Iphone 12 wont charge or turn on

Press and hold both the side button and the volume down button until you see the Apple logo. If your phone doesn't turn on, follow these steps to check your hardware and charge your phone. You might need to charge for up to an hour. If your phone still doesn't turn on, contact Apple Support.

If your iPhone 12 remains unresponsive and stuck on a black screen after a few forced restart attempts, what you need to do next is charge it and do the forced restart while it's connected to the charger. Here's how: Plug the charger to a working wall outlet and connect your iPhone to it using the original cable.

If the iPhone still doesn't turn on, it may have a dead battery or a bad charging port. Replace the battery with a partially charged one and see if the phone will turn on. If not, there may be a power button or logic board issue. If the phone does turn on, plug it in and see if the charging indication comes on.