My LGG4's sqaure button doesnt work. Whenever I press it, it just goes to the screen where it should be and then I see one of the apps I have opened, just for a second, and then have it disappear! It doesnt even say no apps open even if I use the clear all button. My phone is not rooted and this started when I installed the. Non root version of greenify and created a shortcut that hibernates everything. How do I fix this?