LG G2 Boot security error after trying to flash SuperSu after going to LineageOS 14.1 - G2 Q&A, Help & Troubleshooting

I've been using Cyanogenmod 13.1 (rooted) and I decided to flash a ROM with Nougat. I flashed lineage-14.1-20170320-nightly-d802-signed and open_gapps-arm-7.1-mini-20170325 and everything worked fine except I didn't have SuperSU. I tried flashing SuperSU-v2.79-201612051815 and when I tried to boot into system I got this screen (with the LG logo below) http://i.imgur.com/O7vOtab.png I tried many methods like this https://forum.xda-developers.com/showthread.php?t=2582142 and this https://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404 to no avail. In Linux when I used the ls /dev/sd* command in the terminal the phone wouldn't show up and later in Windows I got the PC to recognize the phone as Marshall USB Composite Device 9006 http://i.imgur.com/a5WHV9P.png and in Disk Management the phone partition shows up un-initialised http://i.imgur.com/XaVKIu7.png . Help I don't know what to do now. Tell me if I should provide more information.

I had the exact same problem. Then i found a solution. Just dont flash the normal Supersu, you need to flash the Supersu BUMPED file. Just go in recovery, press 10 sec the power button to be sure the phone is off, then hold volume down and power button until the logo appears, then release and press again (fast) then choose yes, yes. Just flash the Bumped and if recovery asks to do root choose NO.
The Bumped which worked for me
http://www108.zippyshare.com/v/ZjxTLdkp/file.html
I hope i could help

RelaxBuddy said:
I had the exact same problem. Then i found a solution. Just dont flash the normal Supersu, you need to flash the Supersu BUMPED file. Just go in recovery, press 10 sec the power button to be sure the phone is off, then hold volume down and power button until the logo appears, then release and press again (fast) then choose yes, yes. Just flash the Bumped and if recovery asks to do root choose NO.
The Bumped which worked for me
I hope i could help
Click to expand...
Click to collapse
Well I had no luck getting into recovery before but that was before I took apart my phone because I couldn't turn it off (it keeped bootlooping) but I will try, thanks

Bluellama said:
Well I had no luck getting into recovery before but that was before I took apart my phone because I couldn't turn it off (it keeped bootlooping) but I will try, thanks
Click to expand...
Click to collapse
Yeah Bad same Problem, turned off and it went on, then again bootloop. But if you press the power button long enough then its completely off. In cyanogen mod i had Problem that i couldnt get into recovery with power button+volume down.
So you should flash kdz, get oneclickroot for LG g2, then autorec lollipop to get recovery. Then flash Rom + gapps + The bumped file.
If you dont know how to flash kdz, you can ask here. I will help
Good luck

RelaxBuddy said:
Yeah Bad same Problem, turned off and it went on, then again bootloop. But if you press the power button long enough then its completely off. In cyanogen mod i had Problem that i couldnt get into recovery with power button+volume down.
So you should flash kdz, get oneclickroot for LG g2, then autorec lollipop to get recovery. Then flash Rom + gapps + The bumped file.
If you dont know how to flash kdz, you can ask here. I will help
Good luck
Click to expand...
Click to collapse
Previously I couldn't go into download mode but I will try now since I managed to turn off the smartphone completely. Before it would just stay on with a black screen.

Bluellama said:
Previously I couldn't go into download mode but I will try now since I managed to turn off the smartphone completely. Before it would just stay on with a black screen.
Click to expand...
Click to collapse
Yeah Ok. When I wanted to turn It off, I just pressed the power button until the screen went black and the logo came again but after 2-3 sec the screen went black again, then it was off (just hold power button for 10sec)
Try that when your phone keeps restarting

RelaxBuddy said:
Yeah Ok. When I wanted to turn It off, I just pressed the power button until the screen went black and the logo came again but after 2-3 sec the screen went black again, then it was off (just hold power button for 10sec)
Try that when your phone keeps restarting
Click to expand...
Click to collapse
KDZ flashing gets stuck at 60% (Verifying phone connection) http://i.imgur.com/AAHKqcd.png
Should I just let it sit through its emotional problems?

Bluellama said:
KDZ flashing gets stuck at 60% (Verifying phone connection) http://i.imgur.com/AAHKqcd.png
Should I just let it sit through its emotional problems?
Click to expand...
Click to collapse
Get the lg mobile support tool, install it. Then open and connect your phone via download mode, it will find the phone and download the kdz for it. That should work.
If it doesn't install automatically, click on additional options then click on set upgrade error back, or something like that.
Before all that install the driver from
http://www.lg.com/de/support/service-mobil-telefon/lg-G2
Then you can start with lg mobile support tool

RelaxBuddy said:
Get the lg mobile support tool, install it. Then open and connect your phone via download mode, it will find the phone and download the kdz for it. That should work.
If it doesn't install automatically, click on additional options then click on set upgrade error back, or something like that.
Before all that install the driver from
http://www.lg.com/de/support/service-mobil-telefon/lg-G2
Then you can start with lg mobile support tool
Click to expand...
Click to collapse
Ok I managed to flash a stock rom and the problem was... usb 3.0. I connected the phone to usb 2 and it worked flawlessly. If anybody has a problem like I did you can message me

