@zwave-js/flash

Z-Wave JS: Firmware Flasher

CLI utility to flash the firmware on Z-Wave controllers

WARNING: Flashing the wrong firmware may brick your controller. Use at your own risk!

Usage

You can either execute the current version directly from npm using

npx @zwave-js/flash@latest <port> <filename> [--verbose]

or you can execute the version in the checked out repository by executing

yarn ts packages/flash/src/cli.ts <port> <filename> [--verbose]

The --verbose flag will cause the driver logs to be printed to console.

Changelog

15.6.0 (2025-05-28)

Features

• Add options to set powerlevel within legal limits on region change during startup (#7853)

Bugfixes

• When the serialport closes unexpectedly, try to reopen it first before throwing an error (#7851)
• Work around missing protocol version file in NVM backed up from SDK 7.23.0 and .1 (#7846)
• The default region is no longer considered to be Europe for firmware updates (#7842)