Brand New Samsung Galaxy S21 Ultra 5G not compatible?
I bought a factory unlocked Samsung Galaxy S21 Ultra 5G from Amazon and I plopped in my existing Xfinity Mobile sim from my old iPhone 8 Plus and the LTE data worked.
I made the mistake of updating the IMEI in the Xfinity Mobile app to get 5G and the data turned off completely. After chatting with a support agent I was told that this phone wasn't compatible.
Now I don't blame the agent, he did everything he could, but how in the world is a brand new modern phone that Xfinity Mobile actually sells not compatible at all, especially when the 4g data worked? Is there any way for Xfinity to become compatible with what's otherwise a modern, mainstream phone?