Related

[Q] Bricked lgp700 after flashing cm 11.0

Hello,
I am very new to rooting etc. I rooted my phone a few days ago, unlocked bootloader and tried to flash cm11.0 with rom manager (cwmg) following this link:
http://forum.xda-developers.com/showthread.php?t=2521239
Unfortunately I didn´t understand the instructions well, so after wiping caches, instead of doing a full format I did a user data etc format (which i now think was a factory reset). Tried flashing, didn´t succeed.
Anyway, when I try to switch it on I only get the lg logo and then the batery charging thingy When I try to go to recovery mode with volume up power and menu button, my phone goes on a loop of lg and cyanomod logos untill infinity ( Have to take off the battery). Tried to use heimdall (as i have a mac) to flash kdz back to it, but phone was not recognized. On my pc tried the same, but again phone not seen. I can see it on my computer as an unrecognized external usb but cannot explore. Any ideas on what to do??
thanks in advance
franky.frangi said:
Hello,
I am very new to rooting etc. I rooted my phone a few days ago, unlocked bootloader and tried to flash cm11.0 with rom manager (cwmg) following this link:
http://forum.xda-developers.com/showthread.php?t=2521239
Unfortunately I didn´t understand the instructions well, so after wiping caches, instead of doing a full format I did a user data etc format (which i now think was a factory reset). Tried flashing, didn´t succeed.
Anyway, when I try to switch it on I only get the lg logo and then the batery charging thingy When I try to go to recovery mode with volume up power and menu button, my phone goes on a loop of lg and cyanomod logos untill infinity ( Have to take off the battery). Tried to use heimdall (as i have a mac) to flash kdz back to it, but phone was not recognized. On my pc tried the same, but again phone not seen. I can see it on my computer as an unrecognized external usb but cannot explore. Any ideas on what to do??
thanks in advance
Click to expand...
Click to collapse
power off your device.
long press
1) "vol -"
2) home button
3) power button
for some second
are you able to enter in recovery?
lferlito said:
power off your device.
long press
1) "vol -"
2) home button
3) power button
for some second
are you able to enter in recovery?
Click to expand...
Click to collapse
No, it goes into logos loop.
franky.frangi said:
No, it goes into logos loop.
Click to expand...
Click to collapse
i don't know, man
but for the future, before installing a custom rom
remember to install a recovery
it's very important
hope someone better than me will help you
:fingers-crossed:
lferlito said:
i don't know, man
but for the future, before installing a custom rom
remember to install a recovery
it's very important
hope someone better than me will help you
:fingers-crossed:
Click to expand...
Click to collapse
But I did, throught clockworkmod (first thing I did) ....and also did a nandroid backup...just don´t know how to access them...
franky.frangi said:
But I did, throught clockworkmod (first thing I did) ....and also did a nandroid backup...just don´t know how to access them...
Click to expand...
Click to collapse
on my L5, i long press those 3 buttons until LG logo boot appears..
i wait some second and it appears the CWM reco
i don't know if there are other ways to enter in recovery mode..
yeah me neither.mine used to do the same before the flashing.thanks thought.lets see if someone has another idea...
franky.frangi said:
yeah me neither.mine used to do the same before the flashing.thanks thought.lets see if someone has another idea...
Click to expand...
Click to collapse
As soon as you plug your USB into your phone, hold down the volume up (+) button and the power button and release them after holding them down for about 2 to 3 seconds. Then, install the USB driver for your phone with the LG Mobile Support Tool. Secondly, download and install the LG PC Suite program and last but not least, download the KDZ program. Install the correct firmware for your phone and make sure you select 'EMERGENCY' from the list on the top right of the KDZ program. Select your downloaded firmware file and start the program. If everything worked out, the program should crash after it's done and your phone should reboot. Disconnect your phone from the computer if it doesn't reboot and try to boot it up again.
You can find all of these programs along with tutorials on how they work by searching on either XDA or Google.
did forcing recovery/download work ?
TahaX said:
As soon as you plug your USB into your phone, hold down the volume up (+) button and the power button and release them after holding them down for about 2 to 3 seconds. Then, install the USB driver for your phone with the LG Mobile Support Tool. Secondly, download and install the LG PC Suite program and last but not least, download the KDZ program. Install the correct firmware for your phone and make sure you select 'EMERGENCY' from the list on the top right of the KDZ program. Select your downloaded firmware file and start the program. If everything worked out, the program should crash after it's done and your phone should reboot. Disconnect your phone from the computer if it doesn't reboot and try to boot it up again.
You can find all of these programs along with tutorials on how they work by searching on either XDA or Google.
Click to expand...
Click to collapse
the phone off usb in and buttons did it work ?
Actually didn´t work,I have drivers already, LG PC Suite program , and KDZ. Problem is my phone is not detected by pc, so kdz unzips and then says : phone not detected, with or without battery...doesn´t go into recovery mode with buttons, just lg and cyanomod logos...
I don`t know if this can b fixed.....How can you flash anything if it´s not detected....
I´ll give it a try again tomorrow, without trying to enter recovery mode....but tried lots of buttons combinations and wasn´t working
Press these buttons
volume +
,volume -
home button
together with the power button
release all buttons except power button when you get a vibration
release the power button immediately after the lg logo has appered
this should let you get in the recovery menu
FULL STEP BY STEP GUIDE
found http://forum.xda-developers.com/showthread.php?t=2486512
IGGYVIP said:
Press these buttons
volume +
,volume -
home button
together with the power button
release all buttons except power button when you get a vibration
release the power button immediately after the lg logo has appered
this should let you get in the recovery menu
FULL STEP BY STEP GUIDE
found http://forum.xda-developers.com/showthread.php?t=2486512
Click to expand...
Click to collapse
Finally!! This worked....I can get in the recovery menu!!!
Before I do anything I´ll really think about what rom I want to use )
Thanks lot everyone...hope it gives me no more issues.
franky.frangi said:
Finally!! This worked....I can get in the recovery menu!!!
Before I do anything I´ll really think about what rom I want to use )
Thanks lot everyone...hope it gives me no more issues.
Click to expand...
Click to collapse
happy flashing

