Looks to me to be job for "factory reset",
then check for
firmware updates in the settings menu (connect to external power,
otherwise it will not check for firmware updates) and once the update is
loaded, reboot the system and afterwards check for software updates.
I had two firmware updates in the past 2 month and one directly after I got the device.
It is bit of a mess that the firmware updates are not in the update section of the main software and therefore are hidden.