Flashing this file triggers Samsung’s . Once the TAR is flashed, a hardware fuse is blown, permanently marking the device as "modified." This usually voids the warranty and disables certain secure features like Samsung Pay or Secure Folder.
The SM-T560 shipped with TouchWiz and various pre-installed apps that slowed down its modest hardware. TWRP allows the installation of Custom ROMs (like LineageOS), stripping away the "fat" for a leaner experience. Twrp-3.0.2-1-sm-t560.tar
The .tar file is corrupted. Redownload twrp-3.0.2-1-sm-t560.tar from a reputable source (like the official TWRP.me site or XDA Developers forums). Do not rename or edit the file. Flashing this file triggers Samsung’s