Connect your tablet to the PC via USB. One of the ID:COM boxes in Odin should turn blue or yellow, indicating a successful connection.
The initial boot after installing a custom ROM takes significantly longer than standard restarts. Expect the boot animation to loop for anywhere between 5 and 15 minutes while the new Android operating system initializes files and structures. Common Troubleshooting Tips galaxy tab a6 sm-t280 custom rom
Use a high-quality, OEM micro-USB cable to connect the tablet to your computer. Connect your tablet to the PC via USB
Boot into : Press and hold the Volume Down + Home + Power buttons simultaneously. Release them when a warning screen appears, then press Volume Up to confirm. Open Odin.exe on your PC as an Administrator. Expect the boot animation to loop for anywhere
You remain locked out of newer apps that require Android 6.0 or higher. Essential Prerequisites
Click on the tab in Odin and uncheck Auto-Reboot . This step is critical; if the device reboots normally, it will overwrite your custom recovery.
Download your chosen ROM package (in .zip format). Keep this file compressed.