Humidity sensor stop showing correct value

Noticed that tag humidity just showed 0%…as firmware was old, updated it to latest one 2.5.9
Now humidity keeps showing about 163%

Tag is not even one battery lifetime old.

Also tried to change battery as voltage was showing about 2,1v…but issue remained with new battery.

Too bad if these don’t really last more than few years.

Sorry for the troubles, replayed in Facebook chat. We will change device to a new and see in our lab what is the issue with this broken device.