I have an iPhone xr that writes support.apple.com/iphone/restore at startup, I warn you in advance, a quick press of the volume up and then down and then the power button, does not help, the method of restoring and updating in iTunes also does not work, I would like to mention that pressing the power button when the phone is completely turned off does not give a result, does nothing, please help.
Everything that you are telling us indicates that there has been a hardware failure on the iPhone. Resets, restores, etc are not going to help.
Make an appointment at the Apple Store or take the phone to an authorized Apple service shop to them check and test the phone and go over your options with you.
You can find a list of authorized Apple service shops in your area using this link:
If it turns out the phone will require a new motherboard......which is a very real possibility......that is an expensive repair and the money might be better spent towards a new phone.
Everything that you are telling us indicates that there has been a hardware failure on the iPhone. Resets, restores, etc are not going to help.
Make an appointment at the Apple Store or take the phone to an authorized Apple service shop to them check and test the phone and go over your options with you.
You can find a list of authorized Apple service shops in your area using this link:
If it turns out the phone will require a new motherboard......which is a very real possibility......that is an expensive repair and the money might be better spent towards a new phone.
Iphone XR itself boots into the recovery menu
