Copy the .zip firmware to a FAT32-formatted SD card or USB drive. Open the app on the TV box.
Community forums like , 4PDA , and FreakTab are the best sources for "fixed" S905L2 ROMs. Look for "SlimBoxTV" or "AidansROM" builds, as these are widely considered the gold standard for Amlogic performance. amlogic s905l2 firmware fixed