My 4s just sucks with iOS 8. Everything is slow and the texting is very buggy. The most annoying bug is when I flip it horizontally to type. Only the text box moves down, the rest of the screen stays portrait. WTF? I have a file I've downloaded called iPhone4,1_6.0.1_10A523_Restore.ipsw Can I slap this file back into the phone via iTunes successfully, or will it brick my phone? Thanks!