How to perform the downgrade procedures exactly and what drives are supported?

2020-04-25 01:55:30

To downgrade the firmware on your UHD Drive, please follow the steps below:


Step 1 — Plug in your UHD Drive to your PC (skip this if you have an internal drive ).  


Step 2 — Take out any disc from the drive, launch UHD Drive Tool from DVDFab -> Utilities.



Step 3 — Select your UHD drive from the available drive list.



Step 4 — Click “Downgrade Firmware” button. Wait as the Friendly firmware is flashed and success is reported.



Step 5 — Restart the computer. 


NOTE: The entire process may take 2~3 minutes to finish. Please be patient!

Don’t power off drive or PC! Don’t attempt to perform any operation with the drive!


As of now, the supported drive list contains the following drives: 


BDXL drives:

  • LG UH12NS40 (internal, SVC code: NS40) Tested
  • LG WH16NS40 (internal, SVC code: NS50) Tested

UHD friendly drives:

  • LG WH14NS40 (internal, SVC code: NS50) Tested
  • LG WH16NS40 (internal, SVC code: NS50) Tested
  • LG BH16NS40 (internal, SVC code: NS50) Tested
  • LG BH16NS55 (internal) Tested
  • LG BH14NS58 (internal) Tested
  • LG BH16NS58 (internal) Tested
  • LG WH16NS58 (internal) Tested
  • LG BE16NU50 (external, USB) Tested
  • ASUS BC-12B1ST b (internal, manufactured 2015+) 
  • ASUS BC-12D2HT (internal, manufactured 2015+) Tested
  • ASUS BW-16D1HT (internal, manufactured 2015+) Tested
  • ASUS BW-16D1H-U (external, USB, firmware version starts with letter A, manufactured 2015+)

UHD official drives:

  • LG BU40N (slim, USB or laptop: Fujitsu, Dell, Nec)
  • Buffalo BU40N (external, USB) Tested
  • Archgon MD-8107S-U3-UHD BU40N (external, USB) Tested
  • hp HLDS BU40N (internal, laptop: HP)
  • LG BU50N (internal, laptop: Lenovo)
  • hp HLDS BU50N (internal, laptop: HP)
  • LG WH16NS60 (internal, recommended) Tested

Note: This list will be constantly updated as we support more drives in the days to come.

① Downgrade the UHD-unfriendly firmware of a 4K UHD optical drive
② Support all the mainstream 4K UHD drives from major manufacturers
③ Constantly update the tool to support more 4K drives from the future
④ Make the downgraded 4K UHD drive compatible for 4K Blu-ray backup
⑤ Offer super-easy downgrade process operable even by unskilled hands