ContribucionesMost RecentMost LikesSolutionsRe: MMS issues after switching -Unlocked Samsung Galaxy S21 Ultra 5G Everything is grayed out so I am unable to edit anything. Re: MMS issues after switching -Unlocked Samsung Galaxy S21 Ultra 5G Re: MMS issues after switching -Unlocked Samsung Galaxy S21 Ultra 5G Set up WITH T-Mobile SIM, and her phone is an Android. MMS issues after switching -Unlocked Samsung Galaxy S21 Ultra 5G Please help! I've gone through the DIY MMS settings changes, restarted phone, etc. I have an unlocked Samsung Galaxy S21 Ultra. My sister can receive MMS from me, but my best friend can't.
