ContribucionesMost RecentMost LikesSolutionsoneplus 9 pro authorised OxygenOS 13 gone I downgraded my oneplus 9 pro to OOIS 12. After downgraded my device model was changed also some authorised app was gone like phone dailer,message. So I wanna know that How can I get back T Mobile OOIS 13/12? someone can please help me to find the outhorised OOIS 12/13?
