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

2019-03-25 23:28:23

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


(Click this link to watch the video tips:


Step 1 — Change the SATA port mode of your UHD drive's connection to IDE mode (Click here for How). 


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 computer. (Please switch back from IDE to AHCI if you switch the SATA Mode before).


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: 


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 UH12NS40 (internal) 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 a/b (internal, manufactured 2015+) Tested for a

ASUS BC-12D2HT (internal, manufactured 2015+) Tested

ASUS BW-16D1HT a/b (internal, manufactured 2015+) Tested

ASUS BW-16D1H-U (external, USB, manufactured 2015+)


UHD official drives:


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