[Q] [Soft Brick] VS980. No baseband version or imei. - G2 Q&A, Help & Troubleshooting

Hello. I've been personally been coding Android and making recoveries as a hobby. However I quite never seen anything like this. My LG G2 VS980 has no baseband version or imei, in addition, there is no audio output. Not trough speakers or headsets however haven't tried Bluetooth nor using my Chromecast. There is another thread out there about the AT&T varient of the G2 with the same issue however there is no solution except restoring from a backup. My backups where lost when cwm factory reset my phone and I used adb sideload to get back onto CM. Does anyone have a backup of their ROM on the VS980? Hopefully I could restore from that backup and save my G2
Thanks

kasim101 said:
Hello. I've been personally been coding Android and making recoveries as a hobby. However I quite never seen anything like this. My LG G2 VS980 has no baseband version or imei, in addition, there is no audio output. Not trough speakers or headsets however haven't tried Bluetooth nor using my Chromecast. There is another thread out there about the AT&T varient of the G2 with the same issue however there is no solution except restoring from a backup. My backups where lost when cwm factory reset my phone and I used adb sideload to get back onto CM. Does anyone have a backup of their ROM on the VS980? Hopefully I could restore from that backup and save my G2
Thanks
Click to expand...
Click to collapse
Im also a newb to the g2,but not to rooting etc. And from what ive seen on this device it sounds like a efs backup related problem,maybe someone can chime in with help..if you need it there is a debloat stock vs980 rom in verizon subforum that will flash over the stock rom if that will help,i literally just flashed over my stock just fine. Good luck dude

this is a hard brick not soft brick...sorry sent it in...no way to restore IMEI after its gone. unless u made EFS back up

Related

[Q] Try out vanilla android

I have rooted my I337, installed clockworkmod with loki and backed up with CWM to my external SD and moved it to my computer. I am interested in trying vanilla android but I am not entirely sure I want to completely migrate yet, I am still attached to some features like slow motion camera and IR blaster.
Have I sufficiently backed up my device to get it back exactly the way it is if I flash another rom? Does restoring from this backup flash back to touchwiz or do I have to flash again then restore?
How do I make sure the newest ATT update doesn't mess me up if I go back?
Is it possible to switch between the two? The S4 is my first android but I kind of recall seeing people switch between roms. Is that possible in this case?
as long as you backed everything up in CWM, then later if you decide to restore your backup your phone will be reset to its current state, exactly as it was when you made your backup. that is why in almost every single ROM thread the Dev says to BACKUP. If anything goes wrong you can simply restore the backup and be up and running again with no setup.
so flash away my friend, flash away....
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Questions and Help issues go in Q&A and Help section
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HardOnChairs said:
I have rooted my I337, installed clockworkmod with loki and backed up with CWM to my external SD and moved it to my computer. I am interested in trying vanilla android but I am not entirely sure I want to completely migrate yet, I am still attached to some features like slow motion camera and IR blaster.
Have I sufficiently backed up my device to get it back exactly the way it is if I flash another rom? Does restoring from this backup flash back to touchwiz or do I have to flash again then restore?
How do I make sure the newest ATT update doesn't mess me up if I go back?
Is it possible to switch between the two? The S4 is my first android but I kind of recall seeing people switch between roms. Is that possible in this case?
Click to expand...
Click to collapse
the google edition ROM's have a working IR blaster and i've seen a few references to the camera being ported (though i do not know how successful it was).
If you want a true AOSP experience, it's probably your best bet.
HardOnChairs said:
I have rooted my I337, installed clockworkmod with loki and backed up with CWM to my external SD and moved it to my computer. I am interested in trying vanilla android but I am not entirely sure I want to completely migrate yet, I am still attached to some features like slow motion camera and IR blaster.
Have I sufficiently backed up my device to get it back exactly the way it is if I flash another rom? Does restoring from this backup flash back to touchwiz or do I have to flash again then restore?
How do I make sure the newest ATT update doesn't mess me up if I go back?
Is it possible to switch between the two? The S4 is my first android but I kind of recall seeing people switch between roms. Is that possible in this case?
Click to expand...
Click to collapse
Depends on which one you want to run, which rom is it?
schollianmj said:
as long as you backed everything up in CWM, then later if you decide to restore your backup your phone will be reset to its current state, exactly as it was when you made your backup. that is why in almost every single ROM thread the Dev says to BACKUP. If anything goes wrong you can simply restore the backup and be up and running again with no setup.
so flash away my friend, flash away....
Click to expand...
Click to collapse
Ok, so just to be perfectly clear, if I flash to a different rom then restore from my backup it will restore the original rom too?
TheAxman said:
Depends on which one you want to run, which rom is it?
Click to expand...
Click to collapse
Vanilla android 4.2.2 or 4.3 and the TouchWiz that is currently installed.
Your using custom recovery..not much chance of an ota having any type of impact on on your device.
Sent from my SAMSUNG-SGH-I337m using xda premium

