[Q] Unable to start kernel - LG Optimus 4X HD

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

Related

Motorola Razr I doesn't start anymore

Hi,
My phone boots until the Motorola Logo (M in a red point) but doesn't do anything else. And every 5 minutes, it restarts and stops at the same place. No animation, just stops like that, a rock with a red point ...
My phone is a Motorola Razr I, updated with the last version of android, no unlock, no root, 8months old, just a lambda user, never tried to root or unlock ... I did nothing before it crashed, it was in my pocket, no wifi ... it stopped alone and on restart, the Red Point of Motorola of Death is back ...
I can start the fastboot menu, but only "Shutdown" works. "Normal Powerup", "Recovery", "BP Tool" or "Factory" write the same log :
Booting with [...]
Failed to lock fuse, code = 0xa0b23d
Failed to lock fuse, code = 0xa0b23c
Fuse read failed bank = 4 SEP_RETURN = 0xa0b23c
Fuse read failed bank = 4 SEP_RETURN = 0xa0b23c
Click to expand...
Click to collapse
I searched on Xda or with my friend Google, but nothing works because every indicated solution is used with a working recovery mode ...
Did you already meet this kind of problem ? Is it a hard brick ? Can I use my phone like a doorblocker ?
Thanks for your incoming help
LanceOmelette
PS :sorry for my english ... (swiss-french inside ...)
PPS : need more informations ? It will be a pleasure to give them ... if I know how to find it (android noob inside)
PPPS : I hope, I was clear in my description ...
LanceOmelette said:
Hi,
My phone boots until the Motorola Logo (M in a red point) but doesn't do anything else. And every 5 minutes, it restarts and stops at the same place. No animation, just stops like that, a rock with a red point ...
My phone is a Motorola Razr I, updated with the last version of android, no unlock, no root, 8months old, just a lambda user, never tried to root or unlock ... I did nothing before it crashed, it was in my pocket, no wifi ... it stopped alone and on restart, the Red Point of Motorola of Death is back ...
I can start the fastboot menu, but only "Shutdown" works. "Normal Powerup", "Recovery", "BP Tool" or "Factory" write the same log :
I searched on Xda or with my friend Google, but nothing works because every indicated solution is used with a working recovery mode ...
Did you already meet this kind of problem ? Is it a hard brick ? Can I use my phone like a doorblocker ?
Thanks for your incoming help
LanceOmelette
PS :sorry for my english ... (swiss-french inside ...)
PPS : need more informations ? It will be a pleasure to give them ... if I know how to find it (android noob inside)
PPPS : I hope, I was clear in my description ...
Click to expand...
Click to collapse
I would try reflashing the original firmware using Motorola's RSD Lite Flash Tool
if you are still on warranty send it back to the seller
totex71 said:
I would try reflashing the original firmware using Motorola's RSD Lite Flash Tool
Click to expand...
Click to collapse
Thanks Totex.I tried : the log is :
Getvar max-download-size
Downloading ...
downgraded security version
update gpt_main version failed
preflash validation failed for GPT
Fastboot command failed
Click to expand...
Click to collapse
and in RSD Lite :
Status : Failed flashing process 1/11 flash gpt "gp_signed" -> phone return FAIL
Click to expand...
Click to collapse
mmmmmh I presume it's bad ... very bad ... :crying:
Thanks ICuaI, I keep a small hope to not use this last advice
LanceOmelette said:
Thanks Totex.I tried : the log is :
and in RSD Lite :
mmmmmh I presume it's bad ... very bad ... :crying:
Thanks ICuaI, I keep a small hope to not use this last advice
Click to expand...
Click to collapse
Is there ICS or JB on it? and did you try to flash ics?. if so, try the latest jelly bean firmware
Which firmware did you try to flash? I think you need this one:
http://sbfdownload.droid-developers.org/smi/CFC_9.8.2I-50_SMI-26_S7_USASMIJBRTEU.xml.zip
It is retail eu jelly bean
via RazR I & Tapatalk 4
Thanks
but no ...
It didn't work ... now, it failed on step 2
Log on phone :
Getvar max-download-size
Downloading ...
Flashing gpt ...
OEM fb_mode_set
Fastboot command failed
Click to expand...
Click to collapse
which version of RSD-Lite do you use? What did you try?
Come on, tell us a little bit more. With "No it does not work" we cannot help you.
Ok ... sorry ... I will try to do my best :
RSD Lite 6.0 / Windows 8 / I presume Jelly Bean was my last version on my phone because I checked 1 day before for any update.
The informations on fastboot flash mode :
AP Fastboot Flash Mode (secure boot)
20.25 (sha - [...])
IFWI Info: 42.26
eMMC Info: Size 8GB
Barcode: [...]
Battery (Okay): 3.5v (temp 29.0)
Connect USB Data Cable
ROM-Key: Motorola-Key
Modem Status: Secure
Click to expand...
Click to collapse
