Nec dv 5800a

trying to update the firmware to this dvd rom drive and having major troubles found the lastest firmware on rpc1 but having extreme trouble within dos mode to do this please any suggestions please need help i know there are later versions than 1.07 for this drive. I’ve been able to boot into dos mode and did everything the readme.txt said to do and still the same firmware version

I suggest you read the info there carefully: http://forum.rpc1.org/dl_firmware.php?download_id=125