[Q] LG G2 bootloop, No recovery mode, only download mode

Hi guys, (LG G2, Rooted, had twrp but now its vanished?!)
I managed to get my LG G2 into a bootloop. I was replacing bootanimations and rebooting and testing them out. I finally tried this 1080p boot animation that looked sweet. Once the device rebooted it would show half the boot animation and then reboot. I had twrp installed but now every time i try to access it it just ignores the hotkeys as if it doesn't exist anymore. I can only get into download mode if a usb is plugged in.
All i need to do is flash TWRP again so i can flash the stock bootanimation back. I do not want to do a fresh install as I have many important files (i know i should have backed them up). I have tried to access my phone via adb using windows commandline tool whilst in download mode. however, adb doesn't find my device (I was going to attempt to push the stock animation back).
Please help me guys i need my phone to be working by monday as i have work! thanks in advance
SPBoss said:
Hi guys, (LG G2, Rooted, had twrp but now its vanished?!)
I managed to get my LG G2 into a bootloop. I was replacing bootanimations and rebooting and testing them out. I finally tried this 1080p boot animation that looked sweet. Once the device rebooted it would show half the boot animation and then reboot. I had twrp installed but now every time i try to access it it just ignores the hotkeys as if it doesn't exist anymore. I can only get into download mode if a usb is plugged in.
All i need to do is flash TWRP again so i can flash the stock bootanimation back. I do not want to do a fresh install as I have many important files (i know i should have backed them up). I have tried to access my phone via adb using windows commandline tool whilst in download mode. however, adb doesn't find my device (I was going to attempt to push the stock animation back).
Please help me guys i need my phone to be working by monday as i have work! thanks in advance
Click to expand...
Click to collapse
1. If you connect your phone to PC, what happens?
2. I also had trouble accessing TWRP, so I did the "Factory reset" button combo (Don't remember what it was) and when I slided to confirm, twrp booted. From there I think you have adb and can fix everything.
To get to TWRP, hold the power button until the phone turns completely off, then turn on the phone while holding the power and volume down buttons, then when the LG logo pops up, let go and re-press those buttons. When prompted for a factory reset, press the power button. Works every time for me.
Alone i used lg flashtoolnow,its ok. I didnt click factory reset i assumed it would delete everything? With lgflash i have restored system and everything is how i left it.
Sent from my LG-D802 using Tapatalk
alone-together said:
To get to TWRP, hold the power button until the phone turns completely off, then turn on the phone while holding the power and volume down buttons, then when the LG logo pops up, let go and re-press those buttons. When prompted for a factory reset, press the power button. Works every time for me.
Click to expand...
Click to collapse
worked like a charm, many thanks!
alone-together said:
To get to TWRP, hold the power button until the phone turns completely off, then turn on the phone while holding the power and volume down buttons, then when the LG logo pops up, let go and re-press those buttons. When prompted for a factory reset, press the power button. Works every time for me.
Click to expand...
Click to collapse
i cannot enter the download mode and the recov mode. I pressed it as your instruction said, but nothing happened.. what should i do ?
All the application force close, so i cannot enter the OS either..
xzork said:
i cannot enter the download mode and the recov mode. I pressed it as your instruction said, but nothing happened.. what should i do ?
All the application force close, so i cannot enter the OS either..
Click to expand...
Click to collapse
First off, you'll need to make sure your phone isn't plugged in or it won't work - I'm afraid if you can't enter recovery you'll have to go back to stock. http://forum.xda-developers.com/showthread.php?t=2432476
Sucess
alone-together said:
To get to TWRP, hold the power button until the phone turns completely off, then turn on the phone while holding the power and volume down buttons, then when the LG logo pops up, let go and re-press those buttons. When prompted for a factory reset, press the power button. Works every time for me.
Click to expand...
Click to collapse
Thank you, saved me day.
dear sir good evening sir plz plz help me my LG G2 is not working. still only black screen and show lg logo sir plz help me:crying:
PUNNU NAGI said:
dear sir good evening sir plz plz help me my LG G2 is not working. still only black screen and show lg logo sir plz help me:crying:
Click to expand...
Click to collapse
Try to flash the Kitkat baseband or if you are fully stock then i suggest you to flash the KDZ to go back to full stock(http://forum.xda-developers.com/showthread.php?t=2432476)
If you still have important data like pictures or what then do normal flash. Use the Android version you also had as stock and use that as KDZ. If you are not stock then can you reach TWRP?
and what did you do before that causes the black screen?
Stuck with the LG logo. Nothing happens in download mode
Hi All, not sure if this has been answered prior. This is what happen, I wanted to flash SOKP so I backup my phone and saved to PC using Titanium. I have TWRP installed.
Boot Into Recovery Mode and Wipe Data,System,Cache,Dalvik
I restart so I can flash the SOKP Rom and all I see on my phone is the LG logo. I try to restart using the Power and Up button, but it just sits in the download mode saying "Firmware Update" with no movement or action.
The phone is unable to turn off now. This is my first go at Flashing a Rom. Any help or suggestion would be greatly appreciated. Thanks in advance
my lg g2 is stuck on lg logo, and when i can enter download mode, and flash kdz my computer just dont detect my phone.
please help me :crying:
jungsora said:
my lg g2 is stuck on lg logo, and when i can enter download mode, and flash kdz my computer just dont detect my phone.
please help me :crying:
Click to expand...
Click to collapse
same here .... plz any solution?
justme!! said:
same here .... plz any solution?
Click to expand...
Click to collapse
Someone help, same issue.
sam_p15 said:
Someone help, same issue.
Click to expand...
Click to collapse
Someone help
Hey, I have the nearly same problem with my G2 running CM12 also installed recovery
But I can't reboot in recovery neither with the factory reset buttons, nor manually with SDK Manager, because the device is not found.
So I can just reboot and it shows the CM boot image, or get in the download mode.:crying:
Any suggestions?:fingers-crossed:
sam_p15 said:
Someone help, same issue.
Click to expand...
Click to collapse
I was in same stuation before 2 months send to warranty.
If rooted you can use adb shell with su and push partitions with "dd" while staring (stuck in lg logo)
Help!!
I have boot loop, only download mode accessible, device not found on adb. When I try LG FlashTool, instead of using the KDZ file I provide, it starts downloading some other firmware at times, and at times it says your software is up to date. What do I do? :|
How do i fix TWRP Bootloop on my HTC explorer a310e... ?
Dear,
How do i fix TWRP Bootloop on my HTC explorer a310e... ?
I hav custom cm11 Kitkat ROM installed on it...
but after I installed the rom, and again tried to reboot
into TWRP recovery, it is just stuck on the blue color
TEAMWIN screen... Please help how to fix it...!
USE method with .tot is working for me

