Apple Watch Series 12 and Ultra 4 Owners Report Unexpected Reboots
Some new Apple Watch Ultra 4 and Apple Watch Series 12 owners are reporting their devices rebooting unexpectedly, and diagnostic logs suggest the crashes are related to the Apple Neural Engine. Reports have been posted in the MacRumors forums since the new models launched on Friday. Users describe their watches suddenly displaying the Apple logo and restarting while they were interacting with the…
Apple Watch Series 12 and Ultra 4 users are experiencing unexpected reboots, according to reports from MacRumors forums. The issue began after the new models launched on Friday. Users describe their watches abruptly displaying the Apple logo and restarting while in use, even when idle. At least four owners have shared diagnostic logs showing the Apple Neural Engine causing the device to hang for two seconds before a firmware watchdog triggers a kernel panic, forcing a reboot.
The problem persists across watchOS 27.0 build and the day-one update. Despite resetting watches or setting them up anew, some users still face reboots, and one Series 12 owner reported the same issue with a replacement unit. Around 30 owners have posted about the problem on MacRumors, Reddit, and Apple Community Support. Apple has not acknowledged the issue.
Written by urgent.news from MacRumors's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
