The xdelta patcher checked your original file and found that it does not perfectly match the original file used by the patch creator. Even a tiny 1-byte difference will cause xdelta to abort to prevent creating a corrupted file.

is a mobile utility that applies binary patch files ( .xdelta , .patch , .vcdiff ) to existing files – typically large game ROMs, ISO images, or app backups. It ports the classic xdelta3 command-line tool to Android with an intuitive graphical interface.

Once complete, a toast notification reading "Patching complete" or "Success" will appear. Common Use Cases for Android Users Retro Gaming and ROM Translations