I am on Android Version 4.2.2 , [my baseband says unknown, build MDC, I tried for the first time to flash a custom rom . It was the negalite rom. I got stuck on bootloader screen , then flashed back to my nandroid backup. But know my phone wont read my sim card. i have no clue what to do know, please help !
I fixed it
Altiealt said:
I am on Android Version 4.2.2 , [my baseband says unknown, build MDC, I tried for the first time to flash a custom rom . It was the negalite rom. I got stuck on bootloader screen , then flashed back to my nandroid backup. But know my phone wont read my sim card. i have no clue what to do know, please help !
Click to expand...
Click to collapse
I was having trouble getting back into TWRP recovery. It just kept freezing on the Team Win blue screen. It stayed that way a few minutes, then held in the power button, and it successfully got back into TWRP. Flashed my old backup again and all issue's were fixed. May have just been dumb luck, but maybe it will help someone.
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I am one of the unlucky people who's radio was damaged by the 4.3 update meaning my IMEI=0 and baseband is unknown....since I am in Pakistan and got the phone from here i cant RMA the device...so I have an ipod touch device in which every function works except the phone function. I have got a seperate phone now but want to keep the radio less nexus 4 for other functions like browsing and games.
Now in Nexus 4 devices with the IMEI 0 problem only Android 4.2.2 boots while both Android 4.3 and 4.4 get stuck at the boot screen logo.
so my question is..is there some way I can get any kitkat rom to boot even if its without IMEI? Would any one be so kind enough to make a modified kitkat ROM that boots on Nexus 4s with IMEI=0 and baseband unknown problem?
and my second question is why is it that on Nexus 4s broken by the 4.3 update that have IMEI=0 and baseband unknown that ONLY 4.2.1/4.2.2 boots without phone ability but 4.3 and 4.4 do not boot at all remaining stuck at logo? Any possible explaination? Whats in the 4.2x ROMS that make it boot in such affected devices and whats in 4.3/4,4 that stops them from booting in IMEI=0 Nexus 4s?
I just looking to boot a kitkat ROM even if IMEI still remains zero.
I am a noob so go easy on me and I would really appreciate any help,suggestions or ANYTHING at all. Thanks.
Have you tried to simply reflashing the baseband or flashing the full factory image which have the baseband included? The instructions are in my signature.
eksasol said:
Have you tried to simply reflashing the baseband or flashing the full factory image which have the baseband included? The instructions are in my signature.
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Click to collapse
I have already done all the basic troubleshooting steps. i have flashed full factory images via fast boot many times only 4.2.2 boot with imei=O while 4.3 n 4.4 do not boot at all thats why m asking why only 4.2x boots n others do not n i will appreciate if someone can get kitkat to boot on my phone even if IMEI still remained zero.
I have also flashed again and again all the basebands(old and new) problem presists...baseband only shows in the bootloader mode while it remains unknown within android OS. All the threads I have seen of my problem remain unconcluded so I have little hope of ever restoring IMEI but I would like if atleast Kitkat boots somehow
liquidmetal88 said:
I have already done all the basic troubleshooting steps. i have flashed full factory images via fast boot many times only 4.2.2 boot with imei=O while 4.3 n 4.4 do not boot at all thats why m asking why only 4.2x boots n others do not n i will appreciate if someone can get kitkat to boot on my phone even if IMEI still remained zero.
I have also flashed again and again all the basebands(old and new) problem presists...baseband only shows in the bootloader mode while it remains unknown within android OS. All the threads I have seen of my problem remain unconcluded so I have little hope of ever restoring IMEI but I would like if atleast Kitkat boots somehow
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Click to collapse
Sorry, don't know what to tell you, but I think you're not the only one with similar issues. Have you tried with custom roms?
eksasol said:
Sorry, don't know what to tell you, but I think you're not the only one with similar issues. Have you tried with custom roms?
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Click to collapse
As many as I could but the pattern remains the same...all 4.2.2 ones boot without IMEI...while 4.3 and 4.4 custom ROMS simply do not....yes many people have had this exact same issue...many threads here too....one thing is common in these cases the issue started after updating to Android 4.3(guess some lethal bug in it that broke some Nexus 4 phones) but I wonder what stops a 4.3 ROM or a kitkat ROM from booting while facing this bug where as ALL 4.2.1 and 4.2.2 ROMS boot even though basebandvis unknown. I do hope such bugs dont occur in future updates in my country a nexus 4 without phone ability and inability to be updated is valueless and my hard earned cash has literally gone down the drain...may be I will sell it for parts or something.
first thing first.
ensure that you have an unlocked bootloader.
ensure that you have a custom recovery i.e cwm twrp
answer the following question, do you ever tried flashing a custom rom? i.e cm10.2
did you tried flashing baseband?
hassi4042 said:
first thing first.
ensure that you have an unlocked bootloader.
ensure that you have a custom recovery i.e cwm twrp
answer the following question, do you ever tried flashing a custom rom? i.e cm10.2
did you tried flashing baseband?
