Know how you can use the "Create from an image" to make your puzzle? People sometimes use it just to make a pretty picture, but don't check the logic. Others use it and just save it as is without even checking if it looks good, or are too lazy to try a different threshold or the like. For this puzzle, I decided to mesh in both. This puzzle was a picture of a guy smashing a screen, but you wouldn't guess that based on this puzzle alone. Also, you can solve most of it logically, but the ending is a bit of brute forcing.

The picture I used is here, but shrunk to 25x16 pixels:
http://successyeti.com/wp-content/uploads/2015/06/TSBB_Frustration-440x293.jpg

Hints:
White Square: C15R11