L7 P700 bricked with first version of custom kernel... please help. - Optimus L3, L5, L7 Q&A, Help & Troubleshooting

I have an p700 with cm10( last version ), cmw touch last version, crossbreeder and first version of custom kernel (without oc). Run perfectly until yesterday. I intended to flash new kernel (V4). Battery was at 9 percent full. Reboot in recovery mode and... shock ... black screen. My phone is dead. Nothing... no power, no joy....
Thank you for help...
Sent from my Galaxy Nexus using Tapatalk 2

did your charge it? did it boot? can you enter recovery or emergency?
and why did you flash with only 9%?!?

h4x0r007 said:
did your charge it? did it boot? can you enter recovery or emergency?
and why did you flash with only 9%?!?
Click to expand...
Click to collapse
From my experience with p500 (optimus one) 9% battery it more then enough for flash an kernel ... but it seems that 9% was not for real (first version of custom kernel has problem with battery status). Anyway ... after I downloaded the new kernel (v4), from reboot menu (cm10) I gave the reboot recovery command ... "Rebooting now" ... and ... instead of recovery mode, the phone was powered off. So I never got to flash ... Now it's dead, does nothing ... No power (with or without battery and the power cord plugged in), no recovery mode, no emergency mode, no charging.
I used original charger (0,75 A), after that an Samsung charger (1 A), after that an Logitech charger (1.5A).
I tryed to charge with my laptop from USB 2.0 port and 3.0 port, and with my desktop computer ( USB 2.0, 3.0 )... All I've got is THE BIG NOTHING.
Thank you for replay...

It just happen to Me..!
Recently it works fine and I did nothing..
Battry on 66%, and try to refresh the system via reboot.
Few seconds, screenlight turn off.
I've keep waiting. it usualy showing LG logo after 10seconds.
But nothing happen.
Try to power on and also try CMW shortcut.
It still blackscreen, no vibrate, no light.
Is there a way out of here? or any solutions?
:sad:

gefademe2d said:
It just happen to Me..!
Recently it works fine and I did nothing..
Battry on 66%, and try to refresh the system via reboot.
Few seconds, screenlight turn off.
I've keep waiting. it usualy showing LG logo after 10seconds.
But nothing happen.
Try to power on and also try CMW shortcut.
It still blackscreen, no vibrate, no light.
Is there a way out of here? or any solutions?
:sad:
Click to expand...
Click to collapse
Unfortunately, the only way to bring it to life is JTAG. I paid ~ 35Euro for JTAG-ing.

damn
damn i want cm10 too, bet im to scared with bootloader unlocking etc after reading posts...

Its happend to me too and i found a way to get out there
Tip: NEXT TIME DO NOT INSTALL ANY KERNEL!!!
This is the solution:
1. Download LG Optimus L7 USB Driver for Windows | Mac
Download official LG Optimus L7 stock firmware from this page. The file would be a .kdz file. Download the appropriate firmware according to your network provider and country.
3. Download KDZ updater and install it on your computer.
4.The zip file has a Microsoft XML parser, make sure you run it as an administrator and restart your PC. This will solve the wparam 100 and lparam 6 issue mentioned in a comment below.
5.The next step is to put your phone into emergency mode. To do this, remove the battery of your phone and re-insert it (don’t turn it on). Press and hold Volume Up button and Volume Down button. While you are pressing the two buttons, press the Power button. So now, you must be pressing all three buttons together. See this video
6.Your phone will boot into emergency mode and you should see a yellow screen with Emergency mode written on it.
7.Pick up the USB Cable and connect your phone to the computer via the USB Cable.
8.Run KDZ updater as Administrator.
9.Choose the following options in KDZ Updater: Type: 3GQCT Phone Mode: DIAG and KDZ file is the one you downloaded in step 3.
*image:
http://www.hackmyandroid.com/wp-content/uploads/2012/09/Root-LG-P350-LG-Update.png
10.Re-check with the image above and ensure that you have the appropriate settings on the KDZ updater.
11.Take a deep breath and click on “Launch Software Update” button.
12.This process is usually long. It take quite a long time for the firmware to be flashed on your phone.
13.If everything goes well, you will see “Finished” written in the log screen and your phone will change to switched off mode from Emergency mode.
14.The next time you turn it on, your phone will take a lot of time to reboot. Stay Cool! its normal.

