Originally Posted by 08Bit
I got a used oneplus 7 pro as gift my dad a while back. I have recently realized that the IMEI of the phone has been tampered with as the IMEI mentioned on back of the phone does not corresponds with the one shown inside the phone. I have searched IMEI shown by the phone and it is registered to some GFIVE phone. Due to the current tax policies of my government on imported phone, the previous owner has probably changed it's IMEI to that of cheaper phone to avoid paying tax. The phone didn't come with a box so the only IMEI that I have is the one written on the back of the phone. I have three questions
1. Is there a way to validate that the IMEI written on back is in fact the actual IMEI of the phone?
2. The phone is dual sim so why there is only one mentioned on the back? If there should be two then is there a method to determine the second IMEI number?
3. Is it possible to reset the phone to it's original IMEI?
If the IMEID is engraved on the back of the phone, you might have a T-Mobile version that was obtained in the US.
In the US the T-Mobile version has that engraved on the phone back.
You should go into "Settings" -> "About Phone".
You will be able to see the model.
That is the first step to see what phone you actually have.