If it's completely unresponsive that's not a good sign.... you might try and take it to apple and get them to warranty it. If they can't get it to power up then they'll never know it was modded.
posideon
if the phone doesnt startup, the white dot in the headphone is still white, would they look further or just swap? i am very sleep deprived and leaving out of town later tomorrow. wanted to know my options