So I brought a second hand (jalbroken) iPhone 3 today. Stupidly (now) reset all the settings on it not knowing that it would freeze on the apple logo ever since! My PC won't recognise the device/iTunes wont either. It wont turn off, only when the battery has died and it's completely frozen! Shall I just throw the thing? It's doing my head in! Cant do a manual reset (holding both power / home buttons)... Any help at all?!!! PLEASE! 
