Why doesn't my IPhone 3Gs (T-mobile) auto-lock itself after I recieve a text or missed call.. It just drains my battery.. I'm very frustarted!! Like when i got it i put some code for it to get MMS.. and installed the profile t-mobile.. and since my phone doesnt automaticaly lock itself. It sits in my pocket at school and i receive a text and it just stays on, which uses the battery a lot!
Please help!! Thank you!!;
Please help!! Thank you!!;