
Click to expand...
Click to collapse
Hey guys, I was in the same boat for a little but was able to fix it by downloading the 801C firmware and flashing it. The firmware file should be a KDZ extension and you should also download LG Flash Tool 2014. Turn the phone on by holding the Power button and Volum up while it is plugged into your computer(It has to be plugged into a computer with LG phone drivers or it won't work).
Follow this tutorial and you will be set.
http://www.droidviews.com/how-to-restore-lg-g2-to-stock-firmware/
Start at step 17 on Method 1 and you should be golden.
Hope this helps guys!

Related

LG G2 F320L stuck in Boot Loop not going in download mode

hi guys,
i flashed recovery using the manual method from this thread http://forum.xda-developers.com/showthread.php?t=2468858.
I wasn't able to use the last command
Code:
rm /sdcard/g2_security
I thought it didn't work , i also updated the my phone software.
When my phone restarted it went to cwm and now its stuck there.
Now when I try to boot I can either get in CWM or some Korean Recovery Menu with three option (i tried all nothing happend) or just stuck in boot loop!
I can't get in download mode by pressing vol up and plugging usb cable (tried all possible methods)
I will be glad if someone can help me out.
Thanks in advance
That's an unexpected situation to say the least.
So in short: installation of recovery worked, but you lost access to your ROM.
Correct?
Now, if you had a flashable ROM on your sd card you would be sorted, no?
I would say, get any compatible ROM, put them on a micro sd card and plug them into your phone. Flash through cwm...
Am I misunderstanding?
Otherwise there is always the fully back to stock option:
http://forum.xda-developers.com/showthread.php?t=2475045
Zentac said:
That's an unexpected situation to say the least.
So in short: installation of recovery worked, but you lost access to your ROM.
Correct?
Now, if you had a flashable ROM on your sd card you would be sorted, no?
I would say, get any compatible ROM, put them on a micro sd card and plug them into your phone. Flash through cwm...
Am I misunderstanding?
Otherwise there is always the fully back to stock option:
http://forum.xda-developers.com/showthread.php?t=2475045
Click to expand...
Click to collapse
I was able to fix my phone using this thread. I was able to get in recovery but not in download mode. After executing these commands I flashed stock firmware through LG flashing tools.
aatish said:
hi guys,
i flashed recovery using the manual method from this thread http://forum.xda-developers.com/showthread.php?t=2468858.
I wasn't able to use the last command
Code:
rm /sdcard/g2_security
I thought it didn't work , i also updated the my phone software.
When my phone restarted it went to cwm and now its stuck there.
Now when I try to boot I can either get in CWM or some Korean Recovery Menu with three option (i tried all nothing happend) or just stuck in boot loop!
I can't get in download mode by pressing vol up and plugging usb cable (tried all possible methods)
I will be glad if someone can help me out.
Thanks in advance
Click to expand...
Click to collapse
The same exact thing happed to me. did u fix it, if yes can you please tell me how??
I have the same issue. Nothing mentioned in other threads is useful just because I CAN'T ENTER DOWNLOAD MODE. Totally stuck Help! Devs! Anyone!
Try installing some custom rom from recovery...after installing custom rom you can enter into download mode and do whatever u want...return to stock using kdz files or anything else..

