There are many factors that cause this phenomenon. General users modify the application of the system, which leads to the conflict between the system and the application and produces white apples. Common software formats in iOS devices are PXl, iPA, DEB, etc. Among them, iPA is the official software format designated by Apple, and its stability and security are guaranteed. Generally speaking, installing iPA files will not cause white apples.
However, PXL and DEB files need higher system permissions, which will modify the system files and destroy the stability of the system, so the problem of white apples often occurs.
If it is checked, it must be sent to a special repair shop for repair.
If there is no problem, it is recommended to send it to the after-sales center for free testing.