Have not used my OS3 in a long time. Does not seem to want to charge? Any suggestions.
Please upgrade the device firmware manually, as the currently running firmware is too old for the auto upgrade.
You can find the manual upgrade instructions in the user manual: https://manuals.sharkrf.com/openspot3/en/troubleshooting.html#i-want-to-manually-upgrade-the-firmware ("I want to manually upgrade the firmware" section)