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Re: Unlocked s21 Ultra showing as "Unknown Device" and not supporting 5G or Extended Range LTE on My Mobile account
Futbol.dad68 wrote: I have the same issue, my Samsung S21 Ultra is showing up as unknown device. I was looking into Xfinity Mobile since Verizon has better coverage in my neighborhood but they're telling me my device is not compatible. It can't be true since Xfinity sells the S21 Ultra. Not sure exactly, but I'm thinking it's related to this issue, which is frustrating. Is your device a T-Mobile branded device and if so where was it bought from ? It it's a T-Mobile branded device bought from any authorized dealer other than TMobile directly then it's the same issue as me. Because T-Mobile state that they can't process sim unlock requests because the IMEI isn't recognized due to it not being in their system. Ive already filed a complaint to the FCC. Since it's unacceptable that a phone should remain sim locked with no avenue to get it unlocked due to system limitations.0Visto0likes0ComentariosRe: Unlocked s21 Ultra showing as "Unknown Device" and not supporting 5G or Extended Range LTE on My Mobile account
fireguy_6364 wrote: if its a TMO variant then it should already be in their system..it was branded for them after all..which if memory serves if you purchased it from another vendor it must be on their network for a certain amount of days before it can be unlocked by TMO. 40 days i believe for Post paid and a year for Pre paid or something along those lines. It should be in their system , but it isn't in their system hence the post. Similar to when I purchased a T-Mobile device from Samsung directly.1Ver0likes0ComentariosRe: Unlocked s21 Ultra showing as "Unknown Device" and not supporting 5G or Extended Range LTE on My Mobile account
I've got the same problem as I have in the past. Just to clarify we're talking about official USA Samsung T-Mobile devices purchased in the USA from vendors other than T-Mobile directly and not dual sim international Samsung devices. I purchased a T-Mobile Samsung S21U from Best Buy USA. It is not recognized by T-Mobile because the IMEI number is not in their system. Now this is a major problem for me because the IMEI needs to be in T-Mobiles system for a sim unlock request to be fulfilled. I had a similar issue in the past with T-Mobile Samsung devices bought from Samsung directly. T-Mobile claim they can't sim unlock the device because it's not in their system. I have already contacted T-Force via Twitter but have been told to wait at least 14 days to get a response. We'll see.1Ver1like0Comentarios