Scenario: On stock unrooted everything is working as it should on the Verizon Galaxy Note 3. The I would root it with TowelRoot, install BusyBox and SafeStrap and on the next reboot I would get Baseband "unknown", IMEI "unknown" etc under phone status. A few restart after that Cell signal will come back and one more reboot 4G signal is back. All that until the next reboot.
I have backup and restore the EFS partition using various EFS tool to no availability.
What can be causing this?
Thanks guys.
I;m having a similar issue. Restored from a backup, messed everything up. I was able to reflash stock firmware in Odin, re-partition, everything, got service, can make/receive calls and texts, no data tho. Greyed out 3g symbol.
hi.
i had updated my note 3 n900 OTA everything legit from kitkat to the lollipop update. it updated automatically without a hitch. one day while having the phone in my pocket i noticed it had shut it self down when i powered it back on i could not make calls anymore found out that now i have a null imei and unknown baseband. can someone kindly help me please. send me link of whatever if i need to flash anything roms...ect... please assist!
Did you ever make a nandroid backup using TWRP? You can restore the modem and EFS from it. From the sound of it, the data in one or both of those folders is either corrupted or erased.
As above or restore your backed up EFS folder .
Worth trying a factory reset first .
Faqs and guides here .
http://forum.xda-developers.com/galaxy-note-3/general
everytime i try a new Custom rom I lose imei and hence i cant use any network on my phone... ive tried all methods of restoring lost imei but to no avail... ive tried backing up nvram data and restoring it in the new rom but still doesnt work. any hel please
Backup imei through tool hero or mobile uncle APK....
Nd after flashing ROM install app Nd restore imei
as whatttttttt!!!!!!!
hi all
my partners s7 edge was running very slow so i flashed the stock firmware yesterday and now its lost IMEI information. i have followed guide on here and tried all 3 steps (reflashing rom etc) however whenever i try backing up EMS it fails saying there is no EMS file, she cannot make any calls as its not registering on the network. please can someone help with this???
rumel2011 said:
hi all
my partners s7 edge was running very slow so i flashed the stock firmware yesterday and now its lost IMEI information. i have followed guide on here and tried all 3 steps (reflashing rom etc) however whenever i try backing up EMS it fails saying there is no EMS file, she cannot make any calls as its not registering on the network. please can someone help with this???
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Hey, I have the same problem, I guess that there's not solution yet.
Try here:
https://forum.xda-developers.com/showthread.php?t=3379516
Sent from my SM-G935F using Tapatalk
Do you a have a efs.img backup ? Or any kind of IMEI/EFS/RADIO backup ?
I had the same problem I flashed the stock ROM and somehow I lost my IMEI info, I tried everything and I was even thinking about buying a z3x box but then I decided to do a very risky move , I completely deleted all the EFS related files/info and reflashed again but now I was not able to boot because I always sent me to recovery mode saying that :
"E:Failed To Mount /EFS (invalid argument )"
Then all I did was installing TWRP and rooted my SM-G935F and then I placed my efs.img backup on my internal SD CARD and went on recovery launched the terminal and wrote this :
dd if=/sdcard/efs.img of=/dev/block/platform/155a0000.ufs/by-name/EFS
Then I wrote reboot and it finally my phone was booting and I recovered my IMEI and was able to use my phone normally.
This only works if you have a backup of your EFS, and even if you do is risky , but I did it because I lost all hope and was accepting the fact that my phone would just become a useless wifi only device .
So there is not a fix yet for this problem ?
I have a problem on my s7edge instead. If i have valid imei i'am almost always in emergency calls, and when the signal comes back does not go into mobile data connection. With the wi fi no problem.Can someone help me i'am going crazy.!
IMEI, Network Signal and Baseband is misssing
Re: IMEI, Network Signal and Baseband is misssing
IMEI, Network Signal and Baseband is misssing
Hi
I am ready to donate if any expert can help me to restore IMEI.
I am using SM-N9500 samsung note 8 model - hongkong version, i frequently change the roms.. when last time i tried to install a custom rom i lost IMEI. i am getting error like IMEI-unknown, baseband- unknown, no network and sim cards not working..
i tried installing stock rom, custom roms, it was installing successfully but only baseband, signal and IMEI are not working. i didnt even back up my EFS folder. So, kindly help me to get back my IMEI.
I have installed stock rom, still no IMEI. now i rooted my mobile and taken EFS backup. is it enough? if yes, pls suggest me the next steps. I also tried installing combination firmware, though is not working, installation was successful and also i am able to see the factory binary logo, after which it will switch off automatically and boot loops. everytime it will open factory binary and immediately it will switch off automatically..
Build number - R16NW.N9500ZHS4CRJ1
Hello guys,
I have problem with my S7 edge.. I played with few custom ROMS bud i accidentaly wiped all data in phone an it also deleted my EFS backup folder
Now my IMEI is 00000000 and I also dont have any SN.. So I cant use my phone for calls, SMS, data..
Can someone help me resolve this problem? I am on stock Android 7.0 now.. Or can some of you send me an EFS backup file for restoring?
Recently my phone was in servis for shell change so I dont have IMEI on the back, but i got a paper from servis with IMEI and SN on it.
I need help please... Thanks for any reply.