Firmware Release notes
Firmware changelog of the sensor used in the Wireless Zigbee system
Older firmware versions (1.X.X) had to be downloaded and stored in the smartphone’s memory.
Starting from version 2.X.X (June 2022), the firmware is available directly from the Glamox Wireless ZigBee mobile app.
2.X.X firmware works only with the 1.10 Glamox Wireless ZigBee mobile app version (released on 23.06.2022) or later.
You can update your old firmware directly to the latest version. You don't have to go through every intermediate version.