Advanced Users Only. If you are stuck on Android 10 and OTA isn't working, or you want to change the region of your device, you can download the firmware directly from repositories like SamMobile or Frija and flash it using the Odin tool. This allows you to force the installation of the Android 11 or Android 13 update.
Fix: You have the wrong ROM variant. Download the version matching your exact model (SM-T285 vs SM-T280). smt285 android 10 upd
A developer known as "DarkJoker360" (and others on XDA) maintained an unofficial build of LineageOS 17.1 for the SM-T285 (codenamed gtowifi or gtovelte depending on 3G/LTE variant). Advanced Users Only
What works:
What is broken (critical):
Fix: You installed the wrong GApps (e.g., Stock instead of Pico). Reflash ROM and use OpenGApps Arm - Android 10 - Pico. What is broken (critical): Fix: You installed the