I purchased an unlocked at&t s 10 5g Galaxy. I put my s7 sim card in the phone. It works- makes phone calls and connects to 4glte. I get no connection with 5G and Im in the Sacramento area - I have driven all throughtout the county- No 5G.
Tmobile Tech support on the phone said t mobile 5g wont work on this unlocked att s10 5g . Im getting conflicting answers.
Is there a setting to change? A different sim card?
Thank you for any help