Billycar11 over at Makemkv posted the easy and safe way. Download here: https://drive.google.com/file/d/1k2h5In3iFM8rnVZlLSXSpJ1koUFPveUD/view?usp=sharing Look at this Polish forum how to do it. You don't need to download anything there since Billycar11's files are more recent. Just for you to see how it works. https://forum.cdrinfo.pl/f29/crossflash-blu-ray-lg-serii-ns50-ns51-ns55-ns58-96313/ I made my LG BH16NS55 1.02 an ASUS BW16D1HT 3.02 w/o any hassle and fumbling wit EEPROM calibration data since all is preserved that way. Works also with USB drives! You need to reboot after this!