● Covered by 1 source · 1 reportMedium impact1 neutral
Apple releases watchOS 27.0.1 to fix random restart bug on Watch Series 12 and Ultra 4
Key points
- watchOS 27.0.1 released by Apple.
- Fixes random restarts on Apple Watch Series 12 and Ultra 4.
- Bug was related to Neural Engine timeout.
- Update available via iPhone Watch app or directly on watch.
watchOS 27.0.1 Addresses Restart Issue
Apple has rolled out watchOS 27.0.1 to resolve a random restarting problem affecting the Apple Watch Series 12 and Ultra 4. This update was released following user reports of unexpected device shutdowns and restarts.
Neural Engine Timeout Identified as Cause
Diagnostic logs from affected devices indicated a 'panic-full' file entry referring to a timeout in the Neural Engine. The Neural Engine is a hardware component within the watch responsible for processing AI and security-related tasks. A timeout in this component caused the watches to restart automatically.
Update Availability and Installation
Users can install watchOS 27.0.1 through the Watch app on their iPhone by navigating to General and then Software Update. Alternatively, the update can be installed directly on the Apple Watch by going to Settings, General, and then Software Update. Apple's support page for watchOS 27.0.1 mentions multiple bug fixes, though the primary focus is on the restart issue for the Series 12 and Ultra 4.
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Reporting from
Apple released watchOS 27.0.1 to address a bug causing random restarts on the Apple Watch Series 12 and Ultra 4. The issue was linked to a Neural Engine timeout, and the update provides a fix for affected users.