david08 said:
Its happend to me too and i found a way to get out there
Tip: NEXT TIME DO NOT INSTALL ANY KERNEL!!!
This is the solution:
1. Download LG Optimus L7 USB Driver for .......
Click to expand...
Click to collapse
I knew this method ... but in my case, the phone does not respond to any command.

heruur2 said:
I knew this method ... but in my case, the phone does not respond to any command.
Click to expand...
Click to collapse
When you turn on your phone that shows you the LG logo?

david08 said:
When you turn on your phone that shows you the LG logo?
Click to expand...
Click to collapse
It has no power...

heruur2 said:
It has no power...
Click to expand...
Click to collapse
Connect the device into electricity and not to your computer.
For 1 hour and try again

david08 said:
Connect the device into electricity and not to your computer.
For 1 hour and try again
Click to expand...
Click to collapse
Thank you for help...
BUT...
I try already for many hours, with 3 type of chargers... (0.75A - original charger, 1A and 1.5A)...
As i told in my previews post ... Now it works ... After JTAG-ing...

david08 said:
Its happend to me too and i found a way to get out there
4.The zip file has a Microsoft XML parser, make sure you run it as an administrator and restart your PC. This will solve the wparam 100 and lparam
Click to expand...
Click to collapse
It is not possible to run that file as an administrator. I tried on 3 different systems: Win 8x64, Win 7x64 and Win 7x32. I have a logo stucked but after few seconds it plays the sound and logo does it's animation then same static logo and then it stucks. Is there any solution besides j-taging? Does warranty service cover this as a defect and repair for free?
Thanks

Kastuvasesi said:
It is not possible to run that file as an administrator. I tried on 3 different systems: Win 8x64, Win 7x64 and Win 7x32. I have a logo stucked but after few seconds it plays the sound and logo does it's animation then same static logo and then it stucks. Is there any solution besides j-taging? Does warranty service cover this as a defect and repair for free?
Thanks
Click to expand...
Click to collapse
Try hard reset :
1. When the phone is switched off, press and hold the Volume down key + Power key with your left hand.
2. When the LED on the bottom of the phone lights up, touch and hold the Menu key with your right hand. You need to do this immediately, before the screen displays the LG logo. Make sure your left hand is still holding the Volume down and Power keys.
Then release the power key at vibration time.
3. When the LG logo is displayed on the screen, continue to hold the keys for around 2 seconds, and then release all
them at the same time, before the LG logo disappears.
Leave your phone for at least a minute while the hard reset is carried out. You will then be able to switch your phone back on.
Caution: If you perform a hard reset, all user applications and user data will be deleted. This cannot be reversed.

