All data ( two years of it) disappeared when I upgraded to new phone
All data ( two years of it) disappeared when I upgraded to new phone
Did you "Sign In" to Garmin Connect using the same account that you used before you got the new phone? A very common occurrence when installing Garmin Connect on a new phone is to inadvertently "Create Account" rather than using the same Garmin account already being used.
See support document - Data is Missing from My Garmin Account After Syncing