iPhone 4 Stuck on DFU mode
Here's what happened. I was charging my phone via USB through my laptop and it suddenly went into white/grey screen with weird screen and so I pressed the HOME + POWER and went into recovery mode (iTUnes + USB logo). I tried to restore it and I keep on getting Error 1600. After a few hours, the screen just went black and whenever I press HOME + POWER button, nothing happens. I went to a repair shop and a guy "shocked" the battery and there it went back to recovery mode. I tried to restore it again on DFU mode and still getting error 1600. If I try it on restore mode, I will get error 21. What I did is I plug in the device, put it on recovery mode and then put it in DFU then restore and still error 1600 ---- googleed and youtubed so,me videos until I saw a video to change the host file and downloaded it and then BOOM --- It was fixed!
While I was fixing my newly repaired iPhone 4 version 5.1 -- all of a sudden it went to restarted then went into recovery mode. After a few hours again, it went to DFU mode and I went to the repair shop to shock the battery but that didn't work until now. I can't get my phone to restore mode even if I press the HOME + POWER button. STUCK on DFU mode.
I have a saved SHSH for 5.0.1 and 5.1 -- so i built a custom firmware with Snowbreeze and iFaith but I keep on getting error 3014, 1600, 1601, 1608 on restoring it. I really don't know what to do from here. Can you please help me?
iPhone 4, iOS 5.1