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[Q] Null IMEI and EFS backup

OP pins2u

13th June 2014, 12:27 AM   |  #1  
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All of sudden today, the voice calling service on my phone stopped working.
It gives the BSOD whenever I try to make a phone call...

I was on CM11, then I tried to revert back to stock, but still the same.
Strange thing is that the SMS and mobile data is still working fine.
The phone connects to the network service fine. (I'm on Straight Talk.)

Just can't make or receive any phone call...

I found out that the phone's IMEI shows "0" so thought the issue I had must have something to do with the null IMEI.

I knew that I had EFS backup (it's about a month old), so I tried to manually restore them (all 3), but the result is the same..

Now, I don't know what to do.. Can anyone help me out?
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