Ensure your phone has at least 70% battery capacity to prevent it from shutting down mid-process.
The first boot can take anywhere from 5 to 15 minutes. Do not interrupt the process. Popular Custom ROM Options for the Galaxy A9 Pro samsung a9 pro custom rom
Installing a custom ROM breathes new life into this classic smartphone. This guide covers everything you need to know about choosing, preparing, and flashing a custom ROM on your Samsung Galaxy A9 Pro. Why Install a Custom ROM on the Galaxy A9 Pro? Ensure your phone has at least 70% battery