[Q] LG G2 - Fastboot mode started udc_start

Hello everybody,
Last night i recieve update for my lg g2 d802 ( update to D80210c)
I downloaded and click install button on update. Phone rebooted and opened twrp. I had rooted device with twrp . After that i couldnt start phone OS, just starting twrp again and again . After that i click on restore to backup nandroid backup i have. It restored backup and than reboot system . After that i have just few words in top left angle :
450 Fastboot mode started
500 udc_started()
After i connect my usb cable have few more :
450 Fastboot mode started
500 udc_started()
660 -reset-
670 -portchange-
740 fastboot; processing commands
What should i do now, is this device completly bricked?
djordjesl said:
Hello everybody,
Last night i recieve update for my lg g2 d802 ( update to D80210c)
I downloaded and click install button on update. Phone rebooted and opened twrp. I had rooted device with twrp . After that i couldnt start phone OS, just starting twrp again and again . After that i click on restore to backup nandroid backup i have. It restored backup and than reboot system . After that i have just few words in top left angle :
450 Fastboot mode started
500 udc_started()
After i connect my usb cable have few more :
450 Fastboot mode started
500 udc_started()
660 -reset-
670 -portchange-
740 fastboot; processing commands
What should i do now, is this device completly bricked?
Click to expand...
Click to collapse
Good to know i wasn't the only one
Im just able to start researching now, i'll update if i find anything, but i assume there's some kind of command that can be given via adb to disable the fastboot and allow the phone os to resume functioning, as my logic indicates since the restore worked for you, your phone is now simply at a point with no attempted update. i did the same process of clicking reboot, twrp looping, restored a backup and twrp still looping
EDIT: Pretty sure it's going to be a flag in a flat file. Combing over my init.rc file now, and i found a strange file called smpl_boot with a single 0 in it, not sure what it does
BStinsonWhadup said:
Good to know i wasn't the only one
Im just able to start researching now, i'll update if i find anything, but i assume there's some kind of command that can be given via adb to disable the fastboot and allow the phone os to resume functioning, as my logic indicates since the restore worked for you, your phone is now simply at a point with no attempted update. i did the same process of clicking reboot, twrp looping, restored a backup and twrp still looping
Click to expand...
Click to collapse
Can you enter Download Mode? (Holding volume down when G2 is turned off and plug the USB)
I also experienced this when restore using TWRP. But fortunately I can flash back to stock.
BStinsonWhadup said:
Good to know i wasn't the only one
Im just able to start researching now, i'll update if i find anything, but i assume there's some kind of command that can be given via adb to disable the fastboot and allow the phone os to resume functioning, as my logic indicates since the restore worked for you, your phone is now simply at a point with no attempted update. i did the same process of clicking reboot, twrp looping, restored a backup and twrp still looping
Click to expand...
Click to collapse
I think you dont understand me, when i did restore twrp shows that restore was completed, and when i do a reboot it shows
450 Fastboot mode started
500 udc_started()
Now i cant do nothing with phone, i try to power off and turn on it just go to
450 Fastboot mode started
500 udc_started()
djordjesl said:
I think you dont understand me, when i did restore twrp shows that restore was completed, and when i do a reboot it shows
450 Fastboot mode started
500 udc_started()
Now i cant do nothing with phone, i try to power off and turn on it just go to
450 Fastboot mode started
500 udc_started()
Click to expand...
Click to collapse
ahh i misread your post thinking you somehow had status messages on your screen during boot and that you got into TWRP each time. the question above this post asking about download mode may help you
BStinsonWhadup said:
ahh i misread your post thinking you somehow had status messages on your screen during boot and that you got into TWRP each time. the question above this post asking about download mode may help you
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2451696
specifically:
adb shell
dd if=/dev/block/platform/msm_sdcc.1/by-name/fota of=/sdcard/fota-backup.img
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
fixed it for me for anyone finding this post that CAN get to TWRP, the above linked post has other hints as well that may work for OP
I got this same thing when I tried to update TWRP using flashify, I can reboot to phone , running CleanRom 2.0 but not to recovery in order to flash other stuff.
ossito2012 said:
I got this same thing when I tried to update TWRP using flashify, I can reboot to phone , running CleanRom 2.0 but not to recovery in order to flash other stuff.
Click to expand...
Click to collapse
I somehow managed to do this as well. Did you get yours working again?
Edit: Fixed it up with this APP (Note that 3 other similar apps did NOT work): https://play.google.com/store/apps/d...l.freegee_free
Yozzo1 said:
Hello everybody,
