[help] network problem - imei Matter - imei NG

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MasnarT81

New member
Aug 21, 2016
2
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Hi
So I bought this phone used.
I put sim card .. the phone shows the Carrier, even shows the APN settings . But I can't make calls (emergency calls only)

The imie of the device found on back is For Factory Unlocked 928A and I contacted ATT and confirm it's unlocked.

The Problem is : when you dial *# 06 # the phone shows a different imei number. And this particular number when looked up doesn't belong to any device on Earth. Using imei checker. And when going to service mode it shows imei: NG

So.
The first step on solution is to restore the original imei number that belongs to the device . That's logic right ?

How can I?
What about efs partition ?

I am on latest Nougat. Can't downgrade to 5.1.1 to root and try to change imei or restore efs

Trying downgrade in Odin give FAIL lol

What to do ? Excuse my English.