I rooted my phone with a locked bootloader So now when I try to open my phone I start getting this message [LGE SECURITY] Error Boot Image Signature then after 5 seconds it shuts down I tried everything I cant open my phone please help
Same issue!
I have the same problem here. Did you find a solution?
For Now flash your P880 with v20 kdz file, you can find it in General Threads.
Link for finding v20 kdz file
check post #3 by RuedasLocas
http://forum.xda-developers.com/showthread.php?t=2177616
and for Flashing steps
http://forum.xda-developers.com/showthread.php?t=2069723
Related
Yesterday, I had downloaded the software update ( check update ) of the phone (7mb), and after I have it installed , I can't power my optimus 4x as it only show the start screen consisted of only LG logo and
[LGE_SECUIRITY] ERROR: boot image signature
Critical failure: Unable to start kernel
unrecoverable bootloader error (0*000000002)
can s1 help me to revive back ?
Nooberknight said:
Yesterday, I had downloaded the software update ( check update ) of the phone (7mb), and after I have it installed , I can't power my optimus 4x as it only show the start screen consisted of only LG logo and
[LGE_SECUIRITY] ERROR: boot image signature
Critical failure: Unable to start kernel
unrecoverable bootloader error (0*000000002)
can s1 help me to revive back ?
Click to expand...
Click to collapse
First Rule of XDA;
1. Search before posting.
Use one of our search functions before posting, whether you have a question or something new to share, it's very likely someone already asked that question or shared that news.
Click to expand...
Click to collapse
well
SimonTS said:
First Rule of XDA;
Click to expand...
Click to collapse
ive been in that thread and it didnt work for me,it says the same but i cant even put in sw update mode anything it doesnt even charge my battery.
i have a development lg 4x
Hi every one, I have problem with my Flex D955 phone cause today I've changed my boot animation to new using the app "Boot Box" animation was have probably biggest or smallest resolution like my display in phone, and now I have boot loop, somehow today I'm get into download mode also LG recovery works, phone is rooted and have stock KK firmware
Can some one help me resolve problem
Greetings Artur
Hi it's me again I finally think that I found resolution of my problem, using some tutorial from internet that looking like that
HTML:
The final solution is getting your bricked LG G Flex to the same exact state in which it was initially purchased. In order to do so, just install stock Android OS by following these steps:
Download Flashtool V1.5 from here and install it;
Transfer the Megalock.dll file to C:\LG\LgFlashtool;
Enter download mode on your LG G Flex;
Connect the bricked device to the computer, open ‘Device Manager’ and choose COM41;
Open Flashtool and choose .dll and .tot file;
When the ‘Ready’ message is displayed, you have to push the USB out and plug it in again in a few seconds;
The Flash tool will start running;
At the end of the procedure, your LG G Flex will be back to the stock / official Android version.
But I have problem i do not know where can find that both files .dll and .tot files
That files must by for LG G Flex D955
Sorry I know that I forgot write the model on my phone in first post, before I was using Samsung phones and it was easier
Ok guys my phone works again I used tutorials from our side
Flashing:
HTML:
http://forum.xda-developers.com/showthread.php?p=53728658
and room
HTML:
http://storagecow.eu/index.php?dir=Xda%2FLG+G+Flex%2FStock%2F
Greetings Artur.
Mine was messed up. I think it was cause im odex. After a while it went and made itself a supersu BL. Weird
So he was trying to install the "latest android" but he only managed to ruin the phone, it doesn't turn on, it just stays at the LG logo screen with some red text on the top left corner that says: " [LGE_SECURITY] ERROR: boot image signature Critical Failure: unable to start kernel. Unrecoverable bootloader: error (0x00000002)." He says he saw a tutorial on this board that explained how to "unlock and jailbreak" the phone so that he could install anything on it, problem is he didn't follow the instructions properly he forgot to "unlock the bootloader" whatever that means and now the phone won't start, any ideas on how to fix this?
Hi,
I have a feeling he may have flashed a lollypop image not made for that device. If so, a service center may be the only way to fix the device hopefully.
I will have your thread moved to your device section for other opinions.... Here,
> LG Optimus 4X HD > Optimus 4X HD Q&A, Help & Troubleshooting
Good luck!
