Apple Watch series 3
My Apple Watch series 3 is not turning on just a black screen and isn’t charging and I don’t know what to do?
Apple Watch Series 3, watchOS 7
Question marked as
If you tried the troubleshooting mentioned in this article without getting the watch to charge again, you should get it serviced:
If your Apple Watch won't charge or it won't turn on - Apple Support
More Information about your service options in this article: