I get how the charge port and buttons are protected, you can’t remove them. But when you change the SIM, there’s just a small strip of soft gooey material near the top of the tray. It looks like it can’t possibly protect against the force of dunking the entire thing underwater. Is it the weakest part of the waterproofing, does it wear out?
In: Technology
I haven’t looked at the SIM tray, but seals work by using the force of the liquid pushing them into their seats to increase their ability to cover the opening. Most seals will still work even with some damage, but will often fail if the either of the surfaces they come in contact with are warped or cracked. Pinching or sitting on the seal itself should have no effect.
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If it’s designed correctly, it forms a reasonable seal. And if immersed in water, the pressure of the water should slightly deform the rubber gasket to make an even better seal.
They don’t exactly “wear out” like some things do. But with age, rubber tends to lose its elasticity and the seal quality will degrade. Just deforming it mechanically a bit shouldn’t hurt it, unless you pinch it so hard that it permanently has a crease or other damage.
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