"Unknown Imei - D852" (Solved) - G3 Q&A, Help & Troubleshooting

First things first.. DO NOT TINKER WITH YOUR PHONE AT 3AM... sleep is gooooood!
Secondly..
I was stuck Crdroid with "Unknown baseband/imei" (flashing any other rom same issue)
Sim Status (everything was UNKNOWN)
Imei Information (Unknown)
Could not find a modem flash for D852 for the life of me, then stupid me remember DENEROM, and his "Canadian Post of all his workings" ( THANK YOU BY THE WAY DENE)
Now im running nougat so didnt even dawn on me to try flashing a LP modem..
But thats what fixed my issue ( like i said sleep is good )
Just flashing the modem for bell (since bell and rogers use the same crap) (overtop of nougat 7.1.1 cm 14.1) and restarted phone and voila!!
( yes every knowledgeable person is going to be like (duh no ****), but i like to break my phone just to fix it.. as simple as it was either way))
To everyone who tried to help thanks. :highfive: i can breathe now and will be keeping a backup of that modem file just for this issue in the future ( my problem had NOTHING to do with the EFS backup as i had tried 2-3 backups from previous working backups.)
i noticed i did not have the option to backup MODEM (need to find a modded twrp i guess to get that) as 3.0.0.0 does not have the modem backup option (least for me)
Just for anyone who has the same issue with their D852
Here is the link to XDA post by DENE (again all thanks goes to his post)
https://forum.xda-developers.com/lg-g3/development/canadian-d852-stock-bumped-rooted-rom-t3056843

wassco said:
Now I know this is a huge touchy subject, so feel free to PM me so as this doesn't get misconstrued by any means.
I had my D852 working fine, made the full backup with TWRP, i have all the EFS and all of that.
I flashed a rom, and somehow my IMEI is unknown.. even flashing the (which was working fine) recovery it still has the no sim card / no imei issue.
Now my IMEI is on the sticker on phone underneath battery... is there any possibly way to get this going again. Would PC SUITE work? (typing in my IMEI number on the phone? ) And when i do this do i just have it running normally in the OS or in firmware update mode?
again really sorry for the question.. i just dont want to have the phone without the modem/imei problem not solved.
Click to expand...
Click to collapse
What ROM do you use?

This happened after flashing Crdroid 1.8/1.9/2.0.
after clean installing from Cm 14.1 (dec 25th).
Im currently attempting to LG flash to stock to no avail.

Did you try to restore just the EFS partition?

Related

Need Help! N7100: No Service - IMEI: Null

Hey Guys, this is the first time this has happened. I was using my Note 2 and it got really slow (im on Hawkish Rom | Perseus Kernel) and i decided to reboot it. On reboot the device booted and got to the "Samsung" Logo and was stuck there! i rebooted a few times more, and pulled the battery but it was still the same problem! So i decided to flash my ROM again, now the phone successfully boots to the OS, BUT it keeps saying: com.android.phone has stopped! I tried to go into Settings and check if my IMEI number is okay but when i click on "Status" under "About" settings just crashes. I opened up the Phone App and hit *#06# and it says IMEI: NULL. My WiFi works fine, but i cant get any signal. I have always made frequent backups of my EFS partition. How do i fix this issue? As i have a lot of business calls i am missing right now! Thanks!
ok. first things first if IMEI is lost (happened to me once) Just try to recover EFS partition using your recovery (TWRP o CWM) just search the option.
the one thing that worked for me it was flashing a new version of a Rom I was using android revolution and it also got laggy so I reinstalled and...I lost my IMEI (like you) then I just flash wanamlite (G1 Modem) and i got back my imei .
hope it works.
(there is also a thread in the development section)
mikeuz said:
ok. first things first if IMEI is lost (happened to me once) Just try to recover EFS partition using your recovery (TWRP o CWM) just search the option.
the one thing that worked for me it was flashing a new version of a Rom I was using android revolution and it also got laggy so I reinstalled and...I lost my IMEI (like you) then I just flash wanamlite (G1 Modem) and i got back my imei .
hope it works.
(there is also a thread in the development section)
Click to expand...
Click to collapse
Ya thanks for the suggestion. I flashed a new rom and bam! Problem solved!
helpp
therockk said:
Ya thanks for the suggestion. I flashed a new rom and bam! Problem solved!
Click to expand...
Click to collapse
what rom did u flash? i ve same problem as you and no efs backup...really desperate
IEMI lost
mikeuz said:
ok. first things first if IMEI is lost (happened to me once) Just try to recover EFS partition using your recovery (TWRP o CWM) just search the option.
the one thing that worked for me it was flashing a new version of a Rom I was using android revolution and it also got laggy so I reinstalled and...I lost my IMEI (like you) then I just flash wanamlite (G1 Modem) and i got back my imei .
hope it works.
(there is also a thread in the development section)
Click to expand...
Click to collapse
Hi,
I was flashing a custom ROM and my IEMI became null.
I tried flashing official 4.3 ROM of my carrier but that did not solve the problem.
I have not done backup to EFS and thus I cannot use that option.
Would you please help me fix this?
Thanks