Click to expand...
Click to collapse
Bootloader is unlocked.....custom recovery is there.....have tried all cyanogen mod versions available for Nexus 4.....result is the same....4.2.2 ROMS(official factory images as well as custom ROMS) boot with IMEI=0 and baseband unknown.....while 4.3,4.4 ROMS are always stuck on boot animation...Having seen many threads on my problem it seems my IMEI problem is unlikely to be fixed( nope flashing different ROMS, clearing caches,flashing different radios via custom recovery or fast boot does not change any thing) Now I am tired of trying to fix the IMEI again and again I just want someone to help me boot any Kit kat ROM even if its without IMEI or just explain to me why Kitkat and 4.3 ROMS dont boot when IMEI= 0 while all 4.2 ROMS boot?
Kindly also explain why baseband version appears unknown within Android OS but is detected while in bootloader mode. Thanks
Exactly same situation here...
Very frustrated, this is not a new bug and new android versions are coming but this remains unsolved.
Nothing? Only 4.2.x is bootable???
PN.ItalyGirl said:
Nothing? Only 4.2.x is bootable???
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Click to collapse
i booted with imei=0 (no radio installed) however it took up to 40 mins on the 1st boot and took up to 15 on other ones.
to wait less, u can install 4.2.2 stock from factory image and let it boot. then u install custom recovery, and reboot back to fastboot mode. on fastboot mode u get a 4.4.2 stock factory image, extract it,extract image-occam-blabla.zip and copy the system image. then u type fastboot format system, fastboot flash system <path to system.img>.
then go to custom recovery and:
if using cwm:
go to advanced -> wipe dalvik cache
if twrp:
Wipe -> advanced wipe -> mark dalvik cache and cache and dismark others
then reboot and wait up to 15mins
Is there any way to restore the IMEI at all? Ive been looking for a long time now. Absolutely no luck.
Sorry to wake up this thread but i don't like to double post.
I have the same situation with my nexus 4, i assume the phone is bricked and stuck in Android 4.2. But i want to take some advantage of this bricked phone and use it for Android Auto in my car (with compatible AA Stereo), as an always on and dedicated to the car.
The problem is that Android 4.2 is compatible with nothing good today, so i want to update at least to lollipop or marshmallow.
Is there any way that i can flash a newer ROM (custom, stock, whatever) that works with an "IMEI unknown" phone? Because 4.2 is the only working ROM, others stuck in boot logo
Here's the story
1. this phone wouldn't boot up after the OTA update, the screen read "firmware upgrade encountered an issue.
please use software repair assistant & try again."
2. used odin 3.09 to reflash pit and the latest nc4 official firmware (I know it can't be rooted, but that's the only choice I have).
3. phone came back alive, worked for t-mobile and verizon sim cards.
Problem:
after a few hours or maybe a day, or maybe a restart, phone won't detect sim card, baseband version shows unkwown, hardware
version is empty, imei, network, MIN, PRL version, ERI version, imeisv, iccid are all "unknown".
What I have done:
phone will be back to normal if I flash the firmware again, I've use odin 3.09 and kies 3 many times.
I also tried flashing different modems, for ex, MI9, MJE, NC2 even NC4. But phone will keep restarting, sometimes the phone is working after
a few restarts. But eventually I will have the same problem again.
I was wondering if someone could point me to the right direction?
nicedog said:
Here's the story
1. this phone wouldn't boot up after the OTA update, the screen read "firmware upgrade encountered an issue.
please use software repair assistant & try again."
2. used odin 3.09 to reflash pit and the latest nc4 official firmware (I know it can't be rooted, but that's the only choice I have).
3. phone came back alive, worked for t-mobile and verizon sim cards.
Problem:
after a few hours or maybe a day, or maybe a restart, phone won't detect sim card, baseband version shows unkwown, hardware
version is empty, imei, network, MIN, PRL version, ERI version, imeisv, iccid are all "unknown".
What I have done:
phone will be back to normal if I flash the firmware again, I've use odin 3.09 and kies 3 many times.
I also tried flashing different modems, for ex, MI9, MJE, NC2 even NC4. But phone will keep restarting, sometimes the phone is working after
a few restarts. But eventually I will have the same problem again.
I was wondering if someone could point me to the right direction?
Click to expand...
Click to collapse
When you flashed the different modems, did you check settings/about the phone to verify that the modem flash " took"? Recommend entering Odin from power off, especially when flashing modems. FWIW, I'm not at all sure this will fix your problem, but it's worth a shot.
cam30era said:
When you flashed the different modems, did you check settings/about the phone to verify that the modem flash " took"? Recommend entering Odin from power off, especially when flashing modems. FWIW, I'm not at all sure this will fix your problem, but it's worth a shot.
