IMEI null and not signal, how can i recover? - G2 Q&A, Help & Troubleshooting

How can i restore null IMEI after to flash Cloudy g2 3.3 from Cloudy g2 2.2 via TWRP?.
I explain you:
I had installed cloudy g2 2.2, and i tried to flash via twrp the cloudy g2 3.3 (LP) rom, but when the instalation finished, the phone became black screen and appears in the PC many many partitions. (Tipical error Qualcom), then i fix this problem with SKR Tool and all works fine. After via download i flashed with LG FLash Tool a TOT file (orange) 10a, and d805 dll, but when flash finished (with sync error in 94%) and start to welcome and configuration screen, the phone is continuously restarted every 2 minutes and i not have signal.
Then with LG FlashTool 2014 i flashed a 20A ROM from my original brand (Claro) and works fine, without restarts but still no signal and not recognize MTP conecction to PC. (Problems of driver to recognize MTP connection)
When i digit *#06# says IMEI null, and that seem that imei is corrupt (not lose), but is very strange because when i flashed the tot with LG Flash Tool, in the LOG show the IMEI correcly.
I dont have a EFS Backup.
What can i to do?
Exist any method to recover the signal?, maybe flashing basebands?
I hope can you help me
Thanks you!!

well your problem sees to be very strange, once i had a similar issue, first time i bought my g2 i tried to install a cloudyg2 2.1 rom but i ended in fastboot mode, then i try to flash the rom again and it worked but i was getting that same error imei null and baseband unknown, i didn't have an EFS backup so i tought everything was lost, solution for me was easy, i flashed a kdz 20g for my d801 t-mobile and my imei and baseband were working again, maybe you should try reinstall using TOT method, or flash other different kdz for your moddel, sorry for my bad english and regards

Thanks!, i tried to install a 20A kdz, and 10A vi TOT, and cannot recover my signal and imei null, also install cloudy g2 2.2 again, and works fine except for IMEI signal.
I dont know how can fix it

Related

[HELP NEEDED] LG G2 D802 won't boot and in download mode it says model is F380K

Hi everyone,
I am having issues with this phone of mine. Here is a background of it:
My phone is rooted and is running rayglobe rom. I tried updating the update that it gave me and made me stuck in bootloop.
Now I downloaded another rom, which I don't remember since this happened december 2013. after flashing, it does not boot and does not make me go to TWRP anymore. Now I tried using download mode to restore my phone. but eveytime I try to flash (using the 2 methods I saw in the thread), either it hangs at 49% or the other one does not start flashing because it says I have inconsistent dll? I downloaded a D802 stock rom and tried flashing via download mode and it says that I have different model (F380K). Now I tried downloading a dll and F380K stock rom, but won't allow me because it says that my phone is D802. But when I go to download mode it is korean and it says F380K.
I think I have flashed a korean rom before which made this incident happen, but do you have any idea how I can restore this?
Thank you all in advance.
If this was me, I would do a factory reset.
sounds like you should go back to stock firmware.
http://forum.xda-developers.com/showthread.php?t=2432476
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=xxxxxxxxxxxxxxxxxx<YOUR IMEI NO.
First check what exactly phone model in Internet Browser. Then download TOT and flash back to stock.
xaneybert said:
Hi everyone,
I am having issues with this phone of mine. Here is a background of it:
My phone is rooted and is running rayglobe rom. I tried updating the update that it gave me and made me stuck in bootloop.
Now I downloaded another rom, which I don't remember since this happened december 2013. after flashing, it does not boot and does not make me go to TWRP anymore. Now I tried using download mode to restore my phone. but eveytime I try to flash (using the 2 methods I saw in the thread), either it hangs at 49% or the other one does not start flashing because it says I have inconsistent dll? I downloaded a D802 stock rom and tried flashing via download mode and it says that I have different model (F380K). Now I tried downloading a dll and F380K stock rom, but won't allow me because it says that my phone is D802. But when I go to download mode it is korean and it says F380K.
I think I have flashed a korean rom before which made this incident happen, but do you have any idea how I can restore this?
Thank you all in advance.
Click to expand...
Click to collapse
I faced similar problem with D800. I had the correct dll and the firmware but it failed saying my phone model was different (I think its because I tried the "upgrade recovery" option on the LG PC software by selecting a different model).
My phone was passing the LG screen and stuck at android boot screen.
What I did:
Pushed a kitkat based rom for D800 to sdcard using adb on Linux (on windows adb failed to recognise the device).
Then adb reboot recovery and flashed the rom.
Then I was able to flash the factory image.