Related

[Q] HELP!!!! MY LG L7 P705g can't start

Hi,
one day, I changed the permission of /system/font by accident:
e.g. I changed:
.............read....write.....execute
user.........V........V...........V
group.......V.....................V
others......V.....................V
to
............read.......write......execute
user........V..........V..............
group.......V.........................
others......V.........................
After that, I can't turn on my phone anymore T.T
When I press the power button, the LG logo appears, and then vibrate, logo disappear, after a few seconds the logo comes back and that's it!
It just stays there (I waited for 2 hours and it didn't change,so I turned it off)
Please help~
How can i fix it...
leelulu4fb said:
Hi,
one day, I changed the permission of /system/font by accident:
e.g. I changed:
.............read....write.....execute
user.........V........V...........V
group.......V.....................V
others......V.....................V
to
............read.......write......execute
user........V..........V..............
group.......V.........................
others......V.........................
After that, I can't turn on my phone anymore T.T
When I press the power button, the LG logo appears, and then vibrate, logo disappear, after a few seconds the logo comes back and that's it!
It just stays there (I waited for 2 hours and it didn't change,so I turned it off)
Please help~
How can i fix it...
Click to expand...
Click to collapse
Enter download mode, and flash your firmware like this: http://forum.xda-developers.com/showthread.php?t=2409308 or just open LG Mobile Support Tool and select "Recover Phone". It does the same thing but it's easier.
Nothing's lost, you'll get it fixed.
mircea89fzr said:
Enter download mode, and flash your firmware like this: http://forum.xda-developers.com/showthread.php?t=2409308 or just open LG Mobile Support Tool and select "Recover Phone". It does the same thing but it's easier.
Nothing's lost, you'll get it fixed.
Click to expand...
Click to collapse
hi, thanks a lot.
but what is "version"? There are version 10C/10E/20A in http://lg-phone-firmware.com/index.php?mod=Lg+Optimus+L7&paese=RGS/ROGERS&id_mod=13 ...
How can I know which one is the right one?
leelulu4fb said:
hi, thanks a lot.
but what is "version"? There are version 10C/10E/20A in http://lg-phone-firmware.com/index.php?mod=Lg+Optimus+L7&paese=RGS/ROGERS&id_mod=13 ...
How can I know which one is the right one?
Click to expand...
Click to collapse
My guess is 20A is ICS, 10C is the first release of Gingerbread, and 10E whatever update they did to it. If you're not sure, go with the LG Mob Supp Tool, it's safer and easier.
mircea89fzr said:
Enter download mode, and flash your firmware like this: http://forum.xda-developers.com/showthread.php?t=2409308 or just open LG Mobile Support Tool and select "Recover Phone". It does the same thing but it's easier.
Nothing's lost, you'll get it fixed.
Click to expand...
Click to collapse
one more problem, I can't access to download mode, I press vol+ & power, but nothing happen
leelulu4fb said:
one more problem, I can't access to download mode, I press vol+ & power, but nothing happen
Click to expand...
Click to collapse
Did it work before with the exact firmware update you had? Remove the battery of your phone and re-insert it (don’t turn it on). Press and hold Volume Up button and Volume Down button. While you are pressing the two buttons, press the Power button or insert USB cable (try both if it doesn't work). Or try with: phone off, volume down + insert cable. I don't know the exact combination for your phone.
leelulu4fb said:
one more problem, I can't access to download mode, I press vol+ & power, but nothing happen
Click to expand...
Click to collapse
try vol down+power
when keys light up, touch menu key (vibrates)
Even if you can't go to download mode you'll still be able to use kdz on it. just plug it in and start it. And btw, be careful next time. My Optimus L7 got hard bricked and I needed to go to LG for them to fix it.

