{"id":780458,"date":"2026-09-23T23:44:08","date_gmt":"2026-09-23T23:44:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/780458\/"},"modified":"2026-09-23T23:44:08","modified_gmt":"2026-09-23T23:44:08","slug":"watchos-27-0-1-fixes-the-apple-watch-restart-bug-in-new-devices","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/780458\/","title":{"rendered":"watchOS 27.0.1 fixes the Apple Watch restart bug in new devices"},"content":{"rendered":"<p class=\"article-lede\">Apple&#8217;s <a href=\"https:\/\/appleinsider.com\/inside\/watchos-27\" title=\"watchOS 27\" data-kpt=\"1\" rel=\"nofollow noopener\" target=\"_blank\">watchOS 27.0.1<\/a> update has arrived with a fix that prevents Apple Watch Ultra 4 and Apple Watch Series 12 models from randomly restarting.&#13;<\/p>\n<p>On Wednesday, just over a week after watchOS 27.0 <a href=\"https:\/\/appleinsider.com\/articles\/26\/09\/14\/apple-brings-smarter-siri-and-better-health-tracking-to-apple-watch-in-watchos-27\" rel=\"nofollow noopener\" target=\"_blank\">reached<\/a> the general public, Apple deployed the watchOS 27.0.1 update. The software addresses a bug <a href=\"https:\/\/appleinsider.com\/articles\/26\/09\/21\/neural-engine-timeouts-face-id-panics-hit-apples-newest-devices\" rel=\"nofollow noopener\" target=\"_blank\">that caused<\/a> the Apple Watch Series 12 and <a href=\"https:\/\/appleinsider.com\/inside\/apple-watch-ultra\" title=\"Apple Watch Ultra\" data-kpt=\"1\" rel=\"nofollow noopener\" target=\"_blank\">Apple Watch Ultra 4<\/a> to restart unexpectedly.&#13;<\/p>\n<p>Those who encountered the now-resolved issue said their <a href=\"https:\/\/appleinsider.com\/inside\/apple-watch\" title=\"Apple Watch\" data-kpt=\"1\" rel=\"nofollow noopener\" target=\"_blank\">Apple Watch<\/a> rebooted while editing watch faces, making calls, using <a href=\"https:\/\/appleinsider.com\/inside\/siri\" title=\"Siri\" data-kpt=\"1\" rel=\"nofollow noopener\" target=\"_blank\">Siri<\/a> AI, opening <a href=\"https:\/\/appleinsider.com\/inside\/apple-maps\" title=\"Apple Maps\" data-kpt=\"1\" rel=\"nofollow noopener\" target=\"_blank\">Apple Maps<\/a> or the <a href=\"https:\/\/appleinsider.com\/inside\/app-store\" title=\"App Store\" data-kpt=\"1\" rel=\"nofollow noopener\" target=\"_blank\">App Store<\/a>, and recording workouts. Some Apple Watch owners have even said their devices restarted when idle.&#13;<\/p>\n<p>As for what caused the reboot bug on watchOS 27.0, an Apple forums <a href=\"https:\/\/discussions.apple.com\/thread\/256360354\" rel=\"nofollow noopener\" target=\"_blank\">post<\/a> outlined a Neural Engine timeout on an affected Apple Watch model. In short, a Neural Engine command waited 2,020 milliseconds, exceeding a 2,000-millisecond limit, after which the device rebooted.&#13;<\/p>\n<p>While the watchOS 27.0.1 update addressed these spontaneous reboots, Apple did not disclose what caused them.&#13;<\/p>\n<p>The company&#8217;s <a href=\"https:\/\/support.apple.com\/en-us\/100100\" rel=\"nofollow noopener\" target=\"_blank\">website<\/a> says there are no CVE (Common Vulnerabilities and Exposures) entries associated with watchOS 27.0.1. This suggests the software likely doesn&#8217;t include major security fixes and that this release did not patch any significant vulnerabilities.&#13;<\/p>\n<p>The same page also outlines that watchOS 27.0.1 is available only for Apple Watch Ultra 4 and Apple Watch Series 12. In short, it&#8217;s a bug-fix update for the 2026 Apple Watch lineup.&#13;<\/p>\n<p>How to update to watchOS 27.0.1<br \/>\nEnsure the Apple Watch is charged to at least 50% and connected to Wi-FiOn your Apple Watch, open the Settings appTap GeneralTap Software UpdateTap Install if a software update is availableFollow the on-screen instructions<br \/>\nHow to update to watchOS 27.0.1 via iPhone<br \/>\nEnsure your watch is charged to 50% and connected to Wi-FiOn your <a href=\"https:\/\/appleinsider.com\/inside\/iphone\" title=\"iPhone\" data-kpt=\"1\" rel=\"nofollow noopener\" target=\"_blank\">iPhone<\/a>, open the Apple Watch appTap GeneralTap Software UpdateDownload the update if it is availableFollow the on-screen instructions<\/p>\n","protected":false},"excerpt":{"rendered":"Apple&#8217;s watchOS 27.0.1 update has arrived with a fix that prevents Apple Watch Ultra 4 and Apple Watch&hellip;\n","protected":false},"author":2,"featured_media":780459,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[786,86,56,54,55],"class_list":["post-780458","post","type-post","status-publish","format-standard","has-post-thumbnail","category-gadgets","tag-gadgets","tag-technology","tag-uk","tag-united-kingdom","tag-unitedkingdom"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/780458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=780458"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/780458\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/780459"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=780458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=780458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=780458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}