LG G2 802 Soft Bricked

Hello.
I have an LG G2 802 that i managed to royally screw up last night, I was about to install the new firmware update for my phone, completely forgetting that i had a custom rom installed on it. After the firmware update was finished downloading, the phone rebooted into TWRP and would not boot normally after that, could not boot into the previous custom rom i had installed... I decided to wipe all the data, and try to use an old backup i had laying on the internal storage, got to it, wiped all data and started recovering the old backup. But the revovery wasn't working properly and it gave me an error, after fiddling around with TWRP a little more, i went into wipe -> advanced wipe -> and wiped everything, because i had an idea that i could just force a new rom over by ADB from my PC, and this all resulted in that I have no operating system, the phone boots into TWRP all the time, I've tried to hard reset it, but it just boots into TWRP whatever i do
Please help
Just flash a new KDZ over it. And next time check XDA if someone had the same problem as you and you will find the solution.
I've done a quick search about flashing a new kdz, and they involve getting into download mode, I can't access download mode, it just sends me to TWRP no matter what i do
Popps said:
Hello.
I have an LG G2 802 that i managed to royally screw up last night, I was about to install the new firmware update for my phone, completely forgetting that i had a custom rom installed on it. After the firmware update was finished downloading, the phone rebooted into TWRP and would not boot normally after that, could not boot into the previous custom rom i had installed... I decided to wipe all the data, and try to use an old backup i had laying on the internal storage, got to it, wiped all data and started recovering the old backup. But the revovery wasn't working properly and it gave me an error, after fiddling around with TWRP a little more, i went into wipe -> advanced wipe -> and wiped everything, because i had an idea that i could just force a new rom over by ADB from my PC, and this all resulted in that I have no operating system, the phone boots into TWRP all the time, I've tried to hard reset it, but it just boots into TWRP whatever i do
Please help
Click to expand...
Click to collapse
Are you able to boot into download mode?
---------- Post added at 09:42 AM ---------- Previous post was at 09:40 AM ----------
Ok Hold the power button until the phone flashes twice and then let go off the power button. When it's off, hold volume up and then connect it to USB simultaneously.
I just tried doing that, held the power off button until the LG logo flashed twice, the phone turned off, and then i held volume up button, LG logo appeared and then it just went straight into TWRP
Popps said:
I just tried doing that, held the power off button until the LG logo flashed twice, the phone turned off, and then i held volume up button, LG logo appeared and then it just went straight into TWRP
Click to expand...
Click to collapse
Ok, this time hold volume up and power button constantly while connected to USB. Report back.
Popps said:
I just tried doing that, held the power off button until the LG logo flashed twice, the phone turned off, and then i held volume up button, LG logo appeared and then it just went straight into TWRP
Click to expand...
Click to collapse
For those who have similar issues, I did the below steps:
1. While connected to computer in CWM recovery, install the drivers via PdaNet (these replace any original LG drivers)
http://forum.xda-developers.com/show....php?t=1983470
2. Connect to phone via ADB while still connected in CWM recovery (see below ADB download if you didn't already have it or forgot where it was)
http://forum.xda-developers.com/show....php?t=2317790
3. While connected via ADB you can use the same method as in the below thread (use the first one).
http://forum.xda-developers.com/show...1696&nocache=1
MK45A said:
Ok, this time hold volume up and power button constantly while connected to USB. Report back.
Click to expand...
Click to collapse
Tried it, it turns off, then the notification light at the top of the phone (beside the front camera) blinks 8 times if i constantly hold the volume up and power button, as soon as i release power button and volume up, the phone boots with the LG logo and then goes into TWRP.
Popps said:
Tried it, it turns off, then the notification light at the top of the phone (beside the front camera) blinks 8 times if i constantly hold the volume up and power button, as soon as i release power button and volume up, the phone boots with the LG logo and then goes into TWRP.
Click to expand...
Click to collapse
What he meant was, hold the Volume Up button & connect the phone to your PC. Don't have to hold power button at all. Try this mate.
Sent from my GT-I9000 using Tapatalk
robin786 said:
What he meant was, hold the Volume Up button & connect the phone to your PC. Don't have to hold power button at all. Try this mate.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
Well, i tried this right now, the phone boots, LG logo shows, then it just goes straight into TWRP and nothing happens, i held the volume up, plugged the USB cable in (i could hear the sound in windows when you plug a device into your PC)
Popps said:
Tried it, it turns off, then the notification light at the top of the phone (beside the front camera) blinks 8 times if i constantly hold the volume up and power button, as soon as i release power button and volume up, the phone boots with the LG logo and then goes into TWRP.
Click to expand...
Click to collapse
When the notification LED starts to blink, let go of both buttons for a split second and hold them back again. Make sure USB is connected. Since you have TWRP working, Download should also be available.
---------- Post added at 02:24 PM ---------- Previous post was at 02:21 PM ----------
robin786 said:
What he meant was, hold the Volume Up button & connect the phone to your PC. Don't have to hold power button at all. Try this mate.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