Strange case of unknown baseband and IMEI

Hi everybody, i've got a strange problem on my n4. i was on cyanogenmod, then i decided to try the purity rom, so i flashed it and when the boot completed (very long boot time) there was no signal and the IMEI code and the baseband number were "unknown". the strange part is that with the stock rom and with the cyanogen 10.2 the phone works fine, but the problem was there with every other rom i tried. imho it's very strange.
i searched on google and on xda and i've found some threads with a few fixes. i tried them all but with no luck.
the problem it's not huge, i'll only use the cm from now on but, however, it bothers me.
thank you for reading.
Manually flash a baseband to it.
upgrade your recovery. old versions did not handle selinux properly. your radio didn't get touched. just a permissions issue
When on a rom that shows baseband and imei, try backing up efs info using a terminal emulator and then restoring on any rom that loses that info. It is probably a good idea to have a backup of this anyways, since you are facing this issue. If you lose this info for good, you will never get it back and your phone will never connect to cellular phone service again, just data.
http://forum.xda-developers.com/showthread.php?p=43474084
Sent from my Nexus 4 using Tapatalk
eksasol said:
Manually flash a baseband to it.
Click to expand...
Click to collapse
I tried, no result. In addition, if i boot into bootloader the baseband number is shown correctly.
ziddey said:
upgrade your recovery. old versions did not handle selinux properly. your radio didn't get touched. just a permissions issue
Click to expand...
Click to collapse
i have the latest clockworkmod, and i've also tried the latest TWRP. nothing changes.
fernandezhjr said:
When on a rom that shows baseband and imei, try backing up efs info using a terminal emulator and then restoring on any rom that loses that info. It is probably a good idea to have a backup of this anyways, since you are facing this issue. If you lose this info for good, you will never get it back and your phone will never connect to cellular phone service again, just data.
http://forum.xda-developers.com/showthread.php?p=43474084
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
I'm trying this solution right now, i'll post the results later. thanks
UPDATE: no luck. backing up and restoring those two img files (baseband and imei) didn't work. i really can't understand what's the problem...

TWRP problems

I haven't installed TWRP or cwm as of yet. I am rooted. It seems like I am seeing a lot of people having various problems and not being able to reboot. Does this seem to be coming from user errors or are there some issues when installing recovery software on the G2?
I'm not real interested in installing a custom rom but like having a full backup in case of problems.
1 last question. I bought one of the meenova devices so I could use my 64gb scard. Am I correct that cwm is the way to go if I want to,save my backups through USB?
Thx
I'm wondering same thing..
I really need to do EFS backup, but after reading problems with TWRP, I really don't want to go there..
I'm on CWM now, and have all my backups that way
Luckily I haven't lost my EFS data, althoug I've flashed like five different ROMs.
Now I really really want this thing backed up.
Also have same concern with OP. Have read many posts that they semi brick and LG Flash tool gives error when returning to stock. I'm kinda nervous because even flashing stock sometimes they get error?

LG G2 Intl. Baseband unkown.

