Well : it’s quite very very strange…
At wake up this morning it’s was still displaying the same message error.
I have tried a « desperate » soft reset…
Then it has switched to « improving you watch… »
Then error message with fw, the « decide has woke up after an error »
…then watch turned ON…without all parameters ok, personnal sport modes…only sleep and vfc history seems to have been reseted, and hr zones have been also reseted (and running specific zones was pinned again). Seems that 2.44.46 has been reinstalled automatically
Very very strange ….