The problem is that you have to have the phone off to even attempt to get in to download mode.
MK45A said:
When the notification LED starts to blink, let go of both buttons for a split second and hold them back again. Make sure USB is connected. Since you have TWRP working, Download should also be available.
---------- Post added at 02:24 PM ---------- Previous post was at 02:21 PM ----------
The problem is that you have to have the phone off to even attempt to get in to download mode.
Click to expand...
Click to collapse
If i try to power off the phone WITH the usb cable connected to it, it just reboots automatically, so i cannot power off the phone without it rebooting all by itself, and then going into TWRP.
I tried to hold volume up and power while my phone was in TWRP and it rebooted, LG logo came up and then the red notification light started blinking, then i tried to do what you told me to, quickly release volume up and power button, while the LED was blinking, but nothing happened, other than the phone just rebooting, and then the LED started blinking red again, this just looped over and over again...
Turn it off, hold volume up and connect USB cable. Does it go to download mode?
robogo1982 said:
Turn it off, hold volume up and connect USB cable. Does it go to download mode?
Click to expand...
Click to collapse
No, the LG logo shows, then it goes into TWRP
have you tried this http://forum.xda-developers.com/showthread.php?t=2451696
Popps said:
Hello.
I have an LG G2 802 that i managed to royally screw up last night, I was about to install the new firmware update for my phone, completely forgetting that i had a custom rom installed on it. After the firmware update was finished downloading, the phone rebooted into TWRP and would not boot normally after that, could not boot into the previous custom rom i had installed... I decided to wipe all the data, and try to use an old backup i had laying on the internal storage, got to it, wiped all data and started recovering the old backup. But the revovery wasn't working properly and it gave me an error, after fiddling around with TWRP a little more, i went into wipe -> advanced wipe -> and wiped everything, because i had an idea that i could just force a new rom over by ADB from my PC, and this all resulted in that I have no operating system, the phone boots into TWRP all the time, I've tried to hard reset it, but it just boots into TWRP whatever i do
Please help
Click to expand...
Click to collapse
I had the same problem, stuck on logo lg , when i tried to go to download mode, i got stuck in the first step of it (i can't see the step with firmware update etc...) and when i tried to make a factory hard reset, it goes on the recovery mod.
After seeing many forums since 3-4 days, i tried to flash the kitkat kernel, so i used the adb sideload ---> so connected on recovery mod, then make install from sideload, then on your command (on windows) type adb sideload thenameofthekernel /sdcard/ and normally the recovery should install himself the kernel and you can reboot your phone
I still have an issue, can't access on download mode but i can use the phone as before, so if anyone can help, i listen you ^^
XxZombiePikachu said:
have you tried this http://forum.xda-developers.com/showthread.php?t=2451696
Click to expand...
Click to collapse
Just tried this, and when i turn on my phone, it only shows the LG logo, no TWRP this time, but i can't turn my phone off, it just restarts itself, and shows only the LG logo, cant get into download mode, i can get into the factory reset mode, but why would i go there when my phone doesn't have anything on it.....
Need some serious help
Popps said:
Just tried this, and when i turn on my phone, it only shows the LG logo, no TWRP this time, but i can't turn my phone off, it just restarts itself, and shows only the LG logo, cant get into download mode, i can get into the factory reset mode, but why would i go there when my phone doesn't have anything on it.....
Need some serious help
Click to expand...
Click to collapse
Hold down the power button till the it turns off and keep it held down the LG logo will flash up again then go off after that release it and wait a few seconds making sure the phone does not boot up again. Then hold down the volume up button and with the usb connected to the computer plug the USB into the phone this should then put it into download mode.
Why don't you sideload a rom in twrp recovery via adb?
twon23 said:
Hold down the power button till the it turns off and keep it held down the LG logo will flash up again then go off after that release it and wait a few seconds making sure the phone does not boot up again. Then hold down the volume up button and with the usb connected to the computer plug the USB into the phone this should then put it into download mode.
Why don't you sideload a rom in twrp recovery via adb?
Click to expand...
Click to collapse
I've already tried to get into download mode, and it doesn't let me, but now it wont even let me into TWRP, it's stuck at the LG logo, the notification light at the top is blinking in all different colors.
As i said, no download mode, now no TWRP...
Sangoku91 said:
I had the same problem, stuck on logo lg , when i tried to go to download mode, i got stuck in the first step of it (i can't see the step with firmware update etc...) and when i tried to make a factory hard reset, it goes on the recovery mod.
After seeing many forums since 3-4 days, i tried to flash the kitkat kernel, so i used the adb sideload ---> so connected on recovery mod, then make install from sideload, then on your command (on windows) type adb sideload thenameofthekernel /sdcard/ and normally the recovery should install himself the kernel and you can reboot your phone
I still have an issue, can't access on download mode but i can use the phone as before, so if anyone can help, i listen you ^^
Click to expand...
Click to collapse
I am in the same boat as you. Dont' know what to do.
When I try to boot into download mode - I see the initial screen but computer doesn't detect anything