LG G2 fully BRICKED no download no recovery

Hey,
My LG G2 802 is fully bricked now. I can't get anything alse that LG splash screen, I tried entering download or fastboot mode but with no luck.
It happend when my ROM flashing software crashed in the middle of process.
Help me out guys.
i have the same. No download mode, no recovery. Ubuntu don't recognize my G2 (i try all tutorials). Only i saw LG screen. When i press vol- and power 2 times i have option FACTORY RESET but when i do this i saw only FACTORY SETTINGS PROCESSING and stop at this. After restart only LG.
witek_77 said:
i have the same. No download mode, no recovery. Ubuntu don't recognize my G2 (i try all tutorials). Only i saw LG screen. When i press vol- and power 2 times i have option FACTORY RESET but when i do this i saw only FACTORY SETTINGS PROCESSING and stop at this. After restart only LG.
Click to expand...
Click to collapse
Exacly the same story with factory reset.
1. un plug device from wall or pc
2 make sure phone is all the way off (hold down power and volume down) untill it stops booting
3. hold volume UP while plugging device into pc
4. follow these instructions to return to stock http://www.droidgreen.com/lg-g2-official-stock-android-firmware-rom/
5. allow usb debuging in dev options and install unknown sources in security
6. to root your device go to towelroot.com download apk and install
7. to flash custom recovery use freegee its found in playstore
my phone havent got download mode. I flash KDZ on blue dots downlad mode. After this my phone has bricked. Only black screen. After this i have flash on ubuntu partitions and twrp. Ewerything was ok but after restart my phone dont go to TWRP. Only LG. Now i cant do anything. I havent got download mode and after VOL- and POWER my recovery dont do anything. On monday i will send my phone to service.
IT WORKS!
Well.. problem has been solved almost it self. As I said before I was trying do hold volume UP and plug it to the computer. But phone was showing only the LG logo and that's all. Linux didn't see it either.
When every idea was used I tried to completly discharge it. When it turn off i tried to plug it in and check what happens but AGAIN I saw only LG splash screen and I left it in that way. I came back after maybe 10-15min and I found phone in Download Mode. Linux saw it and without any problem I installed fresh ROM.
Really I can't explain this but it's just happend. So my advice, try any possible solution and method.
Good Luck guys!
Glad to here sound like your device wasn't fully powered off patience is pretty mine say on download mode doing nothing fir 10 minutes once [emoji106]
Tapatalked from a Cloudy G3.
"hit thanks if ive helped" ?
ick56 said:
Well.. problem has been solved almost it self. As I said before I was trying do hold volume UP and plug it to the computer. But phone was showing only the LG logo and that's all. Linux didn't see it either.
When every idea was used I tried to completly discharge it. When it turn off i tried to plug it in and check what happens but AGAIN I saw only LG splash screen and I left it in that way. I came back after maybe 10-15min and I found phone in Download Mode. Linux saw it and without any problem I installed fresh ROM.
Really I can't explain this but it's just happend. So my advice, try any possible solution and method.
Good Luck guys!
Click to expand...
Click to collapse
Thank you, Ick56, for the ray of hope you've given me. My G2 is fully discharged since yesterday and I'm on the same boat as you - no recovery, no download, no fastboot, not detected by the computer. I'm trying your way now. My question is - when you plugged it in fully discharged, did you hold any buttons?
Thanks again and thanks in advance!
kaha6uc said:
Thank you, Ick56, for the ray of hope you've given me. My G2 is fully discharged since yesterday and I'm on the same boat as you - no recovery, no download, no fastboot, not detected by the computer. I'm trying your way now. My question is - when you plugged it in fully discharged, did you hold any buttons?
Thanks again and thanks in advance!
Click to expand...
Click to collapse
Volume up when you plug it into the computer.
nms247 said:
Volume up when you plug it into the computer.
Click to expand...
Click to collapse
Thank you for your answer, but I wasn't asking how to get to download mode. I was asking the OP what he did when his battery was fully discharged.
kaha6uc said:
Thank you, Ick56, for the ray of hope you've given me. My G2 is fully discharged since yesterday and I'm on the same boat as you - no recovery, no download, no fastboot, not detected by the computer. I'm trying your way now. My question is - when you plugged it in fully discharged, did you hold any buttons?
Thanks again and thanks in advance!
Click to expand...
Click to collapse
I just plugged it in to the computer. Yes, it's sounds ridiculous but in some way after few minutes it worked. Maybe try it with volume up too, who knows what will happen ;p
Good Luck!
ick56 said:
I just plugged it in to the computer. Yes, it's sounds ridiculous but in some way after few minutes it worked. Maybe try it with volume up too, who knows what will happen ;p
Good Luck!
Click to expand...
Click to collapse
Thanks again. Here's what happens:
1. While unplugged, I entered the Factory Reset mode and left it as it is (didn't push any buttons) in order for the display to drain the battery;
2. When the battery was drained the phone went off;
3. After waiting for a few seconds I plugged it into the computer;
4. The red led was flashing for a minute or so and then the LG logo came on;
5. I'm now waiting.
Will post again when/if anything happens
EDIT: Almost an hour now and still only LG logo
i have the same.
kaha6uc said:
Thanks again. Here's what happens:
1. While unplugged, I entered the Factory Reset mode and left it as it is (didn't push any buttons) in order for the display to drain the battery;
2. When the battery was drained the phone went off;
3. After waiting for a few seconds I plugged it into the computer;
4. The red led was flashing for a minute or so and then the LG logo came on;
5. I'm now waiting.
Will post again when/if anything happens
EDIT: Almost an hour now and still only LG logo
Click to expand...
Click to collapse
If your light flashed red that means it is charging you HAVE to hold the up volume WHILE plugging it in in to enter download mode DONT DRAIN BATTERY TO COMPLETELY POWER OF HOLD VOL DOWN AND POWER UNTIL OT STOPS BOOTING THEN PLUG IT IN WHILE HOLDING VOL UP
Tapatalked from a Cloudy G3.
"hit thanks if ive helped" ?

