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[SOLVED][ERROR] Device stuck on boot! Error: Boot Image Signature

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By TechnoBraker, Member on 19th April 2013, 04:48 PM
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Guys,
I'm relatively new to flashing recovery and ROMs..
So, sorry if this is a noob question..
I really need urgent help!

I am on V20a (ESA-XXX) and have successfully rooted my phone.

I tried installing CWM using this method..
http://forum.xda-developers.com/show....php?t=2180138

I used the unsecure boot provided by gordon0001
http://forum.xda-developers.com/show...e#post39918805

After i restarted my phone, it got stuck at boot!!
Its gives the following error and turns of in 5 seconds..

[LG-Security] Error: Boot Image Signature!

The phone doesn't start and does not go into recovery either..
The phone is not even recognised by my PC.. keeps restarting (to error screen) if i connect to pc..
Please, someone help me.. I'm really scared.. I don't want to lose my phone..

I read a similar prob, but no solution found..
http://forum.xda-developers.com/show....php?t=2223697

PLEASE HELP!!

SOLUTION:
Reflash .kdz via Software Upgrade Mode (hold Power button and Volume - )
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19th April 2013, 05:08 PM |#2  
hernestwisnu's Avatar
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Dude, reflashing your phone should work. As long as SW mode is still accessible, your phone isn't dead yet. Follow the instructions on this post http://forum.xda-developers.com/show...php?p=35971349 Be freaking sure all necessary drivers are properly installed.

Or you can put your phone in recovery mode (power + vol +) and reinstall the stock rom using recovery LG tools providing your Internet connection is fast and stable

Sent from my LG-P880 using Tapatalk 2
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19th April 2013, 05:26 PM |#3  
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hey dude, i have flashed 7 times exactly since this morning only. and i have gotten that error 3 times of those 7. so it should not be a problem
19th April 2013, 08:14 PM |#4  
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Thumbs up Thanks!
After a few attempts, was able to go to the s/w upgrade mode.. (power + vol(-) )
Reflashed .kdz and it's all good.. (had to root again)

Actually, i was freaked out more coz it's my new phone and i didn't find others with the problem..
I hope that this thread would help if anyone faces a similar problem in the future..
Thanks for the prompt response, guys!
19th April 2013, 09:15 PM |#5  
RuedasLocas's Avatar
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Quote:
Originally Posted by TechnoBraker

After a few attempts, was able to go to the s/w upgrade mode.. (power + vol(-) )
Reflashed .kdz and it's all good.. (had to root again)

Actually, i was freaked out more coz it's my new phone and i didn't find others with the problem..
I hope that this thread would help if anyone faces a similar problem in the future..
Thanks for the prompt response, guys!

You don't read a lot, right?...
If I had 100€ for each user that had that same problem...
(thinking about 1€, hummm?... of course not, 100's better)
23rd April 2013, 07:37 PM |#6  
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Question
Quote:
Originally Posted by TechnoBraker

Guys,
I'm relatively new to flashing recovery and ROMs..
So, sorry if this is a noob question..
I really need urgent help!

I am on V20a (ESA-XXX) and have successfully rooted my phone.

I tried installing CWM using this method..
http://forum.xda-developers.com/show....php?t=2180138

I used the unsecure boot provided by gordon0001
http://forum.xda-developers.com/show...e#post39918805

After i restarted my phone, it got stuck at boot!!
Its gives the following error and turns of in 5 seconds..

[LG-Security] Error: Boot Image Signature!

The phone doesn't start and does not go into recovery either..
The phone is not even recognised by my PC.. keeps restarting (to error screen) if i connect to pc..
Please, someone help me.. I'm really scared.. I don't want to lose my phone..

I read a similar prob, but no solution found..
http://forum.xda-developers.com/show....php?t=2223697

PLEASE HELP!!

SOLUTION:
Reflash .kdz via Software Upgrade Mode (hold Power button and Volume - )

But WHY AND HOW did it happen? have you flashed a custom rom now without errors?
23rd April 2013, 08:18 PM |#7  
@non4's Avatar
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Quote:
Originally Posted by GeBoe

But WHY AND HOW did it happen? have you flashed a custom rom now without errors?

You needed to unlock bootloader first, either "adb reboot oem-unlock" or download terminal emulator, root the phone and type:

su
echo 40000000c8 > /sys/firmware/fuse/odm_reserved

Sent from my rooted P880
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27th May 2013, 04:20 AM |#8  
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I solved the problem flashing back to stock rom.

From this page http://lg-phone-firmware.com/ you may download your original stock rom.

WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.
27th May 2013, 10:56 PM |#9  
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Quote:
Originally Posted by askinkoc

I solved the problem flashing back to stock rom.

From this page http://lg-phone-firmware.com/ you may download your original stock rom.

WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.

And once again:
flashing stock is not at all dangerous. it will not brick your device or something else.
Sometimes you even have to re-stock your phone.
28th May 2013, 06:37 PM |#10  
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Angry Stock is safe!
Quote:
Originally Posted by askinkoc

I solved the problem flashing back to stock rom.

From this page http://lg-phone-firmware.com/ you may download your original stock rom.

WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.

haha, flashing the stock rom back can never be a problem..
that is the only rom which inherently supposed to be problem-free!
16th August 2013, 10:24 PM |#11  
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Quote:
Originally Posted by @non4

You needed to unlock bootloader first, either "adb reboot oem-unlock" or download terminal emulator, root the phone and type:

su
echo 40000000c8 > /sys/firmware/fuse/odm_reserved

Sent from my rooted P880

just tried this ^^^ worked thanks

Had the exact same problem as TechnoBraker however if you held the power button as the phone turned to "power save" and you timed it perfectly it would start normally and as long as i didnt try to go into recovery mode it was fine
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