My iPhone was recently lagging so i decided to turn it off. When i turn it off, it turns back on right away. I tried to do this for like 3 times and it kept doing the same thing. So i decided to keep it on and let the battery run out. Once it did, I tried to charge it and the apple logo wouldnt come on. Then i tried the home and power button hold, it still didnt work. It wont sync to my itunes anymore. It's just like a paperweight in my room now. HELP PLEASE! =[

Im a legitimate AT&T user so I was wondering if i take it to apple, will they find out that I jailbreaked it? LMK

Your not the first person with this problem its well documented:

Step 1. dock your iphone with your computer
"itunes may or may not recognize it"

Step 2. reset your computer with the iphone still docked
"wait til its booted up still might not recognize"

Step 3. Press your power button on your iphone
"this usually boots it up"

let me know if you need further assistance?