i got this iphone 4 16gb factory unlocked iphone online and it was stuck on Connect to Itunes screen. after trying to restore it, i get an error and some numbers. after research i was trying to use tiny umbrella to restore it but the phone died and went to the Charging Screen. i charged it overnight and it was still on the Chargin Screen. i cant even get it into DFU mode or even reset it by holding down power button and home button for a few minutes. suggestions?