Today I see my Iphone 4 is literally dead, no buttons or functions work at all (No power). If conected to the P.C. I get an apple logo boot loop (apple logo appears for 10 seconds then screen goes black) no battery icon or sound is present either. O.K. if the phone is connected to the wall socket again there is no battery icon or sound, but the phone will boot but very, very slowly, battery level shows the A/C indicator, 100% and green, the phone is not in safe mode but there is no network wifi bluetooth or gps functional, these options are greyed out on the settings, after approximately 5 minutes the phone automatically dies again. I have seen simular problems on this forum and have done a lot of reading here before posting, this is what I have done so far, I can get the phone in DFU mode with I-tunes and have tried to restore but receive a 1611 error, tried cleaning connectors with a q tip from the outside, tried numerous variations to boot the phone including connecting to laptop from boot. I have ordered a new battery and pentalobe screwdriver so I can check the connectors and try a new battery, the phone has never been dropped and is in one of those bulky otterbox defender cases permanatly. I tried to search the symptoms of a dead iphone 4 battery but came up with nothing, What happens to an I-phone when the battery dies? If the battery and hardware review does not work I will be forced to give a jailbreak with Redsnow a shot. Please help, I am sure someone has some useful info on this.