My Samsung s4 us Cellular IMEI Number and Baseband Unknown
what can i do???
:crying:
What did you do?
Did you try factory reset? I suppose you have no efs backup...
Sent from my GT-I9505 using xda app-developers app
If you've not got an EFS backup available... try restoring back to stock firmware. People have reported that after restoring stock, their IMEI and the sorts have returned.
If you DO have an EFS backup, restore it and all should be ok
Related
I think my phone imei lost.I have imei backup but how can I restore?
i forgot backup my EFS Partition,then my phone lose baseband and showing unkown, who can backup a att g2 d800 EFS Partition for me ? thank you !
Now one. EFS is unique to your phone.
Sent from my LG-D802 using Tapatalk
Hello,
I want to say that my IMEI is unkown but I have already signal from carrier. It means that i did not lose signal.
I backed up the efs via philz recovery. see picture below. My efs folder is not empty. I already restored via philz recovery but it didnt fix my problem
Bordo_Bereli51 said:
Hello,
I want to say that my IMEI is unkown but I have already signal from carrier. It means that i did not lose signal.
I backed up the efs via philz recovery. see picture below. My efs folder is not empty. I already restored via philz recovery but it didnt fix my problem
Click to expand...
Click to collapse
Wich ROM are you using? If the lost IMEI appeared directly after a ROM flash, dirty flash it again. This should work.
Had the same problem when flashing a rom but If I left the device running for 5 mins then checked the imei was back. It did this at every reboot until I flashed a different rom
Sent from my GT-I9505 using XDA Premium 4 mobile app
I flashed stock firmware with pit and without pit, the IMEI remains unknown, even the efs folder is mounted and is not empty
i think i found the problem CSC: XXX i heard that csc had to do something with efs.
changed csc to ato (firmware is from ato =austria unbranded) imei is now there , thank you guys for the response!
Guys i need a help here i flashed official rom for s4 i9500 , and i did efs backup ,,
after finishing flashing i cant get any signal and null/null IMEI .. now how to restore efs folder ??
anyone can help
My guess is your were on lollipop and flashed kitkat.
Flash a lollipop modem and your imei is back.
New Life said:
Guys i need a help here i flashed official rom for s4 i9500 , and i did efs backup ,,
after finishing flashing i cant get any signal and null/null IMEI .. now how to restore efs folder ??
anyone can help
Click to expand...
Click to collapse
If you did a backup then you should be able to restore that backup using the same method. Eg: If you used an app, that app should be able to restore the efs folder.
The problem with the EFS folder on the latest versions of Android is that it doesn't contain the IMEI, last time I checked. The IMEI is now stored in hidden partitions, which is why when it comes to backing up this important stuff I recommend Wanam's EFS Backup tool from the Play Store. Not only does it back up the EFS folder, but also backs up those hidden partitions as well as the modem..
In this instance however, Lennyz1988 I believe has the right answer.
I updated my SM-G900A to the latest Marshmallow 6.0.1 using ODIN. Afterwards I can't make calls and I have no bars on the top. I may have chosen the wrong settings in ODIN 3.12.3. If my EFS data has been lost can I restore from the EFS partition? I don't think I chose the EFS clear option. I unable to root on this phone right? I am new to smartphones so I'm not sure what to do. Are there methods of restoring the EFS data from the EFS partition if it is still there without rooting the phone? I do have firmware for Lollipop 5.1.1 if that helps.
you cannot recover efs without a backup previous made
remosam said:
you cannot recover efs without a backup previous made
Click to expand...
Click to collapse
So if I used the default settings on ODIN and upgraded to Marshmallow the EFS partition would not be there anymore? What if the EFS data gets corrupted. Is there is no way to restore? I'm just assuming it is the EFS data and not something else. I read the EFS partition cannot be accessed without rooting the phone?