lost IMEI after flashing CM11 M5

After I flashed CM11 SNAPSHOT M5 on my Brazilian Optimus G E977 model (firmware version E97710d), I faced several crashes with "Subsystem crash" BSOD, with Demigod Handler issue or something like that . Several reboots later, the crashes stopped, however the mobile network was not working. Checked IMEI on status menu it was reported as null. I have a backup of EFS partition performed by FreeGee.
I tried all the tools available that I've found
1-flash a zip package containing the the 3 backed up .img files in CWM Recovery mode;
2-downloaded cwm-lgog_e977-brazil_10b-modem.zip from the EFS and MODEM backup/restore tutorial and flashed the modem zip package (replacing the modem.img with the one from my phone extracted with adb) ;
3-flashing stock firmware;
But still null IMEI and no network signal. Is there anything else I can try? Maybe if I get a specific file from another E977 model?
ksio89 said:
After I flashed CM11 SNAPSHOT M5 on my Brazilian Optimus G E977 model (firmware version E97710d), I faced several crashes with "Subsystem crash" BSOD, with Demigod Handler issue or something like that . Several reboots later, the crashes stopped, however the mobile network was not working. Checked IMEI on status menu it was reported as null. I have a backup of EFS partition performed by FreeGee.
I tried all the tools available that I've found
1-flash a zip package containing the the 3 backed up .img files in CWM Recovery mode;
2-downloaded cwm-lgog_e977-brazil_10b-modem.zip from the EFS and MODEM backup/restore tutorial and flashed the modem zip package (replacing the modem.img with the one from my phone extracted with adb) ;
3-flashing stock firmware;
But still null IMEI and no network signal. Is there anything else I can try? Maybe if I get a specific file from another E977 model?
Click to expand...
Click to collapse
my friend can u us any custom rom ?? if u have external modem error (subsystem crash error ) say me i have one idea
Yeah, I flashed stock firmware and performed a factory reset, it was clean. Then I proceed to root, install FreeGee, BusyBox and then CWM 6.0.4.7 and then flashed the CM11 M5 ROM, has been stable for a while, then it crashed. This is the report:
"DemiGod Crash Handler : Subsystem Crash! : External_modem (Undefined error)"
BTW, I performed a backup of EFS partition 3 img files with FreeGee.
I had to flash stock firmware once more due to crashing, it's completely unstable with CM11 M5, I'll flash CM11 M4 which was perfectly fine and see if it becomes stable.
EDIT: still crashing with CM11 M4, the latest CM ROM really screwed my phone.
EDIT 2: sent my phone to local repair service and the main board was replaced, with a new IMEI. It seems there was indeed a hardware issue. I had a SIM card which I had it adapted into microSIM format but it wasn't recognized by my OG. After the motherboard replacement, it's being recognized now. I have backed up EFS partitions and modem packages following the tutorials on Q&A. But I'm enjoying stock ROM, it has some nice features which I didn't find in CM11, I'll stick with it for a while. I don't believe there will be any more issues regarding CM11 though.
ksio89 said:
Yeah, I flashed stock firmware and performed a factory reset, it was clean. Then I proceed to root, install FreeGee, BusyBox and then CWM 6.0.4.7 and then flashed the CM11 M5 ROM, has been stable for a while, then it crashed. This is the report:
"DemiGod Crash Handler : Subsystem Crash! : External_modem (Undefined error)"
BTW, I performed a backup of EFS partition 3 img files with FreeGee.
I had to flash stock firmware once more due to crashing, it's completely unstable with CM11 M5, I'll flash CM11 M4 which was perfectly fine and see if it becomes stable.
EDIT: still crashing with CM11 M4, the latest CM ROM really screwed my phone.
EDIT 2: sent my phone to local repair service and the main board was replaced, with a new IMEI. It seems there was indeed a hardware issue. I had a SIM card which I had it adapted into microSIM format but it wasn't recognized by my OG. After the motherboard replacement, it's being recognized now. I have backed up EFS partitions and modem packages following the tutorials on Q&A. But I'm enjoying stock ROM, it has some nice features which I didn't find in CM11, I'll stick with it for a while. I don't believe there will be any more issues regarding CM11 though.
Click to expand...
Click to collapse
my friend .hey u here ? u have external moder error now ?
i have one answer this
No, mate, no errors after the mobo replacement. One of these days I installed CM11 M6 and there were no crashes or errors related to modem. As I said, it was a hardware issue, from what I read, the most probable cause was a not complete functional power state, which caused the tension to drop excessiely, crashing the OS, corrupting the EFS/modem software and wiping the phone IMEI.

No baseband- no IMEI not sure of anything at this point

I started with a fresh non altered I747m. The first thing I had to do was carrier unlock (PetroCAN sim) and then rooted the phone.
I pretty sure i did a cfroot and installed the newest pacman rom and all worked- just no internet ( the phone and texting worked) so I played with the APN for a while then decided to try a couple of MODEM zips (Rogers and AT&T) and flashed those in CWM.
Downhill fro there- No more SIM, no baseband- no IMEI no APN- could not even create an APN.
Tried diferent 511 ROMS (DU).
so then I did the even more stupid thing and retored the original NANDroid backup and now it is really bad- stuck on the samsung logo.
I did write down the IEMI number and I did check the baseband version (i did the check in like a dos screen on the phone) I747mluf0b1
What should I do now>?? i would be happy to return it all back to stock I really screwed this phone up bad
note: I did do a full nandroid backup before updated to 511 but i saw that there was no EFS folder (an this was when everything was working correctly)
So i think i the phone is toast..
Are you running the latest modem and bootloader?
I suggest you use Odin to flash the latest stock rom for your phone from sammobile.com to see of them either comes back.
I downloaded the correct i747m bell stock version that matches the buildprop I747MVLUFOB1
It is now in a softloop 'SAMSUNG' and sits.
it just came back up
Did you get the phone working?
That got it!!! YEAH!! I been working on this phone for days. All of a sudden the STOCK ROM is the best rom ever!!! hehe
If you have to restore to stock in the future, it is best to uncheck auto reboot in Odin. When you see the word reset in the status window, remove the usb cable, remove battery, replace batter, boot into stock recovery, and perform a full wipe. This helps to prevent the boot loop.

Fulmics rom d851

Anyone have problems installing the Fulmics rom on their D851? I've tried installing this rom several times but had problems with not cell signal and also problems with the phone not booting when I reboot it.
steventrannn said:
Anyone have problems installing the Fulmics rom on their D851? I've tried installing this rom several times but had problems with not cell signal and also problems with the phone not booting when I reboot it.
Click to expand...
Click to collapse
Yes, just installed on my D851 the night before last. It wiped out the EFS / IMEI data on the device. Luckily I had a backup of that data, after having the same issue on a G3 vs985, but in that case, I had flashed CloudyG3 v2.5.
Since both Fulmics and CloudyG3 ROMs use the Aroma installer, it seems very likely to be a problem with Aroma on G3 phones.
Go into settings / about phone and look at the IMEI to see if it is showing up there. It's not difficult to restore the IMEI if you have it backed up, but you have to do that before it gets wiped out. Other than that, there are tools which can write the IMEI to the phone, such as QPST. However that tool is not easy to use, unless you have experience with it.
Sent from my VS985 4G using Tapatalk
steventrannn said:
Anyone have problems installing the Fulmics rom on their D851? I've tried installing this rom several times but had problems with not cell signal and also problems with the phone not booting when I reboot it.
Click to expand...
Click to collapse
Had same problem, no cell after clean install. Just flash 30D/30E modem, both can be found on flashables thread. And that´s it.
steventrannn said:
Anyone have problems installing the Fulmics rom on their D851? I've tried installing this rom several times but had problems with not cell signal and also problems with the phone not booting when I reboot it.
Click to expand...
Click to collapse
HEY! there is a simple solution, You just need to flash modem files. Happened to me and after some research i flashed modem files on my D851 and everything is working.
http://ouo.io/XHV0Tj
Disclaimer: im just giving the solution that worked for me, i had the exact same issue. But still i assume no responsibility if god forbid anything goes wrong. Good Luck!!
Hi, i know the solution to your problems
for the signal problem : you have to flash the modems from recovery,
for the 2nd problem (not rebooting) : that's a common problem in fulmics rom , you have to shut the phone and then turn it on again.

Empty IMEI

Hi
Hoping someone here might be able to help as somehow I’ve messed up my IMEI.
I flashed alexndr stock rom over my stock rom with the force XEU option enabled as my default CSC is H3G. Everything worked fine but was failing safety net so decided to flash back to my stock rom with odin but now my IMEI is empty.
I have the EFS backup that Alexandra rom installer created but flashing this doesn’t seem to solve the problem and what’s strange is if I flash alexndr rom back onto my phone my IMEI comes back and everything works normally but with the stock rom its blank.
Anyone know how to fix it?
Thanks
andrewtjb said:
Hi
Hoping someone here might be able to help as somehow I’ve messed up my IMEI.
I flashed alexndr stock rom over my stock rom with the force XEU option enabled as my default CSC is H3G. Everything worked fine but was failing safety net so decided to flash back to my stock rom with odin but now my IMEI is empty.
I have the EFS backup that Alexandra rom installer created but flashing this doesn’t seem to solve the problem and what’s strange is if I flash alexndr rom back onto my phone my IMEI comes back and everything works normally but with the stock rom its blank.
Anyone know how to fix it?
Thanks
Click to expand...
Click to collapse
In the past is was mismatched baseband. But I've never had the issue so I dont know for sure
TheMadScientist said:
In the past is was mismatched baseband. But I've never had the issue so I dont know for sure
Click to expand...
Click to collapse
Thanks
I managed to solve it was definitely a baseband issue. It looks like when I flashed the alexandr rom it updated the baseband to DTD7 where as my my carrier firmware I was trying to flash back to was still DTC5.
I've flashed DTD7 firmware now and everything's back to working normally.

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