Please can you tell me how to jailbreak an iPhone?

Hi. My newly acquired, used iPhone 3Gs does nothing - black screen, no tone or vibration when plugged into a working charger, not recognized with itunes via USB on computer. I have …

I want to project my iPhone screen so my pupils can read some things or watch one of their classmates doing brain training for example.

I was playing with an app (namely "StarDefense"), then after going back to the "Home" screen I suddenly got the "No Service" legend on the menubar and no Wi-Fi either. If I go to " …

I know there are some information on the web but it changes all the time since T-Mobile make changes all the time. I know we can't get 3G with T-Mobile. So, what is the current way …

my phone is stuck on headphone setting, i think, cant hear music unless headphones plugged in, also cant hear people on phone when talking unless i plug in headphones or put on spe …

If I enter an appointment with no time(all day event) in my iPhone, and then sync with outlook 2007 and Vista, the appointment will appear in outlook on the following day. Similarl …

I jailbroke my iphone and downloaded Cydia, installous 3 and macsomovil...when i download any file through installous 3 or macsomovil it says its installed but im not able to view …

When trying to update my iphone it updates but than wont backup so it never really updates it just freezes what should I do?

I've seen arm band types and they look the best. Can anyone give some specific recommendations? Given the weather in Ireland, waterproofness would be a bonus. On amazon I've see …

Why does it take so long to get sound on my preview section for iTunes music and ringtones?