Android 10’s recovery implementation and the introduction of the “super” partition containing multiple dynamically resizable partitions has considerably slowed down the process of porting TWRP to devices running Android 10 out of the box. However, older non-Pixel phones that have been updated to Android 10 via OTA are not affected by those changes because they are not required to migrate to the new super partition scheme.
Owners of the Exynos variant of the 2018’s stylus-dwelling Samsung flagship can grab the ODIN-flashable TAR archive, while one can also pick the raw IMG file to flash from an existing TWRP environment. According to the developer, the current build works with the Android 9 Pie-based firmware as well. The U.S. and Canadian Galaxy Note 9 models with the Qualcomm Snapdragon 845 SoC, however, are still unsupported because their bootloaders cannot be unlocked.
Thanks to their internal similarities, the Exynos Galaxy S9and Galaxy S9+ have also received updated TWRP builds alongside the Galaxy Note 9 from the same developer. The Galaxy S9 duo did receive official TWRP support back in 2018, but the former maintainer kind of abandoned them for a long time. Corsicanu is now the official TWRP maintainer for these phones, and he has created a common discussion thread for the S9/S9+.
