Anybody having issues with 4.3.3, 04.10..01? This is a new replacement. My previous device was 4.2.1 and ran good. Issues I'm having is when I receive a missed call and hit the phone app it freezes. Also a bit laggy. Battery life doesn't seem as good but I realize battery has to be broken in. I jb with jailbreakme.com. Apple suggested a restore?