Last night i recieve update for my lg g2 d802 ( update to D80210c)
I downloaded and click install button on update. Phone rebooted and opened twrp. I had rooted device with twrp . After that i couldnt start phone OS, just starting twrp again and again . After that i click on restore to backup nandroid backup i have. It restored backup and than reboot system . After that i have just few words in top left angle :
450 Fastboot mode started
500 udc_started()
After i connect my usb cable have few more :
450 Fastboot mode started
500 udc_started()
660 -reset-
670 -portchange-
740 fastboot; processing commands
What should i do now, is this device completly bricked?
Click to expand...
Click to collapse
My situation is a little different than yours, but you may be able to do this method (which is what I am working on at the moment). As long as you can get into download mode.
http://forum.xda-developers.com/showthread.php?t=2432476
help !!
Hi, sorry for my english , I'm french
I wanted to flash a custom rom on my LG G2 D802 .
I wanted the Paranoid Android (PA +) with 4.3 JellyBean .
So I made the
Backup
Wipe data / factory reset
Wipe cache partition
Wipe dalvik Cache
After I
Choose zip ( custom ROM ) from sd card
Then I
Reboot System Now
And turn on my laptop, I get an error message saying
[640 ] started Fastboot Mode
[ 690] udc start ()
I realized I had to flash AOSP kernel before changing to a ROM paranoid . But my kernel is blocked and so I have to go back to the stock ROM
When I did this tutorial using lg tools , flashing stops at 49% with an error message .
I also saw that I could access the recovery mod by following this link http://forum.xda-developers.com/show....php?t=2565904(but I saw that I could not otherwise reboot my phone after it was bricking ) and therefore flash my stock Rom which I had made the backup . But I do not know if the ROM has been saved and if it remained in my files after the Wipes.
If it is not there, is that in buying a micro USB ====> HUSB adapter, I could install a stock ROM from a USB key ? Or is there a way I can put files from my computer to my laptop which has no port micro sd?
And is what I could with my kernel "blocked " ?
Thank you very much
Same problem here too. Can't get a recovery installed no matter what i do
Does anyone have a solution yet?? Same thing has happened to me.
If you can't go into download mode but get fastboot mode instead first repair download mode using http://forum.xda-developers.com/showthread.php?t=2477595 and than flash back to stock 4.2.2 using http://forum.xda-developers.com/showthread.php?t=2432476
My G2 can not go into download mode and recover mode, and my computer can not recognise it so I can not put anything to it.
fast boot
udc error.
CAN SOMEBODY
EXPLAIN IN SIMPLE WAY STEP BY STEP.
Thank you
Had this exact error too, fortunately flashing furnace kernel fixed it.
Tahir, I had to try several times until i succeed to boot to my recovery mode, try several times.
was having this issue. but i figured out my problem. the rom i was installing was a note3 rom. hahahaha. thats what happens when u have too many phones. and files in your computer. anyways.
i ddnt have to revert back to stock. i was able to reboot to twrp via hold power button and volume down buttons, when lg pops up, let go and press and hold both buttons again. when white screen with words comes up, press power then power then power. then ur back to twrp, at least mine did. and restored my recent back up.
nimrodsv said:
Had this exact error too, fortunately flashing furnace kernel fixed it.
Tahir, I had to try several times until i succeed to boot to my recovery mode, try several times.
Click to expand...
Click to collapse
How did you flash the kernel if you couldn't get into recovery?
I have download mode, but lg support tool only goes to 49% and I get error.
Would like to flash this kernel if you have another way
rodpgfx said:
How did you flash the kernel if you couldn't get into recovery?
I have download mode, but lg support tool only goes to 49% and I get error.
Would like to flash this kernel if you have another way
Click to expand...
Click to collapse
I could, after 5-6 times pressing Vol Down + Power method
nimrodsv said:
I could, after 5-6 times pressing Vol Down + Power method
Click to expand...
Click to collapse
I have similar issue after trying to install Xdabbed Camera on my LG G2 running with ClaudyG3 ROM.
I have flashed the Xdabbed Camera zip file sucessfully via TWRP 2.7.0.0 but when I reboot the phone after successful flashing the phone went into Fastboot Mode and UDC as mentioned above. Can my phone back again to recovery mode? I have backup ready, but only can restore if I can go into recovery TWRP...please help
epwt said:
I have similar issue after trying to install Xdabbed Camera on my LG G2 running with ClaudyG3 ROM.
I have flashed the Xdabbed Camera zip file sucessfully via TWRP 2.7.0.0 but when I reboot the phone after successful flashing the phone went into Fastboot Mode and UDC as mentioned above. Can my phone back again to recovery mode? I have backup ready, but only can restore if I can go into recovery TWRP...please help
Click to expand...
Click to collapse
Try booting to recovery after you charge your phone for at least one hour and while it's NOT CONNECTED to the computer
If that's doesn't help try using ADB

