5G compatability

[Jchip9]

I purchased a xfinity s20 ultra from a friend who moved on to IPhone. The phone has been unlocked and I am using it on t mobile. I cannot get the 5g to work tho only 4g lte. Any idea if I can make this 5g on tmobile? I went to a t mobile store but they couldn't figure it out.

[DaveO3]

Not likely. You need the S20 Ultra 5G model that was also introduced in March 2020. 

Here is the link to the T-Mobile 5G coverage map: https://www.t-mobile.com/coverage/coverage-map?icid=MGPO_TMO_U_5GNETWORK_FDZWJ4CHT9KGTBURC22324