Hi there.
I have a big problem with my G2. When I changed ROM LG-Flex CM My phone is stuck on the bootlogo and started up again. After installing the LG-Flex does not recognize the internal memory, IMEI and baseband.
Please help me.
dunda92 said:
Hi there.
I have a big problem with my G2. When I changed ROM LG-Flex CM My phone is stuck on the bootlogo and started up again. After installing the LG-Flex does not recognize the internal memory, IMEI and baseband.
Please help me.
Click to expand...
Click to collapse
Flashing back to stock will fix those issues.
Flashing "stock" europe open D802 does not repair that, still baseband unknown, now I'm downloading and try to flashing my real stock rom, via LG Mobile Support Tool.
If that not help, I don't have more ideas...
unfortunately, after restore real stock firmware, baseband is still unknown.
Please, help me repair my phone. I can't unlock developer options, when i tap on firmware version, my phone is freeze and restart.
Now I root G2, and flash TWRP, but flash new modem, nothing change.
I think at this point you either need to restore a efs backup (if you have one). Or use LG's pc software and try an 'emergency' repair/recovery. But for that you'll need to at least know your IME number. As the software asks for it.
No ROM's contain efs data. As it's unique to each phone.
Sent from my LG-d801 using XDA Premium 4 mobile app
Yeah i think nomad is right, you somehow have completely lost your EFS partition...i had the sam isuue as you and flashing to stock fixed it, but i probably still had my EFS. Did you make a back up of the stock rom at any point? Because if you restore back to that it should restore the EFS and fix your problems.
Unfortunately normal backups don't backup the efs partition(s). So they would have had to have done a specific backup just for that using a 3rd party backup script in recovery.
But using the lg software and knowing your imei you might be able to recover it. Well recover is the wrong term. What the LG software will do. Is recreate that partition using your imei.
Sent from my LG-d801 using XDA Premium 4 mobile app
Had the same issue with the same Rom. I tried a bunch of things for a few days but couldn't find a way to fix mine. I got a replacement.
I did this with my new G2 and only flashing Roms for my phone now.
EFS Partition Backup and More [All G2 Variants]
http://forum.xda-developers.com/showthread.php?t=2451390
sweets55 said:
Had the same issue with the same Rom. I tried a bunch of things for a few days but couldn't find a way to fix mine. I got a replacement.
I did this with my new G2 and only flashing Roms for my phone now.
EFS Partition Backup and More [All G2 Variants]
http://forum.xda-developers.com/showthread.php?t=2451390
Click to expand...
Click to collapse
Where you able to Unroot it before returning it for warranty? Thanks
Sent from my LG-D802 using Tapatalk
mrm43 said:
Where you able to Unroot it before returning it for warranty? Thanks
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
I flashed back to stock but think I was still rooted. I talked to a few long term T-Mobile customers and they said it doesn't matter. I just took it into the store and played dumb. hehe
dunda92 said:
Hi there.
I have a big problem with my G2. When I changed ROM LG-Flex CM My phone is stuck on the bootlogo and started up again. After installing the LG-Flex does not recognize the internal memory, IMEI and baseband.
Please help me.
Click to expand...
Click to collapse
Did you manage to get a solution as am to stuck with same issue, tried restoring to stock , it boots the phone and after 1 min stuck and gets restarted not able to root .twrp..etc..
IMEI and baseband still shows blank
But i have a backup of twrp full stock Root Rom which i had copied it in my PC which has EFS too, will that help , if yes how do i restore it..
Kindly help if you find any suitable solution
sojanjoy said:
Did you manage to get a solution as am to stuck with same issue, tried restoring to stock , it boots the phone and after 1 min stuck and gets restarted not able to root .twrp..etc..
IMEI and baseband still shows blank
But i have a backup of twrp full stock Root Rom which i had copied it in my PC which has EFS too, will that help , if yes how do i restore it..
Kindly help if you find any suitable solution
Click to expand...
Click to collapse
I am hiaving the same problem... Flashing my original KDZ two times and still baseband unknown and IMEI Null