There is some kind of lg protection in bootloader, it says same thing if you flash custom recovery (I think in your case kernel) without unlocking bootloader. (it happend to me when I was unlocking my phone)
Anyway you can easily fix it by flashing stock rom http://forum.xda-developers.com/showthread.php?t=2069723
Just advice for you if you try to flash it - there is a step in that tut where you put out battery - I wasn't able to power on my O4x without battery (of course connected to pc), so I did it with battery in phone. Just power off your mobile and hold volume down button and connect to your pc.
Need help to unbrick my LG G Flex F340L software version f340l20b. It was rooted using towelroot. later I installed SuperSu app. But due to this OTA update was not installing. once downloaded during installi it was giving an error like "Your device is suspected in rooting. System update is not available for rooted device".
Later I installed flashify app from play store and tried flashing CWM recovery. Once recovery installed, phone tried to reboot to recovery where I got Secure booting error message. But the most terrible thing happened immediately after that. During that time OTA update downloaded once again and started installing. immediately after reboot, my phone is stuck in below screen. Now that its almost 3 days, my phone is in the same state. Even if I connect it to PC, though it seems that the phone is switched off, in PC I can see quite a few disk drives prompting for formatting those.
ERROR: Boot certification verify
[710]----------------------------------------------------------------
[710]
[720]Secure Booting Error
[720]Cause: Boot certification verify
[720]
[720]----------------------------------------------------------------
Seeking your expert help to recover my mobile, since this is dead for the last few days.
sayeed_992 said:
Need help to unbrick my LG G Flex F340L software version f340l20b. It was rooted using towelroot. later I installed SuperSu app. But due to this OTA update was not installing. once downloaded during installi it was giving an error like "Your device is suspected in rooting. System update is not available for rooted device".
Later I installed flashify app from play store and tried flashing CWM recovery. Once recovery installed, phone tried to reboot to recovery where I got Secure booting error message. But the most terrible thing happened immediately after that. During that time OTA update downloaded once again and started installing. immediately after reboot, my phone is stuck in below screen. Now that its almost 3 days, my phone is in the same state. Even if I connect it to PC, though it seems that the phone is switched off, in PC I can see quite a few disk drives prompting for formatting those.
ERROR: Boot certification verify
[710]----------------------------------------------------------------
[710]
[720]Secure Booting Error
[720]Cause: Boot certification verify
[720]
[720]----------------------------------------------------------------
Seeking your expert help to recover my mobile, since this is dead for the last few days.
Click to expand...
Click to collapse
Have you tried any of this?
http://forum.xda-developers.com/showthread.php?t=2644083
daggablade said:
Have you tried any of this?
http://forum.xda-developers.com/showthread.php?t=2644083
Click to expand...
Click to collapse
Problem is I can't put my phone in download mode. Whatever I;m trying, it puts me in a logo screen with security verification error on top.
Sorry for my bad english.
you are safe
sayeed_992 said:
Problem is I can't put my phone in download mode. Whatever I;m trying, it puts me in a logo screen with security verification error on top.
Sorry for my bad english.
Click to expand...
Click to collapse
hi frend.
i can help you.
i need some more details of your problem.
send me your team viwer id and pass, i will see the prob and discuss the solution
leave a msg in pm when i m offline
sayeed_992 said:
Problem is I can't put my phone in download mode. Whatever I;m trying, it puts me in a logo screen with security verification error on top.
Sorry for my bad english.
Click to expand...
Click to collapse
Tell more details... And Download ToT and KDZ of Your phone Already
Sent from My LG G Flex LG-F340K Stock KitKat V20D on LTE Network using XDA Free Mobile app
Need few files...
daggablade said:
Have you tried any of this?
http://forum.xda-developers.com/showthread.php?t=2644083
Click to expand...
Click to collapse
Can anyone help me by providing below files from any working LG G Flex with software version f340l20b? Planning to try this, sinc eI have no option left..... http://forum.xda-developers.com/showthread.php?t=2582142
PrimaryGPT.img
modem.img
sbl1.img
dbi.img
aboot.img
rpm.img
boot.img
laf.img
misc.img
persist.img
recovery.img
tz.img
hacklockx said:
hi frend.
i can help you.
i need some more details of your problem.
send me your team viwer id and pass, i will see the prob and discuss the solution
leave a msg in pm when i m offline
Click to expand...
