Trouble after update
My watch will not turn on after I updated it last night. The Apple logo keeps flashing during charging, but it never turns on. What should I do?
Apple Watch Series 4, watchOS 6
If this link doesn't help:
How to restart your Apple Watch - Apple Support
then make an appointment at the Genius Bar in an Apple Store near you or contact Apple support. Either way:
Genius Bar Reservation and Apple Support Options - Apple
or see the reply to:
what do I do when my phone keeps flashing… - Apple Community