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Question IMEI broken after switching Color OS to Oxygen OS

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Raezor92

New member
Aug 5, 2020
3
2
Hello there

I just bought my OP9 pro from Aliexpres, Chinese version with official Global ROM but I read for some members than their IMEI broke up when they installed Oxygen OS.

I want to know if this happens 100% of the time, any of you could revert this or found a solution?
If the seller sends me the smarthphone with the IMEI broken could I fix it later?

Sorry for bad english
 
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mWatcher

Member
Jun 13, 2019
18
0
Hello there

I just bought my OP9 pro from Aliexpres, Chinese version with official Global ROM but I read for some members than their IMEI broke up when they installed Oxygen OS.

I want to know if this happens 100% of the time, any of you could revert this or found a solution?
If the seller sends me the smarthphone with the IMEI broken could I fix it later?

Sorry for bad english
same here, I am about to do it
 

Sconny

Senior Member
Mar 29, 2015
173
49
AFAIK you can fix it by backing up modemst1.bin and modemst2.bin, so basically your EFS Partition. But i can not remember how to backup them with this phone
 

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    Hello there

    I just bought my OP9 pro from Aliexpres, Chinese version with official Global ROM but I read for some members than their IMEI broke up when they installed Oxygen OS.

    I want to know if this happens 100% of the time, any of you could revert this or found a solution?
    If the seller sends me the smarthphone with the IMEI broken could I fix it later?

    Sorry for bad english