It is recommended that users downgrade the iOS 15.7.1 RC version to the official version iOS 15.7 to solve the problem of Face ID not working properly.

According to MacRumors, Apple released iOS 16.1RC and iOS 15.7.1RC this week. Some users reported on Reddit and Twitter that iOS 15.7.1RC version seems to affect the normal working of Face ID on some iPhones. Affected devices include at least the iPhone 12 Pro and iPhone 13 Pro, but other models may also be affected

When affected users try to reset Face ID on their iPhone, they receive an error It prompts "Face ID is not available", causing the facial recognition function to be unavailable. It's unclear what the cause of the problem is or whether Apple is aware of it. Typically, RC versions update with the same content as the official iOS versions. However, Apple may launch a new version candidate before releasing iOS 15.7.1 to fix related issues

Some users are not interested in upgrading to iOS 16, so Apple solves this in iOS 15.7.1 The question is very important. There are also some devices that support iOS 15 but not iOS 16, including iPhone 6s, iPhone 6s Plus, first-generation iPhone SE, seventh-generation iPod touch, iPhone 7 and iPhone 7 Plus

If you are upgrading After reaching the iOS 15.7.1RC version, it was found that Face ID cannot be used normally. It is recommended to downgrade back to the official version of iOS 15.7 and wait for Apple's official fix before upgrading. For the downgrade of iOS system, it is recommended to use the iOS downgrade function of Apple mobile phone repair tool to keep the data downgraded. At the same time, this tool also supports repairing 150 common iOS system bugs

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