I don't know how this has happened but every thing on my iPhone 8 screen has gone oversize tried pinching the screen but nothing happens can't even turn the phone off, any one any ideas how to fix this please.
That's what I asked you to do in Post #4 above, but glad you got it working.Sorry for the delay in answering but none of the suggestions worked, I did however find solution which was as follows, on the left of the iPhone press and release the + button and follow this by pressing and releasing the - button then go to the button the right side of the phone and press and hold until the apple shows on the screen then release this remedy only applies to iPhone 8 and above.