Disclaimer: This process involves unlocking the bootloader and wiping your device. Proceed at your own risk. We are not responsible for bricked devices.
This guide is exclusively for the SM-T280 variant (Wi-Fi only). Do not attempt these steps on the SM-T285 (LTE variant) or other Galaxy Tab A models, as doing so will permanently damage the device firmware. Verify your model number in Settings > About Device . galaxy tab a6 smt280 custom rom exclusive