i'm not really a techy person and most likely, i'm just new to these kind of software, i just want to know let say i'm playing this game, specifically subway surfers, then sometimes it lags..and then there's this option that you can get this stuff by watching an ad, then when you click it, the game crash unlike before. Somethhing like that. I just want to know wether that kind of problem is a hardware or software or just the app itself? i already tried a hard reset (home and lock button) and its sort of the same. The lag though doesnt really appear as much, just a bit of dropped frames. Also there is an app wherein i experienced a total lag on the assistive touch..like the move becomes crunchy and all..idk I just want to make sure so that i could have it replaced as early as now while its still under warranty. I hope someone help or get what i'm saying. thanks!