I have blue horizontal and vertical lines across my screen(galaxy note 5) This happened once before and I was told to take it to best buy to refresh it. It worked well for 5 months, but is back.

I would like to find out what is it and how do I get rid of it for good before I need to refresh again.

I read online it could be developer options are on. I discovered how to shut it off, no change!

  • 1
    Can you give us a screenshot?
    – Firelord
    Mar 20, 2016 at 19:41

2 Answers 2


From your description, I believe we are talking about the "Universal Switch" feature.

"A universal switch lets you designate certain touches or gestures to control specific actions on your phone..."

I had get in confidence with this unknown feature when my Samsung S6 was stuck, thus unresponsive, on this mysterious interface control. I finally got out of that hell by a "Power+Vol UP+Vol Down+Home" restart.

more on http://www.samsung.com/uk/accessibility/product_galaxy_universal_switch.html

enter image description here


This is what i did. I kept pressing the home button till my phone came back to life.

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