[Q] Help with bricked g2

I'm sorry if there is a post for this already, I have been using this website for a while and until now never had to post because all my questions were answered. This time I am not able to find an answer or even a thread with the same circumstances as mine. I rooted and installed a custom rom but didn't like it. I tried going back to stock but accidentally wiped the phone so the backups and the roms were gone. I had TWRP installed but it wouldn't allow me to sideload via adb and when I tried to enter download mode, it would enter it but go to a screen that just said firmware update and stayed stuck on there. So I went out and bought a OTG usb cable to read the rom off a flash drive and I installed it but now instead of going to recovery it goes to a black screen that just says fastboot mode udc start. Download mode still does the same firmware update screen. Any help would be appreciated, thank you.
What rom did you try to install what software version were you on
Sent from my VS980 4G using Tapatalk
spinninbsod said:
What rom did you try to install what software version were you on
Sent from my VS980 4G using Tapatalk
Click to expand...
Click to collapse
I'm on the latest software and I tried to put the newest stock I could find but honestly I might've made a mistake since my PC is loaded with different roms and files from all kinds of phones and software versions.
same problem here,,, i was going to open a thread but i jumped on this one. Let me explain what i did,
i was running ls980 zv8 clodyflex 1.4 jellybean and i went to recovery TWRP wiped everything exept internal storage flashed kk baseband and ZVA radio then flashed cloudyflex 2.2 and rebooted and phone went to the same screen as the owner of this thread: fastboot mode udc start and i cant get in to recovery to restore my backup. Ive tried lg tools method to flash a tot firmware but even having all drivers it doesnt happend, i tried fastboot method with command prompt to flash recovery twrp again and no luck either, i ran out of options here but there is gotta be a solution for this PLEASE HEEELP!
smallyetzon said:
same problem here,,, i was going to open a thread but i jumped on this one. Let me explain what i did,
i was running ls980 zv8 clodyflex 1.4 jellybean and i went to recovery TWRP wiped everything exept internal storage flashed kk baseband and ZVA radio then flashed cloudyflex 2.2 and rebooted and phone went to the same screen as the owner of this thread: fastboot mode udc start and i cant get in to recovery to restore my backup. Ive tried lg tools method to flash a tot firmware but even having all drivers it doesnt happend, i tried fastboot method with command prompt to flash recovery twrp again and no luck either, i ran out of options here but there is gotta be a solution for this PLEASE HEEELP!
Click to expand...
Click to collapse
I just saw this. I have done the same thing. But I have been able to recover with TOT file. The trick to enter download mode is to hold the volume up button when you power on the phone. If you can get the phone to stay off, then hold volume up, while holding vol up plug in your data cable. You should get DL mode. If you do this while the LG Flash Tool is open, then go to control panel and find the COM port for the LG phone, open properties and advanced, change the COM port to COM41. Once that is done, also once the flash tool files are loaded and the COM41 box says ready, unplug your phone then replug your phone. You may have to also hold volume down here, I can't remember. But the first time is to let the drivers configure. The second time lets the flash tool see the COM port and it should start flashing. It will get around 80% and reboot. The flash is done and the tool will eventually report an error.
I installed the KK baseband as instructed, even also came from the stock ZVC update, rooted via IORoot25. It's a shame as I've heard great things about this ROM.
Hope that helps.
[FIX] NO Recovery mode, No download mode, after OTA on rooted LG G2
I know you guys didn't brick doing the OTA, but it might help: [FIX] NO Recovery mode, No download mode, after OTA on rooted LG G2
I was in the IRC channel when it happened, hehehe...
Good luck!
Compass.

BOOTLOOP/Brick LG G2 (D802)

