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WEB FLASHER

Download and flash official HaleHound™ firmware to your board, straight from your browser.

Connect & Flash downloads the HaleHound™ firmware for your selected board to your browser and installs it on the device over USB.

Checking you're human…
Web Serial is not supported in this browser. Flashing is only allowed over HTTPS.
When you click Connect & Flash, a port popup appears. It's filtered to real boards, so you'll usually see just one entry - named USB Serial, CH340, wchusbserial, or CP210x. That's your HaleHound. Pick it and hit Connect.
  1. Unplug other USB gadgets, then plug in only your HaleHound with a data USB cable (not charge-only).
  2. Pick your exact board from the menu above.
  3. Click Connect & Flash, pick the one port in the popup, and confirm.
  4. Leave it connected until it reports done, then unplug and replug to reboot.

Port popup empty / board missing? Install the USB driver - CH340 (most boards) or CP210x - then replug and retry.  Wrong board picked? It may go to a black screen - just re-flash the right one, nothing is harmed.

HaleHound™ firmware v3.9.0 · official build