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.

LG G2 boot certification verify - Critical error

Hello to all guys, I want to expose my problem hoping to find a solution and does not require the services that will surely take a long time.
Basically my LG G2 branded TIM week which started to give me problems to the camera, when I opened the black screen appeared and gave me an error message, the phone then crashed and was forced to restart.
Today so I decided to perform a reset + update using "flash tool LG 2014"
Drain everything and start the process of resetting.
Initially, the recovery tool appear to me instead of writing many question marks, and a progress bar.
The progress bar was also present on the phone, but arrived at about 10% it stops and returns to 0%.
On the computer instead tool gives me an error and terminates the operation.
So I decided to turn on the phone and I get a black screen with LG logo for about 5 seconds:
ERROR: boot verify certification;
[1200]
[1250]
[1300] Secure booting error!
[1350] Joined: boot verify certification
[1400]
[1450]
After I get this blank screen:
Critical error!
Demigod crash handler: critical error!
Press key to choose dload mode or reboot.
1) Volume up: DLOAD mode.
2) Volume down: Reboot.
If you choose DLOAD mode,
Please Following action.
1) DLOAD mode. Please connect USB.
2) Get the ram dump image using QPST configuration.
Board info
rev speed, serial pvs
Restart the phone does not do any good and is always shown on this screen.
By connecting your phone to the PC without pressing any key it is not recognized and the computer does not make any sound device connected.
As if I try to press the button Vol + and insert the USB (as it says on the terminal should enter download mode, but it is not because the phone is always on that white screen), the computer emits the sound of connection a new device but does not appear in the management discs or another.
Trying to use the tool to restore the phone screen remains the same, while on the computer advances to 4% and then stops.
Has anyone encountered the same problem or have a solution?
Sorry for my English, I use google translator.
Thank you all.
Unplug cable, press power button it should be turn off (don't pull your finger until LG Logo appear and gone). After that connect to pc while pressing Volume+ button. Try flash stock kdz again with flashtool.
khanjui said:
Unplug cable, press power button it should be turn off (don't pull your finger until LG Logo appear and gone). After that connect to pc while pressing Volume+ button. Try flash stock kdz again with flashtool.
Click to expand...
Click to collapse
I tried, but the load remains stuck at 4%.
Then he tells me to try again.
hectoros said:
I tried, but the load remains stuck at 4%.
Then he tells me to try again.
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-g2/development-d802/fix-lg-flash-tool-stuck-2-t3031112
http://www.theandroidsoul.com/how-t...it-stops-at-4-while-flash-kdz-firmware-80205/
Theese are all i found on web. Good luck...
khanjui said:
http://forum.xda-developers.com/lg-g2/development-d802/fix-lg-flash-tool-stuck-2-t3031112
http://www.theandroidsoul.com/how-t...it-stops-at-4-while-flash-kdz-firmware-80205/
Theese are all i found on web. Good luck...
Click to expand...
Click to collapse
Thanks
I tried both methods, but did not work: /
In the second link must WindowsŠ 7, I tried with WindowsŠ 8.1, but has not worked.
hectoros said:
Thanks
I tried both methods, but did not work: /
In the second link must WindowsŠ 7, I tried with WindowsŠ 8.1, but has not worked.
Click to expand...
Click to collapse
If you got guarantee for your phone, send them.
khanjui said:
If you got guarantee for your phone, send them.
Click to expand...
Click to collapse
Yes I have the guarantee.
Today I am going to the store LG Service.
Do you think I will pay?
hectoros said:
Yes I have the guarantee.
Today I am going to the store LG Service.
Do you think I will pay?
Click to expand...
Click to collapse
I don't think so. Tell them; I was updating and this happened. Or something like that.
Sent from my LG-D802 using Tapatalk
khanjui said:
If you got guarantee for your phone, send them.
Click to expand...
Click to collapse
khanjui said:
I don't think so. Tell them; I was updating and this happened. Or something like that.
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
Okay, thank you very much

LG G2 Boot security error after trying to flash SuperSu after going to LineageOS 14.1

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

Categories

Resources