I am having the same issue: phone toggles vibrate mode on/off like crazy with the slightest touch. At first it did it wehnever I touched the phone, but now this is hapenning while the phone is just on the table...i hate this product...seriously, all it is is a larger screen, piece of crap. I was a loyal apple customer, but seriously, other brands have superior devices. Last apple phone for me. Extremely dissapointed.