Hi I am ported to XM with 2 lines using BYOD. Now I wanted to move out of XM as no more able to keep xfinity internet. But every time my other provider getting invalid account number error when they try to port my number. I tried with 2 different provider both getting same error. Also tried with Xfinity mobile account number and internet account number still same error. I had call with agent every they said account number is correct.
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I did the factory reset the phone but it did not help.
I came across the below thread on Reddit and it worked for me. I had to update/replace the firmware of the phone to firmware made for Xfinity Mobile.
Firmware installation is pretty easy on Samsung phones, only you need Odin Windows Software and Firmware file. Connect the phone and install the firmware. You can find tutorials on Google/Youtube.
I downloaded Xfinity firmware from https://www.sammobile.com/
The version picked is: https://www.sammobile.com/samsung/galaxy-s8/firmware/SM-G950U/CCT/download/G950USQS7DTA3/313677/
Please check for "Comcast (CCT) " while downloading any firmware that is for Xfinity Mobile.
This way I think you can use any Galaxy S8 and above phones with Xfinity Mobile even IMEI says it is incompatible. Only you need is SIM from Xfinity mobile and phone updated with the latest Xfinity mobile firmware.
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