Database Develop

[Q] Unable to start kernel

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 ?
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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.
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well
SimonTS said:
First Rule of XDA;
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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

Help save my phone! :(

Hi people
Yesteday i bough a LG 4X and i wanted to put CM 10 on it.
I followed the normal instructions, but something went terrible wrong.
My can't get passed the loading LG logo now, and when i try to go to recovery i tells me the following.
ELGE_SECURITY3 ERROR: boot image signature
Critical failure: Unable to start kernel.
Unrecoverable bootloader error (0x0000002).
I have tried this guide:
http://forum.xda-developers.com/showthread.php?t=1861854
and this:
http://forum.xda-developers.com/showpost.php?p=38838927&postcount=7&nocache=1&z=6539526249427472
I both cases i starts off well but then the USB suddenly wont reconize my phone and the screen turns gray.
Can anybody help !?!?!

install proper usb drivers , lg mobile support tool
try inserting the usb with pulled battery while holding vol down, after you accesd the download mode reinsert battery and follow one of the above guides. try it multiple times if you cant acces the download mode at the forst time
Sent from my LG-P880 using xda app-developers app

You didn't unlock a bootloader but you've installed custom recovery.
Use a KDZ to flash stock ROM.

kaad87 said:
Hi people
Yesteday i bough a LG 4X and i wanted to put CM 10 on it.
I followed the normal instructions, but something went terrible wrong.
My can't get passed the loading LG logo now, and when i try to go to recovery i tells me the following.
ELGE_SECURITY3 ERROR: boot image signature
Critical failure: Unable to start kernel.
Unrecoverable bootloader error (0x0000002).
I have tried this guide:
http://forum.xda-developers.com/showthread.php?t=1861854
and this:
http://forum.xda-developers.com/showpost.php?p=38838927&postcount=7&nocache=1&z=6539526249427472
I both cases i starts off well but then the USB suddenly wont reconize my phone and the screen turns gray.
Can anybody help !?!?!
Click to expand...
Click to collapse
thats the problem now. 3 months ago that i wanted to unlock the bootloader , i just typed : adb drivers and got them. now if u search for adb drivers u will find a million posts that say nothing, because no one searches. since 3 months ive seen at least more 20 posts about unlocking the bootloader......... anyway. go download android sdk , the 32 bit version even if u r on windows x64. install , run, update it. u will get the drivers right. after that u can easily unlock the bootloader and install team win recovery or cyanogen recovery. use the all in one toolkit of afro. thats all.

Stuck on LG Logo Screen

I attempted to flash the Marshmallow update via TWRP. The flash seemed to finish successfully, but upon rebooting I am stuck on the LG logo screen.
I am able to get to Download mode, but don't know what I can try from here.
I have already tried the LG Flash tool and it fails at 9%.
Any help would be appreciated.
TIA

Is there an error message at 9%? Have you tried LG Bridge or UP?

martinsavvy said:
Is there an error message at 9%? Have you tried LG Bridge or UP?
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Click to collapse
At the 9%, it says Upgrade stopped due to an error.
LG Bridge won't see the phone properly. It initially says connected but then drops the connection.
I am not familiar with UP, is that something I should try?
EDIT: LG UP Worked. Thank you very much!

tomr98 said:
At the 9%, it says Upgrade stopped due to an error.
LG Bridge won't see the phone properly. It initially says connected but then drops the connection.
I am not familiar with UP, is that something I should try?
EDIT: LG UP Worked. Thank you very much!
Click to expand...
Click to collapse
Good to hear man!

tomr98 said:
I attempted to flash the Marshmallow update via TWRP. The flash seemed to finish successfully, but upon rebooting I am stuck on the LG logo screen.
I am able to get to Download mode, but don't know what I can try from here.
I have already tried the LG Flash tool and it fails at 9%.
Any help would be appreciated.
TIA
Click to expand...
Click to collapse
I have the exact problem, LG Up successfully completes flashing and the whole process, did it with LG Bridge too but phone still can't get past logo, maybe my batter is drained?! I can enter in download mode and my pc, LG Up and LG bridge all see my phone as Lg H812. i am desperate.

Bricked! Help me please.

Hello everyone
My brother's Mi A2 is bricked for no reason. I tried to solve this problem and searched a lot but didn't manage to solve it. I hope you can help.
* before telling my story here is some stuff to know:
- The phone was running official firmware and bootloader is locked, I've never played with it's software before.
- Oem unlocking option isn't turned on.
- The phone doesn't go to recovery mode, only fastboot or regular boot.
- I used EDL mode in every flashing attempt.
- I don't remember that there is a mi account assigned to the device.
* Here is what happened:
- The phone suddenly shut down during a call and never passed the AndroidOne logo after that.
- Tried EDL mode and miflash to flash the latest firmware. Flashing completed successfully but the phone still stuck on the androidone logo.
- Did it again and again but the result was constant.
- Tried flashing older firmware "Oreo 8.1" but during flashing system.img the process stopped with an error. (I don't remeber what the error was).
- I tried to turn on the phone but after showing AndroidOne logo This message appeared:
"Your device is corrupt. It can't be trusted and will not boot.
Visit this link on another device: g.co/ABH"
and the device shuts down in a minute.
Hint: Sometimes when I try to turn one the phone the above message appears after androidone logo and sometimes the device just keep showing the logo.
- Trying to flash any firmware version by using Miflash Beta gives an error message "Can not found programmer file" immediately. when I try again it gives: "can't read from port COM4", Changing the port gives the same error with different port number.
-When I use any other version of "Portable miflash", The flashing process starts normally but fails when trying to flash "dsp.img", giving an error of "writing time out".
- I tried reinstalling all drivers needed with no change at all.
I hope that you guys can help me solving this problem.
Thank you so much!

