iPhone 1.1.4 upgrade hasn’t been a trouble-free update for many. There really is no good reason to update to 1.1.4 at this time, probably SDK might need it in the future. So, you accidentally upgraded to 1.1.4, now what? How do we get back to a much better firmware?
Download 1.1.3 / 1.1.2 firmwares from this link.
I have followed these steps on a 4.6 BL iPhone as well as 3.6 BL iPhone. If you have used IPSF like unlock before (Gunlokc/iJailbreak/ZiPhone), then you can still follow these steps.

Your 1.1.4 …

Once iNdependence v 1.4b5 was released with 1.1.4 support, I went ahead and updated the iPhone (16GB 1.1.3 OTB unlocked using iJailbreak)from 1.1.2 to 1.1.4 via iTunes which gave me an error. I repeated the same and the update went fine and now I have version 1.1.4 installed on the iPhone.
I then fired iNdependence trying to jailbreak/activate my iPhone. I hit the Activate button and it didn’t respond in a timely fashion showing me the Jailbreak screen. I then hit the Jailbreak tab to Jailbreak the iPhone which gave me …

This is by far the best, most efficient unlock EVER! Buy a phone from an Apple store, download iJailbreak on any Mac in the Apple store and unlock it then and there!! It can never get better and easier! I tried this unlock on different bootloaders and basebands ( 4.6 BL. 3.9 BL, 04_01_13G, 04_02_13G and 04_03_13G basebands).

The best thing being – it brought a no-wifi, no-radio DEAD bricked iPhone to back in life in about 2.5 minutes!! I spent 10 hours on the dead iPhone with no success until …