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Firmware ​

Download the Mew40 firmware and flash it to the RP2040-Tiny.

Downloading the Firmware ​

  1. Download the latest Firmware.zip from GitHub Releases and extract it to a folder of your choice.

Downloading the Firmware

Flashing the Firmware ​

  1. Connect the USB port adapter to your PC with a USB Type-C cable, then press and hold the BOOT and RESET buttons at the same time; release RESET, then release BOOT.

Flashing the Firmware

  1. When your PC recognizes a drive named RPI-RP2, copy nekobako_mew40_vial.uf2 from the extracted folder to the root of the drive.

Flashing the Firmware

Information

When flashing is complete, the drive disconnects automatically and the keyboard restarts.

Information

nekobako_mew40_vial.uf2 supports Vial, while nekobako_mew40_default.uf2 does not support Vial.

Verifying the Firmware ​

  1. Open Vial Web, click the Start Vial button, and check that the keyboard is recognized.

Verifying the Firmware