Flash official HaleHound firmware straight from your browser. Nothing to install.
This browser can't flash. Web flashing needs Google Chrome or
Microsoft Edge on a desktop (Windows / macOS / Linux / ChromeOS).
Safari, Firefox, and all phones/tablets are not supported. Re-open this page in Chrome or Edge to continue.
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.
Unplug other USB gadgets, then plug in only your HaleHound with a data USB cable (not charge-only).
Enter your code and pick your exact board above.
Click Connect & Flash, pick the one port in the popup, and confirm.
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.