Frozen screen iPhone 11

Try the following:

Click ▶︎ Update your iPhone. 📲

If that didn’t help, then try a Hard Reset:

1. Press volume up (quickly)
2. Press volume down (quickly)
3. Press and hold the power button until the Apple logo ( ) appears

If that didn’t work, it could be a hardware issue. ⚠️

Get expert service and support at the Genius Bar.

• Call Apple Support at 1-800-APLCARE.
• International Support.
• Contact Apple Support.
• Chat using Messages.

If the screen is frozen, see this. If your iPhone won't turn on or is frozen - Apple Support