Q: Why does my iPad mini have a blue line at the top of the screen after the last update?

Hello luciabott,

Welcome to Apple Support Communities. 

From what I gather, you see a blue line across the top of your iPad mini since updating to the latest version of iOS. If you haven’t already, take a look at the article linked below and try the troubleshooting suggestions that it provides.

Get help with the screen on your iPhone, iPad, or iPod touch - Apple Support

If you see lines, missing sections, discoloration, or poor image quality

 

1. Try to restart your device. If you can't restart, reset your device.
2. If restarting or resetting doesn’t fix the issue, restore your device.
3. If you still see the issue after you restore, contact Apple Support.

Ciao,

-Jason