I know it sounds like a silly question but I bought a case and mirror screen protector for my 520 and they both suck. Lol. The case is a little too big and the mirror screen protector makes my phone act funny.. Like when I call someone.. The screen goes black and when I press the power button during the call.. The screen comes on and goes right back off.. Silly stuff like that. Can anyone provide me a link specifically for our phones cases and screen protectors?