Hello my iPhone XR is frozen on screen
X-ray on frozen screen
iPhone XR, iOS 15
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Phone frozen or will not turn on, logo Bootloop or Stuck on apple logo
Do this sequence which starts with Forced Restart then goes onto Recovery Mode.
Click hereIf your iPhone won't turn on or is frozen – Apple Support (UK)
or watch this video which has the same actions
Click herehttps://youtu.be/2CRilTPouRU?t=97
Try to use the Update option. There is no guarantee you can save any data since your last backup if you need to use the Restore option.