MagSafe battery doesn't charge after firmware update
I tried to update the firmware of my MagSafe battery, so I plugged it into my iPad air 4 with a Type C- lighting cable(made by Apple), after about half an hour, I found it couldn't be charged and no signal lights at all, there will be an animation on my iPhone 13 pro when I tag it on, but no any power data and no charging.
Any idea?
iPhone 13 Pro