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.
Related
Hi XDA i have flashed recovery-clockwork-5.5.0.4-ariesve.tar and then new beta ICS rom, after reboot no phone signal and no show IMEI but WIFI work.. please help me. thz
I'm not a samsung user but try to push the phone.apk and dialer.apk and contacts.apk from the orginal rom maybe it'll help
i have restore original firmware and nothing, no signal. i'm not sure but what about EFS Data restore without backup ?
Got the same problem here. Tried to install different modems but it didn't help. I'm out of ideas at the moment.
how to install different modems ? install another rom ?
restore efs backup if imei is lost
if you dont even know how to flash another modem maybe you shouldnt have tampered with ur phone to begin with
and if u do not have efs backup maybe you shouldnt have messed with ur phone since its first thing you do after you have rooted your phone
android not display the base band version and imei and i not have a backup... what i can do. pls help me
http://forum.xda-developers.com/showthread.php?t=832791
here is something about losing efs data.
another problem of device is the Random Reboot or Auto Shutdown...have any idea for this ??
Magic DEVICE Imei and Baseband restored but sim card DIE
You have to reflash a GB-Rom,i.e. JVU. Then everything will be ok. And after that flash a ICS-Rom which not makes disappear the IMEI and then, without wiping you may flash this special ICS-Rom which caused that issue. Now everything should be ok. That was the experience I have made.
Playing around with ROMs poses a risk and obviously I screwed up this time. So I restored from a full nandroid backup that I did yesterday, only to find that I have no IMEI and network connectivity is screwed up.
I also have an older full nandroid backup from January this year where I know that network works fine.
I restored the efs partition by reformatting it and populating it with the data from the old backup.
Yet, nothing has changed.
I can get some basic network connectivity back by using Pimp my ROM's option to access hidden menu by turning of the radio, changing the network type and turining on the radio again. But it's only Edge connectivity and the IMEI ist still 0 and adb logcat shows a lot off errors due to an unrecognized device.
Any ideas?
Did you try flash the latest modem?
In s3 there was once a major update of modem/efs. New efs with older modem will screw it up.
I don't know if it's same case in s4 as I have only moved into for very short time.
I lost efs together with imei last week when I tried to flash a different modem. Running out of options I sent the phone to a repairer.
Today, after one week, I picked it up from them and they somehow got the imei back and the phone is working while I was still at their office.
Now I'm home and tried to connect it to my home's wifi, as soon as it connects, the phone reboots. It's very stable on mobile data though.
I cleared data, flashed different roms, but wifi connection always reboots it.
Then I looked in the efs folder and surprise, it's empty!!! I don't know whether that's the cause of the wifi problem, but isn't it odd that the phone runs ok otherwise without efs?
Anybody has any idea of what's happening to my phone? Can my wifi problem be fixed?
I do actually have an efs backup that I've done back in January. But I just can't remember what tool I used to make that file. The file name is "efs.img". Any suggestion at all?
ioneng said:
I do actually have an efs backup that I've done back in January. But I just can't remember what tool I used to make that file. The file name is "efs.img". Any suggestion at all?
Click to expand...
Click to collapse
Use IMEI Tool N9005 Free 1.1
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???
Click to expand...
Click to collapse
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
Hi,
I have Axon 7 mini B2017G and I have lost network signal.
This initially happened after updating firmware to EU (to get 7.1.1) I noticed sound not working. So I tried to root phone for TWRP and Lineage but that resulted in IMEI 0 for both IMEI's.
I have since restored both original IMEI but still cannot get signal for more than 30seconds after a full factory reset. Regardless of firmware, rooted or not rooted etc etc.
Seems I have lost important NV data while messing with Modems and restoring IMEI etc.
Can someone please do a full EDL backup with "Axon7_Mini_EDL_Tool" of All partitions (including modemst1, modemst2 fsg) so I can restore baseband configuration, modem partitions etc???
If that isn't an option for someone with the same phone as me, then can you please backup NV items as QCN file so I can try repair my network issue??
The idea i have is to restore ALL partitions from exact same model/version and then restore my original IMEI's in the hopes that I can once again register GSM network and use the phone.
Thank you
Sorted.
sixcherries said:
Hi,
I have Axon 7 mini B2017G and I have lost network signal.
This initially happened after updating firmware to EU (to get 7.1.1) I noticed sound not working. So I tried to root phone for TWRP and Lineage but that resulted in IMEI 0 for both IMEI's.
I have since restored both original IMEI but still cannot get signal for more than 30seconds after a full factory reset. Regardless of firmware, rooted or not rooted etc etc.
Seems I have lost important NV data while messing with Modems and restoring IMEI etc.
Can someone please do a full EDL backup with "Axon7_Mini_EDL_Tool" of All partitions (including modemst1, modemst2 fsg) so I can restore baseband configuration, modem partitions etc???
If that isn't an option for someone with the same phone as me, then can you please backup NV items as QCN file so I can try repair my network issue??
The idea i have is to restore ALL partitions from exact same model/version and then restore my original IMEI's in the hopes that I can once again register GSM network and use the phone.
Thank you
Click to expand...
Click to collapse
same happened to me after messing with network setting, SIM 1 now stuck on LTE mode only which has limited coverage in some areas. SIM 2 is working fine.
I read somewhere that if you downgrade to Marshmallow, it might solve your problem.
I don't know what to do :crying::crying::crying: