MagSafe problem iPhone 12 iOS 16.0.3

Hi carl-austin,

Try the steps here: If your iPhone or iPod touch won't charge - Apple Support

Once you click and open the link, please read through and complete the steps in the section titled "If your device charges slowly or won’t charge."

Follow these steps and try again after each:

1) Check your charging cable and USB adapter for signs of damage, like breakage or bent prongs. Don't use damaged accessories.

2) Use a wall power outlet and check for firm connections between your charging cable, USB wall adapter, and wall outlet or AC power cable, or try a different outlet. 

3) Remove any debris from the charging port on the bottom of your device, then firmly plug your charging cable into your device. If the charging port is damaged, your device probably needs service.

4) Let your device charge for a half hour.

5) If your device is still unresponsive, force restart your device: 

*iPhone 8 or later and iPhone SE (2nd generation): Press and quickly release the volume up button. Press and quickly release the volume down button. Press and hold the side button until the Apple logo appears.

*iPhone 7, iPhone 7 Plus, and iPod touch (7th generation): Press and hold both the side (or top) button and the volume down button until the Apple logo appears. 

*iPhone 6s or earlier, iPhone SE (1st generation), and iPod touch (6th generation) or earlier: Press and hold both the side (or top) button and the Home button until the Apple logo appears.

6) Let your device charge for another half hour.

We recommend the steps above because they will show you what to do if you're having trouble getting your device to charge.

If you’re still experiencing the same issue, then check out the article here: How to use your MagSafe Charger with iPhone 13 models and iPhone 12 models - Apple Support

Reach out to the community for more help if your issue has not been resolved, and we will continue from there.

Thanks for using the Apple Support Communities.

Cheers!

What are you using as a power source for the MagSafe charger? And is it an Apple MagSafe charger or aftermarket?