I bought my S8 off a friend in sealed box and it was unlocked. My Sim was too big so my friend put his Sim in it to get it running and let me use it until I got my Sim with my number cut down. I have now my own Sim in the phone and it is working fine but when I registered my phone using the IMEI number it shows my number as the one my friend used to set it up. Can it be changed to show my number.

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