These releases are only for Zoolark devices with TG491xxx; for TG473xxx, you do not need update anything since it already has the latest firmware builtin.
FW20221108
Firmware File
Problems Fixed
Can communicate with latest Zookee software
Fix the Battery level display reading (5 bars)
Calibrated oscilloscope reading
Known Issues
Occational crash that you have to hard-reboot (short 5V to GND)