[Q] Cant get Vanir 4.4.2 working S7710 xcover2

When i flashed VanirAOSP 4.4.2 on my xcover 2 everything else worked like it should but sim card stuff.
I lost imei and baseband was unknown.
Cant make a phone call or anything else related to sim card but got those back when restored old backup of stock rom.
I did just like instructions said but everytime when i flash vanir i lose those.
Tried efs backup and restore but it didnt help.
If someone knows what im talking about and knows how to fix this skomer would be more than grateful (dead) :fingers-crossed:
Same problem here. Flashing stock rom will fix that.
Are you using the correct version of CWM that the developers suggested on their thread? It's most likely that or you have a mismatched baseband. You should be able to use Odin to install the latest one for your region to bring back your service. This is why it's often suggested to back up your EFS before installing custom rom. Seems to happen a more on Samsung devices with non TouchWiz based roms. Luckily, this seems like an easy fix, but there's a chance of losing your EFS partition with stuff like this, and that's a whole new world of trouble.
es0tericcha0s said:
Are you using the correct version of CWM that the developers suggested on their thread? It's most likely that or you have a mismatched baseband. You should be able to use Odin to install the latest one for your region to bring back your service. This is why it's often suggested to back up your EFS before installing custom rom. Seems to happen a more on Samsung devices with non TouchWiz based roms. Luckily, this seems like an easy fix, but there's a chance of losing your EFS partition with stuff like this, and that's a whole new world of trouble.
Click to expand...
Click to collapse
i did use correct cwm and tested others but wont get efs things working =( thanks for reply =)
Did you reflash the modem yet?
Sent from my Nexus 5 using XDA Premium 4 mobile app
Cant do it right now because i shipped it to warranty repair =) the chargers hatch didnt stay closed =)
the same probl
BallStone said:
Cant do it right now because i shipped it to warranty repair =) the chargers hatch didnt stay closed =)
Click to expand...
Click to collapse
I got the same problem except I flashed the cm10.1/10.2/11.0... lost sim, IMEI, baseband (I´m a noob btw).
Went back to stock (rooted with cwm), works fine though. But sure as hell would like to cm 11.0 to run with a working phone,
it was really smoothe...
pattwall said:
I got the same problem except I flashed the cm10.1/10.2/11.0... lost sim, IMEI, baseband (I´m a noob btw).
Went back to stock (rooted with cwm), works fine though. But sure as hell would like to cm 11.0 to run with a working phone,
it was really smoothe...
Click to expand...
Click to collapse
its nice to know that im not the only noob in here, keeping fingers crossed and dreaming about the day when we get our skomers working perfectly.
I'm stricken as well. I tried both Vanir and CM and had no signal on either of them.
I'm using CWM 6.0.4.6, wiped all filesystems I dared (/system, /data, all the caches I found). I haven't flashed modem fw though (how, is there any link for firmware?).
After the flash, I can see IMEI in phone information, but I don't have any mobile signal. Flashing back to stock firmware resolves the signal issue (well, last time I just used CWM's backup functionality and it worked like a charm).
same here
has anybody a solution for it? my imei is empty after flashing something. i tried to backup my efs partition but dont know if its right. Just create a tar file of my efs partition.
Hello there.
It's the same for me. Every time, I install vanir, my device looses it's IMEI. I install it with the modified CWM by the Dev without any errors. Everything seems to be OK except the IMEI. If I go back to XXAND2 by Backup, everything is OK again. I also tried an efs backup, but in vanir I have problems to get it back, "error, empty archive" it says. I'm really confused about that.
Greets
5n00p3r
Got my phone back from repair couple days ago and its brand new xcover2 but still the same when flashing =( ... i tried efs backup and restore but said it cant be found or something like that. And im 100% sure i had the backup on my sd and its still there but it is what it is. Im going to wait for someone smarter than me to figure it out and keep the stock**** for now.
Holy cow! I did it.
I got everything working exept baseband it says now xxxx but that doesnt bother me cause i can now make phone calls and messages.
Dont know about how right my method was but it worked, i copied efs folder and modemfs folder from stock rom to my ext sdcard and flashed vanir then with root browser i deleted everything from those folders and replaced with copies i made... sounds weird but im happy :good:
Hm, seems to be a solution. This is my biggest problem, too. What about updating Vanir to a newer built, when you have vanir already installed? Have you tried it too? Do you have to copy the efs again?
5n00p3r said:
Hm, seems to be a solution. This is my biggest problem, too. What about updating Vanir to a newer built, when you have vanir already installed? Have you tried it too? Do you have to copy the efs again?
Click to expand...
Click to collapse
Yes i did update it and there was no need to copy/paste again. But im confused about baseband : XXXX, could that do harm later on?
Its good to keep the copies on extsd cause if messups happen u dont have to fight with them backup things which didnt work for me.
Sounds simple. I'll try it next time. But do I have to clean the Dalvik cache too before installing vanir or should I just do the wipe?
5n00p3r said:
Sounds simple. I'll try it next time. But do I have to clean the Dalvik cache too before installing vanir or should I just do the wipe?
Click to expand...
Click to collapse
i wiped =)
It's like someone doesn't want me to use this ROM ? I tried your hint and copied efs and modemfs to SD, installed Vanir and GAPPS, copied efs and modemfs back with Total Commander, restarted and all was the same as before - no IMEI.
5n00p3r said:
It's like someone doesn't want me to use this ROM ? I tried your hint and copied efs and modemfs to SD, installed Vanir and GAPPS, copied efs and modemfs back with Total Commander, restarted and all was the same as before - no IMEI.
Click to expand...
Click to collapse
did u delete everything from efs and modemfs before putting new ones in?
No, I just overwrote it. Don't tell me that's it. ? Dammit, I didn't even think about it. I'll try this next time.
Gesendet von meinem GT-S7710

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