[Q] Bootloop, no recovery - how to shutdown the phone

Hello,
I'm on LG G2 Stock Rom on Kit Kat (4.4.2). The phone is rooted but no custom recovery as I just need "root" to run Titanium backup.
Yesterday, I attempted to update the 1 XML file to increase speaker volume. Upon restart the phone will stuck on LG logo and does nothing.
I can access download mode. So now, i'm downloading LG Flash Tool and KDZ file for my phone to flash all back to stock.
The question is now: how do I turn off the phone? Pressing power button will simply restart the phone - it never goes to off.
Another question: if I don't install any custom recovery, is there any stock recovery installed? When I attempted to go to recovery (by pressing volume down + power method), I was presented with Factory reset questions. I clicked OK twice and then Android logo appears (it seems like it's attempting to really do a factory reset) and then phone reboots.
If I can go to stock recovery, I hope I can access the storage inside and redo what I did yesterday.
Anyone can help? Or share some knowledge?
Thanks
The latest software upgrade was installed by using LGMobile support tool. I'm back to stock and finish with ioRoot.
Now, going to use AutoRec to install recovery (better to have custom now, so if this happens again, I have a way to access my phone data).
No answers given but it's no longer urgent now. Still if anyone found a way to off the phone when boot looping other than waiting for battery to run dry, by all means, please reply the thread.
Thanks.
poundesville said:
The latest software upgrade was installed by using LGMobile support tool. I'm back to stock and finish with ioRoot.
Now, going to use AutoRec to install recovery (better to have custom now, so if this happens again, I have a way to access my phone data).
No answers given but it's no longer urgent now. Still if anyone found a way to off the phone when boot looping other than waiting for battery to run dry, by all means, please reply the thread.
Thanks.
Click to expand...
Click to collapse
Unplug the USB cable if it's plugged.
Hold power button for like 30 seconds straight.
To turn off phone ,just push volume down and power button same time for like 7-10 sec, it will be like restart , but keep them pressed until screen shuts off again (it will take less then 1 sec). Thats all
username4this said:
Unplug the USB cable if it's plugged.
Hold power button for like 30 seconds straight.
Click to expand...
Click to collapse
I didn't time 30 seconds, but I did press power button for a long time. Is this method for when you can use the phone? Mine is during boot loop.
jkjambo said:
To turn off phone ,just push volume down and power button same time for like 7-10 sec, it will be like restart , but keep them pressed until screen shuts off again (it will take less then 1 sec). Thats all
Click to expand...
Click to collapse
I can't say for sure now, since I have my phone backed-on. But I sort of press these buttons for a long time at the beginning (when I wasn't really sure how to go to recovery mode). But good to know about this - (for next time ).
thanks both!
Only method i know to completely shut down phone in any situation is what i already wrote in last post.
jkjambo said:
Only method i know to completely shut down phone in any situation is what i already wrote in last post.
Click to expand...
Click to collapse
Agreed.
it happen to me too when I try to install MIUI ROM.
Pull off USB cable and long press power the power button
Thanks. I'll remember this, if I got unlucky and stuck in booth loops.
For now, I installed recovery, so hopefully if this happens, I can still access my internal folder and do the require changes.

