How to fix the lens of the camera behind Apple's mobile phone when it falls?

Stick it with adhesive, then put it on the radiator or blow it with hot air, and then stick it back to the phone.

If the above methods are ineffective, please go to after-sales maintenance.

Supplement: To prevent the camera lens from falling off, pay attention to the following points:

Because the lens is exposed, you need to pay attention to avoid dust entering. Once the dust enters the camera, the consequences are very serious. Therefore, when you put your mobile phone, don't put a bag with sundries.

Pay attention to waterproof, because the lens is convex, and if it is placed on some objects with water on the surface, it is likely to get water.