Changing a HP dvd556s writer back to a Liteon esau208



Hi, I have a HP dvd565s external dvd writer (MH24 firmware). After finding on that it is Lite-on eSAU208 i would like to flash it, because i need bitsetting to be functional.
Unfortunatelly, searching the forum and also i could not find the firmware for Lite-On eSAU208 which i could use with flash utility.
With flash utility and eeprom utility i was able to download
them to HD. See attached.
I also tried the official liteon firmware but with an error “no matched drive detected!”
Please, can someone help me to solve this?
By providing the firmware which can be used with flash utility? Or by modifying HP F/W by unlocking bitsetting?
Thanks in forward