Haven't seen this before..

Hi guys,
I recently installed Simple ROM (Stock Android 5) for my G2 D802 however, I've found a need to downgrade back to 4.4.2. I went to flash a stock rooted 'H' version of the ROM which i've used before however during the flash, I got the error 'error executing updater binary' during the process.
After searching on google, it seems that I needed a newer version of TWRP (I had to change to a 'bumped' version to install the Simple ROM).
Having flashed 2.8.4 of TWRP, I rebooted the device however I now have the following issues:
- The device boots, shows the LG logo and the LED flashes
- The device never finishes it's boot
- I can not access recovery mode using the key combinations required
- The device doesn't seem to turn 'off'. When I press and hold the power button, the screen goes blank (though, still on) and then shows the LG logo again
I suspect, that because I cannot turn it off, I cannot boot to recovery.
Any thoughts on a quickfix?
EDIT: - It seems that I CAN turn the device off by holding vol UP, DOWN and POWER for a few seconds. I can get into download mode this way..
adaimespechip said:
Hi guys,
I recently installed Simple ROM (Stock Android 5) for my G2 D802 however, I've found a need to downgrade back to 4.4.2. I went to flash a stock rooted 'H' version of the ROM which i've used before however during the flash, I got the error 'error executing updater binary' during the process.
After searching on google, it seems that I needed a newer version of TWRP (I had to change to a 'bumped' version to install the Simple ROM).
Having flashed 2.8.4 of TWRP, I rebooted the device however I now have the following issues:
- The device boots, shows the LG logo and the LED flashes
- The device never finishes it's boot
- I can not access recovery mode using the key combinations required
- The device doesn't seem to turn 'off'. When I press and hold the power button, the screen goes blank (though, still on) and then shows the LG logo again
I suspect, that because I cannot turn it off, I cannot boot to recovery.
Any thoughts on a quickfix?
EDIT: - It seems that I CAN turn the device off by holding vol UP, DOWN and POWER for a few seconds. I can get into download mode this way..
Click to expand...
Click to collapse
Make sure you're trying both combinations possible for recovery, PWR + VOL DWN > PWR + VOL DWN method as well as the PWR + VOL DWN > VOL DWN + VOL UP method. You may be on a different recovery then what you think (happened to me once). The fact you can enter download mode is great however, worst case you can always return to stock.
d00lz said:
Make sure you're trying both combinations possible for recovery, PWR + VOL DWN > PWR + VOL DWN method as well as the PWR + VOL DWN > VOL DWN + VOL UP method. You may be on a different recovery then what you think (happened to me once). The fact you can enter download mode is great however, worst case you can always return to stock.
Click to expand...
Click to collapse
Thanks for this. I've tried recovery both ways, and neither work unfortunately. I'm going to plug it into PC Suite and see if that picks anything up, failing that i'll grab a kdz. :/
adaimespechip said:
Thanks for this. I've tried recovery both ways, and neither work unfortunately. I'm going to plug it into PC Suite and see if that picks anything up, failing that i'll grab a kdz. :/
Click to expand...
Click to collapse
Okay good luck. Make sure you grab your kdz file from a site like http://www.lg-firmware-rom.com using your IMEI.
d00lz said:
Okay good luck. Make sure you grab your kdz file from a site like http://www.lg-firmware-rom.com using your IMEI.
Click to expand...
Click to collapse
Not going so well.. Installed everything on my Windows machine but it doesn't seek to pick up the device in download mode.
If I select 'Read phone information' on the Flash tool, it stops responding and I end up needing to close it. Also, in the Flash tool, what should I select under 'select type' - it defaults to CDMA..
I can skip the 'read phone info' bug and just hit START which then loads the 'select country and language' view, then the LG Mobile Support which doesnt pick up the device.
help?
adaimespechip said:
Not going so well.. Installed everything on my Windows machine but it doesn't seek to pick up the device in download mode.
If I select 'Read phone information' on the Flash tool, it stops responding and I end up needing to close it. Also, in the Flash tool, what should I select under 'select type' - it defaults to CDMA..
I can skip the 'read phone info' bug and just hit START which then loads the 'select country and language' view, then the LG Mobile Support which doesnt pick up the device.
help?
Click to expand...
Click to collapse
Have you installed the LG Drivers? Link
If you have, when your phone is connected open device manager on your PC and see if you can spot your android device, or anything that represents your device.
Everything you need to select is in that thread I Iinked you too.
You dont need to change anything within the tool, keep cdma selected and just make the language english, you can keep the country on korea it doesnt matter.
d00lz said:
Have you installed the LG Drivers? Link
If you have, when your phone is connected open device manager on your PC and see if you can spot your android device, or anything that represents your device.
