Android 6.0+ introduced forced encryption. TWRP 3021 can see the encryption but cannot decrypt it without a pattern/password. Fix:
: Tap "Reboot System." The first boot can take 10-15 minutes, so be patient.
You can flash Magisk or SuperSU zip files to gain administrative rights. twrp3021smt560tar full
: Ensure your SM-T560 has at least 60% battery capacity to prevent unexpected shutdowns during the flash cycle.
: Install Samsung USB Drivers to ensure your PC recognizes the tablet. Enter Download Mode : Power off your tablet completely. Android 6
However, this freedom comes with significant risk. The installation process often requires unlocking the bootloader, a step that voids warranties and triggers security flags (such as Samsung’s Knox e-fuse). Once this fuse is tripped, secure features like Samsung Pay or Secure Folder are permanently disabled. Thus, the decision to utilize the twrp3021smt560tar file is a calculated trade-off: sacrificing manufacturer-backed security guarantees in exchange for absolute control and customization.
With the tablet still plugged in and off, force a shutdown by holding . You can flash Magisk or SuperSU zip files
Make sure your Galaxy Tab E has at least 50% battery . A power outage during the flashing process could damage the device.
Connect your tablet to the PC via USB. Odin should show a blue "ID:COM" box.