I managed to update a Samsung S9 starlte to the latest Android S build via the OTA test channel, and wonder if I have to follow the steps described in the installation docs to upgrade to the Android T (Android 13) community build.
Or is a dirty flash with adb sideloading the community T build sufficient?
Thank you for any help or suggestion.
Sorry for bothering you. I found the answer myself. I flashed the latest community build recovery using heimdall command, and installed the the latest T-community build (/e/OS/3.0-t-20250531…) via adb sideload, omitting the wiping and formatting steps. All data were kept, no data was lost. No restore from backup needed.
Having ‘official’ (stable) implies sometimes that bootloader is locked, I have no overview of old and current lockable devices. Just giving some thoughts for others when they read your journey if they use other device