Apple Watch has a red lightening bolt and time and won’t reset?
Apple Watch is not responding, it shows a red lightening bolt and the time. Won’t power down or let me do a hard reset?
iPhone XS
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When the Apple Watch displays a red lightning bolt, battery life is critically low. The watch has automatically entered Power Reserve mode, and the device can only show the time. The only way to remove the red lightning bolt and leave Power Reserve mode is to charge the Apple Watch.