Blurry screen left top part of screen

Hi Et5360,

Thank you for participating in the Apple Support Communities. It looks like you came from the following support article: Apple security updates - Apple Support

If you are having issues with your display, here are a few steps you can take to help:

1.Restart your iPhone or iPad.

2.Make sure that your screen is clean and free of any debris or water.

3.Disconnect any Lightning or USB-C accessories. If your screen works after removing an accessory, try using a different outlet, cable, or charger.

4.Remove any cases or screen protectors.

Here's a link with those steps for reference: If the screen isn't working on your iPhone or iPad - Apple Support

Have a great day.