What if the watch won't start up?

1. Check if the watch battery has power and check if it can be turned on after 15 minutes of charging. 

2. If the charging icon is displayed while charging, but the watch can't be turned on by long pressing the power button, the watch is deemed to have a fault. 

3. If the charging icon can't be displayed during charging, and the watch can't be turned on, the watch is deemed to have a fault.