Apple Watch powers on and shows logo but then goes to a black screen
I power on my apple watch series3 the apple logo appears but then goes off nothing else happens I have tried to force restart it but it doesn’t seem to work any ideas
Try this first, then if no better, or it will not do the reset, have it repaired (actually better to buy a new one).
Wipe Watch and set up again
Put Apple Watch on its charger.
Press and hold the side button until you see the screen with the power button in the upper-right corner, then let go of the side button. If your Apple Watch has an earlier version of watchOS, you see the Power Off slider instead of the power button.
Press and hold the Digital Crown until you see the red Reset button.
Tap Reset, then tap Reset again to confirm.
After Apple Watch unpairs completely, you can pair again. Remember that you'll need the Apple ID and password that were used to set up the watch. Set up as New Watch.