HT204510: Restart your Apple Watch
Learn about Restart your Apple Watch
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All replies
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Helpful answers
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Jun 9, 2016 8:19 PM in response to saiteacherby Carolyn Samit,Hi...
"Apple Watch is designed to work best in ambient temperatures between 32° to 95° F (0° and 35° C), and should be stored between ambient temperatures of -4° and 113° F (-20° and 45° C).
For example, Apple Watch shouldn’t sit unattended in direct sun for long periods, undergo dramatic changes in temperature or humidity, or be left in a car on hot days. Storing and using your device outside of the recommended temperature range could shorten its battery life or cause other damage."
Above information from here > https://support.apple.com/en-us/HT204508
Allow the watch to restore to room temperature then try charging it then see if it will restart.
If not, try here >> If your Apple Watch doesn't respond or won't turn on
If you see the Apple logo or a red exclamation mark during startup, and your Apple Watch appears to restart or never fully starts up, contact Apple Support.
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Jun 9, 2016 8:18 PM in response to saiteacherby stevejobsfan0123,Have you tried pressing both the digital crown and side button for 10-15 seconds, until the Apple boot logo appears? This is a force restart.