If the screen holder of Apple device is degummed, it may lead to screen failure. Once the screen holder of our mobile phone and Apple device is degummed, it is necessary to go to the regular Apple after-sales maintenance service processing and testing department for preliminary processing and maintenance, and it is necessary to replace the accessories in time.
There are several reasons for this.
Such as bumps or cracks caused by freezing and so on.
Therefore, the specific reason needs to be investigated.
There's no way to know for sure by inference alone.