How to get rid of vertical lines on iPhone 11

Hey there Weo2021,

Do you notice if this appears on all screens and apps on your iPhone? If so, try restarting and check again:

1. Press and hold either volume button and the side button until the power-off slider appears.

2. Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.

3. To turn your device back on, press and hold the side button (on the right side of your iPhone) until you see the Apple logo.

Restart your iPhone - Apple Support

If it persists, Contact Apple Support for service options.

Take care!