Try EDL mode opening your phone...

Badotti said:
Try EDL mode opening your phone...
Click to expand...
Click to collapse
I did.
Bootloader is locked, so EDL mode was the only way. But now I get error writing timed out while flashing any firmware version.

Ahmed A. Mohsen said:
I did.
Bootloader is locked, so EDL mode was the only way. But now I get error writing timed out while flashing any firmware version.
Click to expand...
Click to collapse
https://www.youtube.com/watch?v=wav1xNdJzII
Youtube you find several tutorials, work and open the phone ...

Badotti said:
https://www.youtube.com/watch?v=wav1xNdJzII
Youtube you find several tutorials, work and open the phone ...
Click to expand...
Click to collapse
I opened the phone and used edl mode already but the problem is still present.

up

Have you tried to use qfil? See in the 3d dedicated to conversion A2 <> 6x

HTCDevil said:
Have you tried to use qfil? See in the 3d dedicated to conversion A2 <> 6x
Click to expand...
Click to collapse
This needs bootloader to be unlocked and my device's bootloader is locked.
Any solutions?

Go to service center this is last option you save RIP mi a2 ?

As I can see from picture you have posted, your bootloader is unlocked.

SkullSatan88 said:
Go to service center this is last option you save RIP mi a2
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They refused to receive my device because I bought it from another country.

bomil said:
As I can see from picture you have posted, your bootloader is unlocked.
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Click to collapse
when I checked bootloader status in the beginning it was locked.
Are you sure that it's now unlocked?

Text me on telegram. @dejavutr

Razer Phone 2 died to me :(

Hello, I have a Razer Phone 2, yesterday I uploaded a ROM on it, everything seems to have installed after whether the phone displayed a notification "Your device is corrupt. It can’t be trusted and may not work properly." then the notification disappeared and the phone will appear on the Razer powered android logo . after pressing vol - and the phone switch, the bootloader starts but I can not do anything in it, neither recovery mode nor wipe userdata, after clicking them, it returns to the razer logo and stands I looked and tried everything but I can't do anything about it, is this the end of the phone or is there any chance to get it back?
Thank you for your help and sorry for the spelling (translator)

lukkiii96 said:
Hello, I have a Razer Phone 2, yesterday I uploaded a ROM on it, everything seems to have installed after whether the phone displayed a notification "Your device is corrupt. It can’t be trusted and may not work properly." then the notification disappeared and the phone will appear on the Razer powered android logo . after pressing vol - and the phone switch, the bootloader starts but I can not do anything in it, neither recovery mode nor wipe userdata, after clicking them, it returns to the razer logo and stands I looked and tried everything but I can't do anything about it, is this the end of the phone or is there any chance to get it back?
Thank you for your help and sorry for the spelling (translator)
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Click to collapse
Flash stock following instructions on Razer Developer portal

jonchance_84 said:
Flash stock following instructions on Razer Developer portal
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He follows the instruction and when entering the commands, <waiting for device> is shown . I have installed all the drivers

lukkiii96 said:
He follows the instruction and when entering the commands, <waiting for device> is shown . I have installed all the drivers
Click to expand...
Click to collapse
Installing drivers while phone is in fastboot mode too. Do checks while booted with adb devices and then boot into fastboot then run fastboot devices. If you get a device on each one, script should work. The pc sees a different device for each mode.

jonchance_84 said:
Installing drivers while phone is in fastboot mode too. Do checks while booted with adb devices and then boot into fastboot then run fastboot devices. If you get a device on each one, script should work. The pc sees a different device for each mode.
Click to expand...
Click to collapse
I think it's a hard brick, no command works, I guess I'll give up, is there any Razer service in Europe that could repair it for a fee?

lukkiii96 said:
I think it's a hard brick, no command works, I guess I'll give up, is there any Razer service in Europe that could repair it for a fee?
Click to expand...
Click to collapse
Could be a Win10 2004 build issue. Some have had luck either using an older win7 machine or loading up a linux vm in win10. U can let it take control of usb ports. It all stems from usb drivers in windows.
Don't know about service in europe. Im in Texas.

jonchance_84 said:
Could be a Win10 2004 build issue. Some have had luck either using an older win7 machine or loading up a linux vm in win10. U can let it take control of usb ports. It all stems from usb drivers in windows.
Don't know about service in europe. Im in Texas.
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Click to collapse
I followed your advice and used a computer with windows 7 everything flashed everywhere ok, only now when the phone turns on the message pops up "your device i corrupt. It can't be trusted and may not work properly" if something went wrong ?:crying:
Edit:It was enough to use the command fastboot flashing unlock_critical and everything works as it should, thanks a lot for your help, best regards