Lg g2 d805 brick 49%

hi, i instaled a 4.2.2 d802 rom (custom recovery) on my d805 and this brick my phone, i have unknown imei and constant reboot, i cant put a d805 rom because the phone say he is a d802 . i trie lg flash tool metod but is the same because they thing its an d802. my questios is the next: can i obligate to lg flash tool, to flash a d805 rom ?
seba4321 said:
hi, i instaled a 4.2.2 d802 rom (custom recovery) on my d805 and this brick my phone, i have unknown imei and constant reboot, i cant put a d805 rom because the phone say he is a d802 . i trie lg flash tool metod but is the same because they thing its an d802. my questios is the next: can i obligate to lg flash tool, to flash a d805 rom ?
Click to expand...
Click to collapse
up!
I made the same mistake. What you need to do is to flash a d802 4.2.2 rom (I used the UK one), and it will flash, but be really buggy. You need to rush to the software information screen and enable developer options by clicking on the build version. It might reboot before you can, so you need to be patient. Enable Airplane mode, sometimes it helps. After you enable Developer, you need to toggle Android Debugging.
When that's done, you need to root and flash a recovery. After that, you're basically home free - flashing the d805 radios will make the phone stable, or you can sideload CM11 or another AOKP rom (plus the radios again) to have a working phone.

Help w/possible bricked G2!

Folks,
I gave my rooted (mahdi rom) ATT G2 to my teenage son seeing I was no longer using it. He said he tried to update the Mahdi ROM and now it is bricked. From my questioning him all I know is when he was installing the mahdi update, but he did not flash the D800 patch. Noticing there was a problem I think he tried to re-flash recovery or something. All he would get is "fastboot mode".
I think I am a pretty smart guy and have been on XDA for years flashing and what not with no issues - but this one has me stumped. These are the steps I have taken:
1) Finally got it into download mode and when I try to flash the tot file for ATT, it says incorrect model. Says the model is the D801 (t-mobile)! I was like what?
2) So I tried to flash the D801 tot and it seemed to work, but the flash would ultimately "Fail" in the LG Flash Tool. It would boot up into the t-mobile rom but I would get errors and reboots - very unstable. AND the IMEI was wiped!
Does anyone have any ideas what I can try next? I would like to somehow change the model back to the D800 and flash the ATT tot file. Maybe it is truly just bricked!?!?
Any help would appreciated! Thanks!
madgalaxy said:
Folks,
I gave my rooted (mahdi rom) ATT G2 to my teenage son seeing I was no longer using it. He said he tried to update the Mahdi ROM and now it is bricked. From my questioning him all I know is when he was installing the mahdi update, but he did not flash the D800 patch. Noticing there was a problem I think he tried to re-flash recovery or something. All he would get is "fastboot mode".
I think I am a pretty smart guy and have been on XDA for years flashing and what not with no issues - but this one has me stumped. These are the steps I have taken:
1) Finally got it into download mode and when I try to flash the tot file for ATT, it says incorrect model. Says the model is the D801 (t-mobile)! I was like what?
2) So I tried to flash the D801 tot and it seemed to work, but the flash would ultimately "Fail" in the LG Flash Tool. It would boot up into the t-mobile rom but I would get errors and reboots - very unstable. AND the IMEI was wiped!
Does anyone have any ideas what I can try next? I would like to somehow change the model back to the D800 and flash the ATT tot file. Maybe it is truly just bricked!?!?
Any help would appreciated! Thanks!
Click to expand...
Click to collapse
if you can successfully root device with towelroot(best choice since it is not device specific) then your best bet is to copy d800 build.prop(or to play it safe edit the build.prop model number from LG-D801 to LG-D800) into system/ give it rw-r--r-- pemissions and reboot into download mode, it should say you have d800 and you should be able to flash back to d800 tot(might want to be using d800 dll that ignores model check too just in case)

sim not detected after flashing stock D800 tot

I flashed JB stock D800 rom tot through LG flash tool. After that sim card is not detected by phone. Phone's actual model is D800 as I checked on the motherboard while it had D80220c rom before.
I have a backup of EFS and Nandroid backup too,
What to do?
ahsanshah said:
I flashed JB stock D800 rom tot through LG flash tool. After that sim card is not detected by phone. Phone's actual model is D800 as I checked on the motherboard while it had D80220c rom before.
I have a backup of EFS and Nandroid backup too,
What to do?
Click to expand...
Click to collapse
Update. Sim has been detected. I just switched off phone for few minutes and turned on

A D801 with D802 stock rom installed, would like to restore to the Stock D801, Help.

brought a faked d802 from internet, as this is actually D801 (opened back cover and checked the motherboard to confirmed), it has been installed the D802 stock rom.
Below is problems may related this incompatible rom installed.
It can't do hard rest, stuck at "fastboot"
It can't install custom recovery using "TWRP installer", been told successful, but can't reboot to recovery.
Download mode shows, but seems not working, as I tried to restore D801 following this instruction, but can't communicate with this phone.
Can't update software from phone settings, met phone not register error
Seems IMEI isn't recognized by LG as well. But I can use it to callin and out.
It had SuperSu installed, seems working well.
What I m thinking is how to flash this phone to the proper d801 stock rom?
Thanks for any advice.

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