iOS 11.3 Will Support Life-Saving Feature That Sends an iPhone's Precise Location to Responders in Emergencies - MacRumors
Apple stops signing iOS 11.3 following the release of iOS 11.3.1 - 9to5Mac
iOS 11 has arrived -- here's how to update your iPhone or iPad - CNET
iOS 11.3.1升級正式推出修正iPhone用三廠屏幕「變磚」死機問題
5 Reasons We Need an iOS 11.3.1 Update
Question] Is it safe to connect an iPhone 6 Plus on iOS 8.3 to the internet? I've heard of apple bricking or deactivating iOS 9 iPhone 6s' when connected to the internet