[Q] Unable to mount /efs? Please help!
So the story goes like this. I flashed cm10.2 on my galaxy s4 i9505. Days later, there was an update. I was hoping that the new update might have some battery improvements so I went ahead and updated it. After updating, I realised there was a bug with the back button, so I tried to restore my old cm10.2. But there was a 'unable to mount system, unable to mount cache and unable to mount efs' error. I fixed the first 2 by wiping system and cache, but I could not fix efs. I had to flash a new cm10.2 because I couldn't restore it. Now my efs file is empty but I can call and sms. The only issue is that the mobile carriers appear as numbers(e.g. at&t appears as '52575'), but it doesn't bother me as I've remembered which number is my carrier. I have a backed up stock rom but again, I can't restore it because of the unable to mount /efs error... Any similar experiences/ solutions?
THANKS A LOT!