then holding the side button， then the volume down button， but won't charge even though I left it plugged in all night. It's frozen on the screen with this message and low battery. Phone is 1 month old， but the phone won't open. I also tried removing the device from my "Find my" list. Is there another way to force restart? Any other ideas? ， iPhone 13. I tried pressing the volume up button， My phone displays the message "iPhone is findable"，。