Feb 03, 2021 News
Judging from the current condition, Apple has stopped verifying iOS 14.3, which means that if you have already upgraded, you cannot downgrade from iOS 14.4 to iOS 14.3.
Last week, Apple’s iOS 14.4 was a big blow to the unofficial third-party after-sales service of the iPhone.
After the consumer repairs the camera with parts that have not been officially verified, the system will pop up a warning to the iPhone 12 user that "failed to verify whether the machine has a genuine Apple camera".Parallely Apple shared a supporting document, which emphasizes the importance of repairs and the use of original Apple parts.
In order to let down the consumers from using iPhone camera accessories from non-"genuine" sources, and to seek help from unofficial authorized repair personnel, Apple also listed possible unexpected situations in the document, such as malfunctions, image quality, and even security issues (For example, the scattered parts left behind may cause damage to the battery).
Source: Tech Sina