RP2040 / RP2350 Firmware Flasher

A standalone browser-based flasher. Choose a UF2 file, detect your Pico-family MCU, grant USB access and flash it directly from Chromium.

Step 1/4 Ready

Put the board into BOOTSEL mode: unplug it, hold BOOTSEL/BOOT, plug USB in, then release the button.

MCU: not detected
Step 2/4 Pending
Chip family
Detect MCU first
UF2 firmware
No file selected
Select a UF2 file to validate it.
Step 3/4 Pending

Grant the browser access to the RP bootloader, then flash.

USB: not connected
Step 4/4 Pending
Flash completed.

You can reconnect another board or flash again.

File name: (none)
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