The , model SM-T285 , does not officially support Android 10 . The tablet reached its end-of-life for official software support years ago, with the latest official firmware being Android 5.1.1 (Lollipop) or, in some regional variations, potentially up to Android 8.1 .
If you need Android 10 to run newer apps or for better security, the only way is to "flash" a custom operating system like . 1. Recommended ROMs smt285 android 10 upd
: Ensure your tablet's bootloader is unlocked (usually found in Developer Options as "OEM Unlock"). The , model SM-T285 , does not officially support Android 10