: Boot into TWRP and perform a "Wipe" of Dalvik, Cache, System, and Data. : Transfer the ROM file to an SD card and use TWRP's menu to flash it. Optional GApps : If you want the Google Play Store, you must flash a (Google Apps) package immediately after the ROM. How to Install a Custom ROM on Any Android Phone (Example
If you absolutely must install a Custom ROM, look for on the XDA Developers forums (specifically the Galaxy Tab A 7.0 section). It is free and provides a clean interface. sm t285 custom rom android 7 free
If you want to proceed, your best resource is not a single "paper," but a specific development thread on . This is the only trustworthy source for technical details on this specific model. : Boot into TWRP and perform a "Wipe"
Samsung Galaxy Tab A 7.0 (2016) SM-T285 , there is no official Android 7 update, but you can upgrade using unofficial custom ROMs like LineageOS 14.1 , both based on Android Nougat 7.1. e/OS community Available Android 7 Custom ROMs LineageOS 14.1 (Android 7.1.2) How to Install a Custom ROM on Any