ContribucionesMost RecentMost LikesSolutionsRe: Unlocked s21 Ultra showing as "Unknown Device" and not supporting 5G or Extended Range LTE on My Mobile account All seems to be working I was just curious why it says that My wife has note 20 and hers doesn't say that. Re: Unlocked s21 Ultra showing as "Unknown Device" and not supporting 5G or Extended Range LTE on My Mobile account I bought from t-mobile store I guess I'll go to store and ck Re: Unlocked s21 Ultra showing as "Unknown Device" and not supporting 5G or Extended Range LTE on My Mobile account Why would they not have IMEI in there system. I bought phone from them? Re: Unlocked s21 Ultra showing as "Unknown Device" and not supporting 5G or Extended Range LTE on My Mobile account I have a s21 plus Got from t-mobile store Says same thing T-mobile has no idea.