So here's what happened i was flashing the LLAMA Sweet Kernel for my D802 from RenderKernel (KK Bootsack loki signed, KK Bootloader) then i got stuck on LG Logo at first i thought it was fine but it hasn't move for like 30 mins. Then i tried to reboot and enter recovery mode. I can't enter recovery mode i tried it several times turned off first then Volume Down + Power button its not working anymore. But i can access DOWNLOAD MODE which is good i think.
Can someone please help me sort this thing out i just need to have TWRP recovery and i can handle the rest. How could i flash it using download mode. Thank you guys
LG G2 D802
16GB Version
Euphoria ROM
LLAMA Sweet Kernel
Try installing the stock LG Mobile Support Tool and USB drivers.
Open the support tool program, connect the phone in download mode, click on "Options" in the top right-hand corner, select upgrade recovery, and, hopefully, the program will download and install the correct firmware for your phone.
audit13 said:
Try installing the stock LG Mobile Support Tool and USB drivers.
Open the support tool program, connect the phone in download mode, click on "Options" in the top right-hand corner, select upgrade recovery, and, hopefully, the program will download and install the correct firmware for your phone.
Click to expand...
Click to collapse
Will this one completely delete everything? Or change the current ROM i've been using // Will this one also delete media files photos/music etc?
Is there any way that i can just flash TWRP on download mode so that i will just flash bootloader/bootstack or kernel thats causing this bootloop/brick.
Thanks
Yes, it will wipe everything.
audit13 said:
Yes, it will wipe everything.
Click to expand...
Click to collapse
So There's no other way to save my media files. i mean there's no other way to flash any recovery to my phone even though i can access download mode? Is that it sir?
have you tried re flashing twrp?
How can i re-flash it? ROM not loading stuck on Boot Logo, can't go to recovery. Only download mode working i already installed drivers and its been detected. I just dont know if there's a way to flash twrp on download mode.
I read some posts where it will delete data, others say it won't. I would just assume that flashing stock would return to stock and delete data.
Not sure how to flash twrp from download mode.

[solved!] Used ODIN to install twrp but phone won't boot into recovery at all

Problem solved! i was installing the wrong version of twrp this is the correct version: https://eu.dl.twrp.me/j5xnlte/
I'm using SM-J510H
So I installed samsung drivers.
I even installed ADB and it's drivers (now i have samsung android in the device manager)
I downloaded TWRP for j53gxx:
https://eu.dl.twrp.me/j53gxx/
The .tar for odin (twrp-3.4.0-0-j53gxx.img.tar)
I did the OEM unlock and debugging thing I even got the notification that the computer was trying to access blah blah I did allow always.
Put the phone in download mode (Down + Home + Power)
Press up to enter download mode.
Connect the phone.
Untick reboot in odin.
Use the ap to select the correct file
Start success!
I try to reload into recovery tried so many different ways even the adb command to reboot into recovery. All I get is a little thing on the top left saying warranty bit recovery and then the screen is black.
It doesn't load into the default recovery it just stays black. I need to take the battery to rest...
I tried with adb but when i force it to load up into download mode (adb reboot bootloader)
adb doesn't recognize the phone anymore
I've now downloaded the android ask maybe that will solve things lol but does anyone have any advice please?
Should I consider installing a different recovery? like maybe CWM?
It has a costume rom on i guess it says "Hebrew by daniel mouyal for bt" in the about tab in the settings...
I tried using ADB to install but when it's in download mod it can't find the phone so when i enter the install command:"fastboot flash recovery twrp-2.8.x.x-xxx.img" it says: "waiting for device"
Well I've been installing the wrong version of twrp lol sry!
So just in case someone else hits the same problem it's not the twrp i posted before but this one:
https://eu.dl.twrp.me/j5xnlte/
When recovery is finished flashing in Odin, remove your battery to turn the device off.
Then put the battery back in and press vol+ and power button and home button at the same time.
Your device should then boot into twrp.
If you reboot before doing this the android operating system will ovewrite twrp with stock recovery and you will have to start the process again
Also you used the wrong twrp. J53gxx is 2015 model j500h and j5xnlte is j510fn not j510h. You must be careful or else you may seriously damage your device.
Use this twrp here for your device j510h
garylawwd said:
When recovery is finished flashing in Odin, remove your battery to turn the device off.
Then put the battery back in and press vol+ and power button and home button at the same time.
Your device should then boot into twrp.
If you reboot before doing this the android operating system will ovewrite twrp with stock recovery and you will have to start the process again
Also you used the wrong twrp. J53gxx is 2015 model j500h and j5xnlte is j510fn not j510h. You must be careful or else you may seriously damage your device.
Use this twrp here for your device j510h
Click to expand...
Click to collapse
Thank you for the response!
I managed to figure out the issue it was the wrong twrp version.. I can't update the title though
That's no problem.
What I would suggest though is to post how you fixed your issue in case anyone has problems in the future they can be referred to your thread here
garylawwd said:
That's no problem.
What I would suggest though is to post how you fixed your issue in case anyone has problems in the future they can be referred to your thread here
Click to expand...
Click to collapse
I did in my second post I posted the correct link to the correct version of twrp
I'll edit it so it's more visible

Categories

Resources