Samsung A9 Pro Custom Rom ((top)) «Real»

It isn't a perfect transition.

: For models that are Treble-compliant, Generic System Images (GSIs) allow users to install a variety of modern Android versions (up to Android 14/15) even if a specific ROM isn't built for the A9 Pro. Key Benefits of Flashing samsung a9 pro custom rom

support is not currently listed for this specific legacy model, unofficial builds and alternative methods are available: TWRP Recovery It isn't a perfect transition