Update device

Firmware update

Updates the collar's main processor — wirelessly over BLE, or over a USB-C cable. The radio module is a separate part that rarely needs updating; it has its own section at the bottom. Use Chrome or Edge.

INSTALLED
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AVAILABLE
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Not connected
Main processor the collar itself — pick either method below
Over BLE No cable v1.14.0 or newer · any OS

Sends the new firmware to the collar wirelessly — no cable, no opening the case. The collar checks it, installs it and restarts itself. Your existing settings are kept. This takes several minutes: keep the collar nearby and leave this page open until it finishes.

1 Connect with Scan & Connect at the top of the page — keep the collar close and still for the whole update
2 Pick the firmware image
3 Send it — wait for the bar to reach 100 %
4 Wait — the collar checks the update and restarts itself. It will disconnect; that's normal and usually takes under a minute. Swipe the magnet to wake it, then connect and check the version above.
Over USB-C Cable any version · macOS / Linux

Works on any firmware version, including collars too old to update over BLE. Use this for a first-time update or to recover a collar that will not start. Requires opening the enclosure to reach the port. The update rewrites only the pages the new firmware occupies: the collar keeps its LoRaWAN frame-counter floor and any stored keys.

Not supported on Windows. Windows blocks browsers from accessing the device in DFU mode, so Connect & Flash will not detect the device. Follow the Windows flashing guide instead, or use the BLE method above.
1 Put the collar in BLE mode (steady blue LED) and connect with Scan & Connect at the top of the page
2 Reboot the device into DFU mode — it will disconnect from BLE
3 Select firmware and flash over USB-C
4 Verify & reboot — automatic; wait for the boot animation, then close up
▸ Radio module a separate part — rarely needs updating

Updates the BLE radio over the air, in one connection: the new firmware is streamed to the device, verified, then applied in a few seconds while it reboots. All settings (pairing, schedules, armed detach times) survive. If the transfer is interrupted, the current firmware keeps running — just upload again. This updates the radio module, not the main processor covered above. Collars from before the MkII Mesh version can only have their radio updated over a cable, and a MkII Mesh collar still on its original radio firmware needs one wired update first — the page tells you which applies once you connect.

1 Connect with Scan & Connect at the top of the page — a collar (steady blue LED) or a detachment node (swipe the magnet to wake it)
2 Pick the firmware image
3 Upload — the device verifies, reboots, and comes back on the new firmware
Handheld Receiver the receiver you carry — not a collar
Over USB Cable Chrome or Edge

Puts the current software on a Handheld Receiver. Also brings back one that will not start after an update stopped part-way. The receiver keeps its settings, its keys and everything it has heard.

1 Connect the receiver to this computer with a USB cable
2 Press its reset button twice, quickly — a drive named ELECROWBOOT appears on the computer

The reset button is inside the small hole beside the USB socket, on the bottom edge. Reach it with something thin and pointed, such as an opened paper clip or a SIM-tray pin, and press twice about half a second apart.

3 Choose that drive — the page reads which receiver it is and puts the right software on it
Without the Update button

Download the file for your receiver and drag it onto the drive. The receiver restarts by itself.

Release notes

Select a server firmware version to see its description.

Full changelog →