The TBT4-UDZ generally does not require for the firmware to be updated, however, in some cases a new firmware version may be helpful if you are experiencing the following issue, and after standard troubleshooting (such as driver updates and firmware updates to the host system) has not helped:

• DisplayPort attached display(s) are detected but displaying no image on screen.

Note: Updating the dock firmware will not help with other non-video related issues, if experiencing other issues please contact us at support@plugable.com and we'll be happy to assist.

If you are experiencing the above issue, to update the firmware you will need access to a Windows 10 or Windows 11 system with Thunderbolt 3, Thunderbolt 4, or USB4. (Standard USB-C systems may also support the update process if they support USB-C DisplayPort Alternate Mode.)

The firmware update cannot be performed on a Mac system, or systems running Linux. If you do not have access to a compatible Windows system to perform the firmware update please contact us for assistance.

Please follow these PDF instructions to download and perform the firmware update: https://media.plugable.com/downloads/kb/1707049/tbt4-udz_firmware_update_procedure.pdf

If you encounter any issues during the firmware update process, or have any additional questions please contact us at support@plugable.com and we'll be happy to assist.