• QMK Toolbox (Beta)
  
• Bridge75 Firmware
  Bridge75 ISO V2 RC2 (v2_00 RC2)
  Bridge75 ANSI Plus & Max V2 RC2 (with RGB / v2_00 RC2)
  Bridge75 ANSI Classic V2 RC2 (no RGB / v2_00 RC2)
• Bridge75 VIA JSON
  Bridge75 ISO VIA JSON (Right click -> Save as)
  Bridge75 ANSI VIA JSON (Right click-> Save as)
• Bridge75 VIA Guide
• Firmware GitHub Source Code

Disclaimer: Please only carry out firmware updates advised by our support team, otherwise the warranty will be voided.

To update the firmware of the Bridge75, please proceed as follows:

1) Set the keyboard to cable mode using Fn+~

Do not connect the USB-C cable to the PC yet

2) Deactivating the battery power supply

Remove the top cover of the keyboard and set the switch between Fn and the left arrow to Off

3) Connect the keyboard to the PC in DFU Flash mode

Hold down Esc while connecting the USB-C cable to the keyboard.

4) Open QMK Toolbox

To open QMK Toolbox, right-click on the .exe file and select “Run as administrator” to enable the driver installation

5) Install drivers for DFU Flash mode

In QMK Toolbox, go to Tools -> Install Drivers while the keyboard is connected in DFU Flash mode to install the necessary drivers

6) Flashing the firmware

As soon as the keyboard is recognized in QMK Toolbox (recognizable by the yellow “WB32 DFU device connected” line), you can select the firmware file for your keyboard via Open and Flash the latest update.

7) Exiting DFU Flash mode

After the new firmware has been successfully installed (Flash Complete appears), you can exit DFU Flash mode with “Exit DFU” and then once reconnect the usb connection before using the keyboard again. To use the wireless mode, the battery switch can be set back to On, the USB dongle may need to be paired again to the keyboard.

8) After the firmware has been flashed and the keyboard is connected back normally again, you need to clear the EEPROM by pressing Fn+ESC

For further configurations you can use VIA with the matching ANSI or ISO JSON file found on top of this page.

V2 Firmware Changelog

Release Candidate 2 (2025-07-13):

• Bridge75 Deep sleep fix on by default (can be disabled by holding FN+S for roughly 10 seconds)
• Bridge75 Add indicator when deep sleep fix is disabled (blink S key RED when FN is held)
• Bridge75 Add indicator when in MAC Mode (blink ALT/WIN key WHITE when FN is held)
• Bridge75 Add support to disable RGB sleep when using USB (FN+NUHS on ISO or FN+\ on ANSI)
• Bridge75 Reduce key matrix wireless processing latency
• Bridge75 Fix RGB brightness limit allowing for brighter RGB