I tried to flash my phone with the firmwire you gave me
Connect my phone on RSDLite with USB, Select the xml file and start the process. That stopped after few seconds on step 2
All others exemples found on Google to rescue my phone used the recovery mode or an other option given by the fastboot mode : the probem is every option in the fastboot mode (except Power Off) crashes my phone. So I didn't do lot of things finally ...
Can I give you more informations ?
LanceOmelette said:
Ok ... sorry ... I will try to do my best :
RSD Lite 6.0 / Windows 8 / I presume Jelly Bean was my last version on my phone because I checked 1 day before for any update.
The informations on fastboot flash mode :
I tried to flash my phone with the firmwire you gave me
Connect my phone on RSDLite with USB, Select the xml file and start the process. That stopped after few seconds on step 2
All others exemples found on Google to rescue my phone used the recovery mode or an other option given by the fastboot mode : the probem is every option in the fastboot mode (except Power Off) crashes my phone. So I didn't do lot of things finally ...
Can I give you more informations ?
Click to expand...
Click to collapse
Here's your problem. You need RSD 6.14. Other versions are too old to recognize the new Moto phones.
tatazeuz said:
Here's your problem. You need RSD 6.14. Other versions are too old to recognize the new Moto phones.
Click to expand...
Click to collapse
I just tried with RSD 6.1.4 and 6.1.5, same error : OEM fb_mode_set / Fastboot command failed.
I will go to my seller this afternoon and try to use my warrant.
Thanks for your help :-/
LanceOmelette said:
I just tried with RSD 6.1.4 and 6.1.5, same error : OEM fb_mode_set / Fastboot command failed.
I will go to my seller this afternoon and try to use my warrant.
Thanks for your help :-/
Click to expand...
Click to collapse
Go to the xml and delete the command that fails, in this case OEM fb_mode_set
It was an idea I found too but I didn't know the utility of this line and I didn't want to have a brocken version ...
But now my phone is in the hand of my seller ... I can only pray to have it as soon as possible ...
Thank you everybody for your help It was a pleasure to ask you a question The answers were fast and understable for me
I will give you the result of the investigation of my seller (2weeks to 1month) if I don't forget ...
LanceOmelette said:
It was an idea I found too but I didn't know the utility of this line and I didn't want to have a brocken version ...
But now my phone is in the hand of my seller ... I can only pray to have it as soon as possible ...
Thank you everybody for your help It was a pleasure to ask you a question The answers were fast and understable for me
I will give you the result of the investigation of my seller (2weeks to 1month) if I don't forget ...
Click to expand...
Click to collapse
I deleted fb_mode and it all flashes like it should. I think it just sets it up on fastboot or smth like that
Sorry for the delay, I'm on a trip around the world and I just received my phone back from the seller. But like I thought : no discussion, no message to give the reason or the solution. My phone is back, they made a big hardreset.
Thank you, everybody for your help. I learn some new things
Bye
Lance

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.

[Q] Error: boot image signature

I need your help guys.
I did a mistake and root the phone before i unlocked bootloader of my LG p880.
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!
i can turn my phone in S/W upgrade mode and connect it with pc.
My phone is recognized by the LG support tools but can not be connected.
What can I do now?
mihabite said:
I need your help guys.
I did a mistake and root the phone before i unlocked bootloader of my LG p880.
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!
i can turn my phone in S/W upgrade mode and connect it with pc.
My phone is recognized by the LG support tools but can not be connected.
What can I do now?
Click to expand...
Click to collapse
You can search and read as this question is asked five times a week.
SimonTS said:
You can search and read as this question is asked five times a week.
Click to expand...
Click to collapse
i know, but i do not find what to do if KDZ upgrade is not recognize my phone.
mihabite said:
i know, but i do not find what to do if KDZ upgrade is not recognize my phone.
Click to expand...
Click to collapse
usb drivers. is answered again yesterday.

Help! my son ruined my LG Optimus 4X HD

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.

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
Click to expand...
Click to collapse
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.
Click to expand...
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

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