Pioneer: Bdr-ud03 Firmware //free\\
your BDR-UD03 for UHD support, or do you need help identifying your current firmware version
Cross-flashing is dangerous. If you flash the wrong bootloader version, the drive will become a brick (unrecognizable by BIOS). The BDR-UD03 has a small EEPROM. Incorrect flash -force commands have killed many drives. pioneer bdr-ud03 firmware
