What is the black gasket of Apple's mobile phone card slot?

The black gasket of Apple's mobile phone card slot is card buffer glue. When the mobile phone is inserted into the card, it is usually inserted on this glue, and the iron sheet is not directly pushed to play a buffering role. Because the sealing ring of the slot is made of rubber, it will age and break easily after a long time. Without this sealing ring, the tightness of the card slot is not so tight, and water vapor and moisture can easily enter the mobile phone, causing oxidation to the mobile phone motherboard. So once the black rubber ring is broken, it is necessary to update the new rubber ring as soon as possible, or directly replace the new card slot.

Waterproof function of Apple mobile phone

Starting from the iPhone6, Apple's design inside the mobile phone also ensures that if it accidentally enters the water, as long as it is picked up and dried immediately, it will generally not have much impact on the mobile phone. Apple iPhone6 has rubber washers around some buttons. IPhone6S goes one step further. What is pulled open with tweezers is suspected to be an adhesive for sealing, which is equivalent to a gasket with certain waterproof effect.

More interestingly, Apple also uses black and white washers to match the iPhone6s with different body colors, such as rose gold color matching with white washers.