Everything you need to select is in that thread I Iinked you too.
You dont need to change anything within the tool, keep cdma selected and just make the language english, you can keep the country on korea it doesnt matter.
Click to expand...
Click to collapse
Yup AFAIK everything is installed. The device was picked up by the machine as it did ask me install more drivers.
The main issue seems to be sat with the LG mobile support tool. It continuously fails due to an error and nothing progresses on the device itself.
The only thing i've noticed is that the bottom of the device screen, shows 'B18' and 'Rooted'. The B# keeps increasing, though?
adaimespechip said:
Yup AFAIK everything is installed. The device was picked up by the machine as it did ask me install more drivers.
The main issue seems to be sat with the LG mobile support tool. It continuously fails due to an error and nothing progresses on the device itself.
The only thing i've noticed is that the bottom of the device screen, shows 'B18' and 'Rooted'. The B# keeps increasing, though?
Click to expand...
Click to collapse
The B is just your current battery percentage. It will increase as it gathers charge from the USB connectivity, nothing to worry about.
As for why there's no communication between the software and your phone, I can't explain that but it's obviously looking like a driver problem. Try opening the LG Flash Tool log file found in C:\LGMobileUpgrade\log.txt.
Copy and paste the entire log onto pastebin and I'll have a look at it for you.
d00lz said:
The B is just your current battery percentage. It will increase as it gathers charge from the USB connectivity, nothing to worry about.
As for why there's no communication between the software and your phone, I can't explain that but it's obviously looking like a driver problem. Try opening the LG Flash Tool log file found in C:\LGMobileUpgrade\log.txt.
Copy and paste the entire log onto pastebin and I'll have a look at it for you.
Click to expand...
Click to collapse
Ah good. Thanks!
See below - There were 2 log files, this is the most recent..
http://pastebin.com/JRBmQ1q6
EDIT: further to this, i've looked at the LG mobile support tool on it's own.. That seems to get a lot further than when it's called upon from the update tool. However the battery is now too low.
adaimespechip said:
Ah good. Thanks!
See below - There were 2 log files, this is the most recent..
http://pastebin.com/JRBmQ1q6
Click to expand...
Click to collapse
May I suggest putting your kdz file in the LG Flash Tool folder.
Also does the LG Flash Tool stay at 0% or does it increase before failing? May I also suggest trying this on other Operating Systems if at all possible.
d00lz said:
May I suggest putting your kdz file in the LG Flash Tool folder.
Also does the LG Flash Tool stay at 0% or does it increase before failing? May I also suggest trying this on other Operating Systems if at all possible.
Click to expand...
Click to collapse
I'll give that a go in a moment.
The Flash tool increases several times before failing. Is there a Mac version of the flash tool?
adaimespechip said:
I'll give that a go in a moment.
The Flash tool increases several times before failing. Is there a Mac version of the flash tool?
Click to expand...
Click to collapse
Not that I'm aware of. Have you tried a hard reset?
Take your phone and turn it off.
Wait while your device is shutting down.
Then, press volume down button and power button together until the LG logo appears on the screen.
When the LG logo is displayed, let go of the power button, keep pressing the volume down key and then press once more the power button.
Once you do that, on your LG G2 the factory reset menu will be displayed.
Press power button in order to agree and wait while the hard reset is being completed.
d00lz said:
Not that I'm aware of. Have you tried a hard reset?
Take your phone and turn it off.
Wait while your device is shutting down.
Then, press volume down button and power button together until the LG logo appears on the screen.
When the LG logo is displayed, let go of the power button, keep pressing the volume down key and then press once more the power button.
Once you do that, on your LG G2 the factory reset menu will be displayed.
Press power button in order to agree and wait while the hard reset is being completed.
Click to expand...
Click to collapse
That requires booting into the recovery though right? I can't get to that point. So yes, i've tried that but the LG logo just shows, and does not get to the reset or recovery screens.
The device just sits at the LG logo screen with the LED pulsing and changing colours.
adaimespechip said:
That requires booting into the recovery though right? I can't get to that point. So yes, i've tried that but the LG logo just shows, and does not get to the reset or recovery screens.
The device just sits at the LG logo screen with the LED pulsing and changing colours.
Click to expand...
Click to collapse
No, you could just do it while the phones turned off.
Instructions to do a Master Reset with Hardware Keys can be found here.
The only other option I can give you is attempting the old manual kdz method found here, sorry .
All fixed - first time.. Issue was down to a crappy Windows machine at the office.. Thanks for your help.

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