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Help LG G2 D800 (Critical Error)

M

Mehmood Ahmad Khan

Lurker
Hi Guys,
I have a LG G2 D800 which is bricked by me. And now there is no Recovery, no Fastboot Mode and when I boot then it displayed the msg of security error and then turned off. (screen is not blacked out it turned off).

The only way to make it on is trying to go into recovery and from there it display the white screen having text show in the figure.
Actually I want to flash Cloudy Rom on it and it displayed black screen for a very very long time then I clean flash it with blisspop and in blisspop it keeps on rebooting while the bootanimation of logo is irregular. And after some tries it bricked like this.

Flash Tool Message show this message (2 Different dll file 1.d800 and other is LG8974 in pictures).

Note : I did not tried that method of shorting the capacitors because my mobile is detecting in that white screen and I am using flash tool on that white screen. ( I don't know that is it possible to flash firmware from there )

@iowabowtech I almost read your all messages but did not find a solution on this one Can you please helped me out of this problem. Thanks
 

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I'm not positive but that does not look like the correct location to hexedit the model number. Typically, the very first instance of D800 would be the full model number followed immediately by the S/W version. But nonetheless, you are also having issues flashing the tot from the Demigod screen I see. Yes, I have flashed tot's from that screen but like yourself, I ran into the same issue and I'm not positive how I solved it. I remember trying several times and eventually it did flash the tot. Possibly try unplugging when the error comes up and retry? Wish I could be of more help on this one.

edit: few more ideas when you are on demigod screen and tot flash fails...try rebooting phone while still plugged in, watch device manager and see if it shows up as LGE AndroidNET (this is download mode). If YES, try to run LG Flash Tools and once the flash starts, and if you still have the option to enter download mode, do that after about 5-7 seconds into the flash effort.

If that fails, try a different com port. Normally not advised but perhaps when on Demigod screen, it may help. Try com port 5 through 10 specifically.

If all that fails, you'll be forced to short the capacitors.
 
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Thanks for your reply. Yes my phone is connected as LGE AndroidNET that's why I am avoiding the shortening of capacitors.
Now I am going to try it on a different computer. But FlashTool only works on COM Port 41 so can changing the port have any effect ?

And Please keep on replying because you are only hope for me now.

Edit : I am editing the same location. ( i.e. before the software version)
 
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Mehmood Ahmad Khan said:
Now I am going to try it on a different computer. But FlashTool only works on COM Port 41 so can changing the port have any effect ?
Click to expand...

Honestly I kind of doubt it would work, I'm just grasping at straws. The only time I was able to flash a tot from the Demigod screen was after I restored the phone from a QDLoader 9008 brick. Then it worked but that may be because there's some reflashing of partitions associated with that process and one of them is laf...or download mode. So it may have repaired it such that it would work from the Demigod screen because most accounts you'll find on the internet is that tot flashes tend to fail from Demigod. There's a few who say keep trying, unplugging, rebooting and basically cross your fingers that it's an issue of timing and multiple tries.

Bottom line, you will have no choice but to short the capacitors if random tries to flash the tot continue to fail. Sorry to give that news but I really do believe it's the correct answer in this case, short of getting very lucky.
 
iowabowtech said:
Honestly I kind of doubt it would work, I'm just grasping at straws. The only time I was able to flash a tot from the Demigod screen was after I restored the phone from a QDLoader 9008 brick. Then it worked but that may be because there's some reflashing of partitions associated with that process and one of them is laf...or download mode. So it may have repaired it such that it would work from the Demigod screen because most accounts you'll find on the internet is that tot flashes tend to fail from Demigod. There's a few who say keep trying, unplugging, rebooting and basically cross your fingers that it's an issue of timing and multiple tries.

Bottom line, you will have no choice but to short the capacitors if random tries to flash the tot continue to fail. Sorry to give that news but I really do believe it's the correct answer in this case, short of getting very lucky.
Click to expand...

Thank you very much, @iowabowtech for your reply's. You are right about shortening of capacitors. But now my imei number is showing NULL and unfortunately I don't have any backup so now how to resolve this ?
 
Mehmood Ahmad Khan said:
Thank you very much, @iowabowtech for your reply's. You are right about shortening of capacitors. But now my imei number is showing NULL and unfortunately I don't have any backup so now how to resolve this ?
Click to expand...

So did you already short the capacitors then? What exactly have you done thus far?

I've seen a null IMEI return to normal after the repair. Some have not.
 
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iowabowtech said:
So did you already short the capacitors then? What exactly have you done thus far?

I've seen a null IMEI return to normal after the repair. Some have not.
Click to expand...

No first I assume that the phone is showing in device manager so it is possible to flash firmware from this scree. Then after reading your reply's I short the capacitors and the phone is alive as considered.
But now there is NULL imei and I don't have any backup.

Note: I also have another G2 D800. Is it possible to backup efs from it the restore in NULL Imei G2 ?
If not then any other solution. Thanks.
 
Mehmood Ahmad Khan said:
No first I assume that the phone is showing in device manager so it is possible to flash firmware from this scree. Then after reading your reply's I short the capacitors and the phone is alive as considered.
But now there is NULL imei and I don't have any backup.

Note: I also have another G2 D800. Is it possible to backup efs from it the restore in NULL Imei G2 ?
If not then any other solution. Thanks.
Click to expand...

I'm honestly not sure what would happen if you restored your other phone's IMEI to this device so I cannot comment on that. The only methods I'm aware of for trying to restore a lost imei is either trying EFS Pro or the second part of the instructions here:

http://www.droidviews.com/how-to-backup-and-restore-lost-imei-on-lg-g2/
 
Also, I will guess you have already tried this simple solution but if not...power off phone, then remove SIM card. Turn on phone without SIM inserted. Once booted it will prompt you to install SIM. Do that and see if IMEI shows in settings at that time. If not, reboot phone and check settings one more time for IMEI.
 
iowabowtech said:
Also, I will guess you have already tried this simple solution but if not...power off phone, then remove SIM card. Turn on phone without SIM inserted. Once booted it will prompt you to install SIM. Do that and see if IMEI shows in settings at that time. If not, reboot phone and check settings one more time for IMEI.
Click to expand...

I tried this and also the QPST solution you post earlier but no luck so I think for this I should have to go to the market and restore IMEI with the help of Octobox ?
 
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