Try installing/launching iTunes and plugging it in. Assuming iTunes doesn't offer to restore the phone hold the power and home button down for at least 10 seconds then let go of the power button.
If you get the timing right iTunes will offer to do a factory restore for you. It's all about the timing and you'll probably have to go through it several times. If the USB screen comes up on the iPhone that's a good sign !
Jailbreaking a phone isn't something I'd do as "casually" as suggested here... I guess you just found out one of the reasons.
If you get the timing right iTunes will offer to do a factory restore for you. It's all about the timing and you'll probably have to go through it several times. If the USB screen comes up on the iPhone that's a good sign !
Jailbreaking a phone isn't something I'd do as "casually" as suggested here... I guess you just found out one of the reasons.