My Apple Watch only shows a lightning bolt and the time
My Apple Watch only shows a lightning bolt and the time What do I do
Question marked as
Top-ranking reply
Red bolt or Green?
Put it on charge for at least 2 hours and force restart it.
The article If your Apple Watch won't charge or it won't turn on - Apple Support including the advice to Force Restart near the end of the article is the best resource for this situation. If you've completed that troubleshooting and the issue is still not resolved, use the link in the article to Contact Support. Or Genius Bar Reservation and Apple Support Options - Apple