Support All Types of 4K Blu-ray Drive and USB Drives
As an UHD drive tool, it is fully compatible with almost all UHD drives on the market, including 4K Blu-ray internal drive with SATA interface, and external 4K Blu-ray drive or USB drives. In addition, whether your UHD drive is using AHCI or IDE interface, both are supported to be downgraded.

Truly 'One-Click' Mode Made it Easy for Everyone
This handy firmware flash utility is easy-to-use with intuitive interface. No profound knowledge or special skill is required to perform the downgrading process, whether for novices or experienced users. Whatever kinds of 4K Blu-ray optical drive you have, all you need to do is start up the interface and click one button to finish the downgrading process.

Supported 4K UHD Drive List
As of now, nearly a dozen of popular 4K UHD drives produced by major manufacturers, such as LG and Asus, have been supported.

BDXL drives:

LG UH12NS40 (internal, SVC code: NS40) Tested
LG BP55EB40 (external, SVC code: NB50, USB)
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
We will support more drives in the future.

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