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Click to collapse
Yes I did. The baseband version showed MI9 when my phone was still working properly.
nicedog said:
Yes I did. The baseband version showed MI9 when my phone was still working properly.
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Click to collapse
OK. Hopefully someone else will chime in with some suggestions.
one more thing I've done many times so far is, sometimes a full reset will bring it back to normal too.
settings -> backup and reset -> factory data reset.
I don't mind bricking my phone, but maybe someone knows other possible way, say, flashing EFS? I don't even know what that is.
I've been searching for the right solution but I haven't found one yet.
Never ever give up!
I'm the OP and I finally got it working. I simply ran EFS Professional v2.1.73, did a backup and restore of the EFS. That's it!
Did you figure out what efs is?
Sent from my SM-N900V using XDA Premium 4 mobile app
It didn't last long, and using EFS profession for EFS backup/restore never worked again.
I then saw this page the other day,
http://forum.xda-developers.com/showthread.php?t=2610757
So I used odin to flash
pit
official kitkat rom
I also checked these two,
erase nand
erase EFS
the phone booted up fine, I then turned it off and entered recovery mode, did a data and cache wipe, then booted up the phone again, that brought back my imei, my sim card worked again.
Unfortunately I'll lose it again once I flash a custom rom, or perhaps even a reboot.
I'm still searching for a permanent solution. But at least now I can use my sim card with a stock rom
Rom based on which region?
nicedog said:
It didn't last long, and using EFS profession for EFS backup/restore never worked again.
I then saw this page the other day,
http://forum.xda-developers.com/showthread.php?t=2610757
So I used odin to flash
pit
official kitkat rom
I also checked these two,
erase nand
erase EFS
the phone booted up fine, I then turned it off and entered recovery mode, did a data and cache wipe, then booted up the phone again, that brought back my imei, my sim card worked again.
Unfortunately I'll lose it again once I flash a custom rom, or perhaps even a reboot.
I'm still searching for a permanent solution. But at least now I can use my sim card with a stock rom
Click to expand...
Click to collapse
Can you please tell the stock rom based on which CSC ? or country ?
I'm having the same issue. Lost baseband and imei, but never got it recovered. even with stock.
I use this one,
ALL_VZW_N900VVRUCNC4_N900VVZWCNC4_1487472_REV03_user_low_ship_MULTI_CERT.tar.md5
http://www.trueandroid.com/2014/05/n900vvrucnc4-android-442-kitkat.html
Same boat brother, this is what I've posted. So far I'm a week in this situation, battery pull brings it back, any mod like Xposed with module where you have to reboot looses the baseband, IMEI etc. I have backup of the EFS and restored it multiple time with no joy.
Need some advice guys for Verizon my Note 3, I'm currently stock NC4 ready to. flash this bad boy ROM, after root access with TowelRoot, installation of BusyBox and Supersu no SafeTrap yet. Once I reboot in this state, I have the Baseband unknown under Settings-About Phone status all unknown info on IME etc etc. Off course I loose 4G signal all together. I may reboot again and it comes back. I know about EFS partition corruption and have multiple backup of My note 3 EFs partition. Even with restore it would still happen. I have exhausted all my knowledge learned throughout the years from you guys. But, I'm asking some help again. I am very familiar with all the terms about flashing/rooting so please feel free to throw some genius on how I can fix this thing.
Sent from my SM-N900V using Tapatalk
I was trying to install CM12.1. So before I start. I formatted my phone systems and data and all. But suddenly after my phone boot up I can't get any signal and my IMEI is unknown and baseband too. Please help me out. This is my second thread about this on this forum. In the first post no one seems to be helping. Now am running on GearCM12
Reinstall the stock ROM. If that doesn't correct the issue the S4 will need to be serviced.
If this is the second thread you've posted on this topic, let the mods know so they can lock the earlier thread.
I had an S1 and wiped the IMEI a few times. Without a backup, the only solution was to restoring to the latest stock ROM that could be flashed via Odin, so that was GB 2.3.
I'm sure, if you do this with 4.2.2, you'll be fine.
EDIT: FULL STORY BELOW. SKIP TO SECOND REPLY FOR UPDATE!
900A, AT&T, WAS 4.4.4. I rooted my phone with towelroot by downgrading via ODIN then reflashing 4.4.4. I've had the phone for a year and wanted to experiment with some custom roms--specifically Twi5ted Lollipop. The version I found last night was V3. Anyways I followed the instructions of installing safestrap then attempting to create a partition to host the mod. Every time I tried to boot the partition I would wait 12 minutes with nothing but a black screen (I presume a bootloop.) After reading some posts here I found it requires a clean flash--not a dirty flash. So I used safestrap to backup, then I wiped it and installed the mod. Nothing--still black screen. I then attempted to restore the backup I saved--fails every time.
