FW 5.30 brakes wrist HR. At the beginning the values start to show like it should but after a while the values freezes to some random level.
Me too. There is a similar thread on FR935 forum which is not surprising as they apparently share the same software.
Some people said resetting the activity data fields might help. Will try that as I don't want to do a full reset. I mostly use the strap anyway now that it's getting colder again.