Click to collapse
Thanks for sharing similar experience in a different thread. I installed CWM in my LG G Flex f340l20b. Once after that, while OTA update getting installed, my phone gets into this situation where there is no download/recovery mode, only LG logo comes in the screen along with security error. phone is getting detected as qhsusb_bulk and getting too many disk drives asking me to format those.
sayeed_992 said:
Thanks for sharing similar experience in a different thread. I installed CWM in my LG G Flex f340l20b. Once after that, while OTA update getting installed, my phone gets into this situation where there is no download/recovery mode, only LG logo comes in the screen along with security error. phone is getting detected as qhsusb_bulk and getting too many disk drives asking me to format those.
Click to expand...
Click to collapse
Do you have tot or kdz file?
You can extract these file from kdz or tot.
Only 10 files are needed
---------- Post added at 11:33 PM ---------- Previous post was at 11:32 PM ----------
hacklockx said:
Do you have tot or kdz file?
You can extract these file from kdz or tot.
Only 10 files are needed
Click to expand...
Click to collapse
Thats method is too clear.
1) U need 10 files aboot, boot, laf ,dbi ,sbl1, rpm, tz modem, recovery, misc.
U can extract these file from tot or kdz using lg firmaware extractor.
Note....kdz doesnt have misc file and it doesnt matter so dont worry
2) you need to install qualcomm driver and if yellow mark then disable digital signature enforcemt.
3) copy these file to unbrick very partiton tool folder.
Note..
If u extract these file from kdz or tot then these file files will be in .bin format then you need to simply rename the extension from.bin to .img
4)
See the disk managemet on your pc and find which disk no. Your phone showing.
If showing disk then run 1hardidsk.bat/exe
If it say disk2 then 2hardisk.bat
5)
Keep in mind.
D802 d800 d801 d805 d803 all have same partition table for these 10 files.
So if u dont see any model in the kist choose d800 or d802..
After its says continue close the window
And swithc off your phone by long pressing power button for more than 15 second so that phone turned off.
After turned off press and hold vol up button and conncet to pc.
If you stuck in download mode screen and didn't get firmware update screen
Then do this trick.
Switch off.
Press and hold vol up and connect to pc.
As u see download mode scree.
Keep pressing vol up many times
Around 30 times.
f340l20b bricked
Need help to unbrick my LG G Flex F340L software version f340l20b. It was rooted using stump root. no twrp/cwm backup file.
few days back I installed SuperSu app and removig the un-necessary apps. mistakenly i select the one of the widget file and delet/unintall it.
it was working good but for any reason i restarted my phone..... huh.... it has a boot loop of LG logo and ULteA repeatedly, no recover mood except flash mood.
i tried multiple time kdz firmware and lg mobile support tool with imei but got stucked at 49% every time.
plz help me to get ride this problem ....
Hi,
I mistakenly ported wrong recovery image to my LG G flex LS995ZV3 and it stuck into
"fastboot mode started "
"udc_start()"
Now I have no recovery installed on my device.
I tried these things
1. Went to hardreset screen and selected yes twice [failed and again came to fastboot mode started in a second]
2. Tried LG flash tool 2014 and KDZ to return back to stock but it returned everytime that "Check the device is connected and try again" also it did not read phone information and flash tool exit every time [failed]
3. Tried TOT+DL method but when the software says "ready " on COM41 ,I unplugg the USB and put it again but nothing happen...
Please help me Please Please
Recovered It with Universal Dl
shahbaz.ahmad444 said:
Hi,
I mistakenly ported wrong recovery image to my LG G flex LS995ZV3 and it stuck into
"fastboot mode started "
"udc_start()"
Now I have no recovery installed on my device.
I tried these things
1. Went to hardreset screen and selected yes twice [failed and again came to fastboot mode started in a second]
2. Tried LG flash tool 2014 and KDZ to return back to stock but it returned everytime that "Check the device is connected and try again" also it did not read phone information and flash tool exit every time [failed]
3. Tried TOT+DL method but when the software says "ready " on COM41 ,I unplugg the USB and put it again but nothing happen...
Please help me Please Please
Click to expand...
Click to collapse
Yeah I recovered my device using universl dll i.e., LGUP8974.dll