At this point being the noob I am, I started to get very concerned. I went into advanced wipe and for some reason selected 'system' and wiped it. After a reboot, it shows the Samsung logo, goes blank, vibrates then goes back to the Samsung logo. I went into the standard bootloader and attempted to restore to factory settings but there is nothing to restore of course cause I wiped everything.
I'm currently at work bored as heck cause my phone is wiped. I can still go into download mode thankfully. Should I have no problems flashing stock via ODIN when I get home on my lunch break? Which stock firmware should I flash for this phone?
Thanks!
Unfortunately my lunch break brought me no good news. I downloaded stock found here: http://forum.xda-developers.com/showthread.php?t=2714455
After I flashed all the files (Except BL) when it boots, it get's to the Samsung logo--freezes halfway through then goes blank with the blue LED light on. I waited 10 minutes just to see what it does with no luck.
Another thing I found was weird-why when I boot does it still say 'Custom' when I flashed the stock firmware?
I really hope I don't have to drop $650 on a new phone Any help would be incredibly appreciated. Thanks guys!
DETAILED INFO: KOT49H. 6900AUCU1ANCE
MODEL: SM-6900A UD
FCC ID : A3LSMG900A
GALAXY S5 AT&T
why didn't you also flash the bootloader?
mike-y said:
why didn't you also flash the bootloader?
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Click to collapse
AT&T bootloader is locked right? Regardless I tried flashing the bootloader as a last resort and ODIN failed. Figured it just confirmed what everyone else said that it's locked.
Is there a specific way I need to flash the files? Like one at a time?
Do I need to restore factory settings/delete cache THEN flash each? or vice versa?
Am I basically screwed since I have AT&T?
:crying::crying::crying::crying:
FIXED!
After flashing 4.4.2 several times and trying different things, I came across this thread which finally brought my phone back to life. Thanks XDA!!!
http://forum.xda-developers.com/att...w-to-unbrick-flash-to-stocknce-g900a-t3077652
Hi Guys, hopefully someone will be kind enough to help me out here!
So I flashed my S7 Edge with Superman Rom a week or so ago and loved the Rom itself, however all I have got since is no signal, no imei, and won't read my sim. I've tried everything I can 're flashing Rom, trying to replace efs file (no backup as it got deleted ☹) and tbh I really haven't a clue what else to try.
I did try to refresh a stock nougat Rom through Odin but this now fails due to boot.img ?
So bloody lost.
If anyone has any ideas what to try I would be really greatful.
Cheers
Matt
Mattid11 said:
Hi Guys, hopefully someone will be kind enough to help me out here!
So I flashed my S7 Edge with Superman Rom a week or so ago and loved the Rom itself, however all I have got since is no signal, no imei, and won't read my sim. I've tried everything I can 're flashing Rom, trying to replace efs file (no backup as it got deleted [emoji852]) and tbh I really haven't a clue what else to try.
I did try to refresh a stock nougat Rom through Odin but this now fails due to boot.img ?
So bloody lost.
If anyone has any ideas what to try I would be really greatful.
Cheers
Matt
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Click to collapse
Flash newest Oreo stock frimware via odin and u should get your sim card working.
Most probably u already had oreo installed once before so u cant downgrade back to nougat anymore ,only use oreo
Scorpionea said:
Flash newest Oreo stock frimware via odin and u should get your sim card working.
Most probably u already had oreo installed once before so u cant downgrade back to nougat anymore ,only use oreo
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Click to collapse
Thank you mate! ...seems that the firmware I was flashing was not the newest version so couldn't update the boot to flash. Downloaded most recent Oreo and it flashed through dirty. Had to then flash TWRP and new root before installing would complete past the dreaded 'No Command' with yellow triangle screen! (Probably my fault for dirty flash - but just incase yours doesn't fully wipe if you get same problem as me). Rebooted and Oreo installed no probs and both my signal and IMEI have returned!
Custom ROM flashed and all still working no probs.
Much appreciated for the help!
Mattid11 said:
Thank you mate! ...seems that the firmware I was flashing was not the newest version so couldn't update the boot to flash. Downloaded most recent Oreo and it flashed through dirty. Had to then flash TWRP and new root before installing would complete past the dreaded 'No Command' with yellow triangle screen! (Probably my fault for dirty flash - but just incase yours doesn't fully wipe if you get same problem as me). Rebooted and Oreo installed no probs and both my signal and IMEI have returned!
Custom ROM flashed and all still working no probs.
Much appreciated for the help!
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Good