Passkey: Seamless 4K UHD Drive Firmware Downgrade Solution

Advanced and Powerful

Downgrade UHD Unfriendly Firmware for Normal Backup

The existing firmware inside 4K UHD drive (also called 4K Blu-ray drive), either 4K Blu-ray internal drive or external 4K Blu-ray drive, might be unfriendly for reading UHD disc data and further copying UHD discs to hard drive or onto computer, or ripping UHD disc to digital formats for playback on multiple devices. Here comes a firmware downgrading tool, Passkey UHD Drive Tool, which is designed to help you downgrade the current firmware on your 4K UHD drive, so that you can make legal backups of your 4K Blu-ray discs with 4K UHD backup tools, such as UHD Copy and UHD Ripper.
Broadly Compatible

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.
Simple and Intuitive

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

Currently, nearly a dozen popular 4K UHD drives from leading brands like LG and ASUS are supported. More drives will be added in the future.
BrandDrive ModelTypeSupported FirmwareFirmware VersionStatus
LGUH12NS40Internal, BDXL, SVC code: NS401.001.01/1.02Tested
BP55EB40External, BDXL, SVC code: NB501.001.02/1.03—
WH14NS40Internal, UHD Friendly, SVC code: NS501.001.01-1.05Tested
WH16NS40Internal, UHD Friendly, SVC code: NS50NS50_1.021.03-1.05Tested
BH16NS40Internal, UHD Friendly, SVC code: NS501.021.03-1.05Tested
BH16NS55Internal, UHD Friendly1.001.01-1.05Tested
BH14NS58Internal, UHD Friendly1.001.01/1.02Tested
BH16NS58Internal, UHD Friendly1.001.01/1.02Tested
WH16NS58Internal, UHD Friendly1.001.V5-1.V9Tested
BE16NU50External, UHD Friendly1.011.02-1.04Tested
BU40NInternal, UHD OfficialCAT9——
BU50NInternal, UHD OfficialCC01——
WH16NS60Internal, UHD Official1.001.02/1.03Tested
BP60NB10External, UHD Official1.00MK/1.02MK1.02Tested
ASUSBC-12B1ST bInternal, UHD Friendly, 2015+3.003.01-3.11—
BC-12D2HTInternal, UHD Friendly, 2015+3.003.01-3.11Tested
BW-16D1HTInternal, UHD Friendly, 2015+3.003.01-3.10Tested
BW-16D1H-UExternal, UHD Friendly, 2015+A201A202/A203/A204—
HPHLDS BU40NInternal, UHD OfficialBW41——
HLDS BU50NInternal, UHD OfficialBW50——
BuffaloBU40NExternal, UHD OfficialBU10BU13/BU14/BN12/BN13Tested
ArchgonMD-8107S-U3-UHD BU40NExternal, UHD Official1.00—Tested

How UHD Drive Tool Works

Here are three simple clicks to downgrade unfriendly firmware on 4K UHD drive for the purpose of smooth 4K UHD backups.

Step 1. Launch Passkey UHD Drive Tool
First, double click to run Passkey 9 and press the "Start Passkey" button. The program will minimize itself to the system tray. Then, right-click the Passkey icon from the system tray and select "Downgrade Firmware".
Step 2. Select your UHD drive from the available drive list
Choose your 4K UHD drive from the drop-down menu. All the listed 4K UHD Drives are supported by this are supported by this 4K UHD Drive Tool.
Step 3. Hit 'Downgrade Firmware'
Tab ‘Downgrade Firmware’ to proceed with the downgrading task. A successful report will pop up when the friendly firmware is flashed. Once done, reboot your PC.

System Requirements

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Windows 11/10/8.1/8/7 (64 bit)
Core 2 Quad and above
2GB of RAM
10GB of free hard disk space
Live Internet connection required