When upgrading to a new version it is always advisable to perform a hard reset, this always applies to any electronic device.
Who on the forum writes that he has freezing problems did not do a hard reset but a soft reset or other methods
Garmin's assistance had advised me to do a hard reset but reading on the forum that the problem was not solved I did nothing .
The other day I did a real hard reset and now all the problems have been solved
I charged the battery 100% Monday 9 and this morning (Tuesday 17) the battery is 12%. I made 6 runs for a total of 8 hours with GPS, cardio strap and footpod.
Instructions in Italian by Garmin support
Da strumento spento, tenere premuti i tasti Start/Stop + Back/Lap.
Accendere il dispositivo con il tasto Power e poi rilasciarlo mantenendo premuti Start/Stop + Back/Lap.
Rilasciare Start/Stop un volta udito il primo bip, rilasciare in seguito Back/Lap al secondo bip.
A questo punto il prodotto verrà riportato alle impostazioni originarie di fabbrica e sarà necessario reimpostare la lingua e successivamente tutti gli altri dati personali
With the instrument switched off, keep the Start / Stop + Back / Lap keys pressed.
Turn on the device with the Power button and then release it while holding Start / Stop + Back / Lap.
Release Start / Stop once you hear the first beep, then release Back / Lap on the second beep.
At this point the product will be reset to the original factory settings and it will be necessary to reset the language and subsequently all other personal data