The Family Handyman on MSN

What are the tiny holes on the sides of my phone for?

On iPhones with physical SIM cards, this slot is on the side. You’ll notice a small panel with a tiny hole in it. If you push ...
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How to lock your SIM on Android

Your phone's SIM card allows the device to make calls, send texts, and connect to the internet. The SIM card provides a phone number that identifies your device on the carrier's network, whether it's ...