Hey! I recently upgraded my iPhone 3G 3.1.2 jailbreaked with blackra1n to 3.1.3 from iPod, iPhone and iPad Firmware Download. And now my iphone is blocked, i can only make emergency calls...
I've tried to reinstall the firmware 3.1.3 jailbreaked with snowbreeze, but when i restore some error 1600 shows up...
Any solution?? Plz i'm going crazy!!!

Originally Posted by akpg17

Hey! I recently upgraded my iPhone 3G 3.1.2 jailbreaked with blackra1n to 3.1.3 from iPod, iPhone and iPad Firmware Download. And now my iphone is blocked, i can only make emergency calls...
I've tried to reinstall the firmware 3.1.3 jailbreaked with snowbreeze, but when i restore some error 1600 shows up...
Any solution?? Plz i'm going crazy!!!

Put the iPhone into DFU mode - restore original iOS 3.1.3 - download link here http://www.hackint0sh.org/f127/22056.htm#post333896 then jailbreak with redsn0w

iClarified - iPhone - How to Jailbreak Your iPhone 3G on OS 3.1.2, 3.1.3 Using RedSn0w (Windows)
Finally unlock with ultrasn0w 0.9.3 from Cydia.

im having a very similar problem (highlighted here: http://www.hackint0sh.org/f201/152848.htm)

I tried using redsn0w to jailbreak, but when I choose my 3.1.3 ipsw from the iphone software updates folder redsn0w tells me its "unable to recognize specified ipsw"...any advice?

Originally Posted by Tizzfizz10

im having a very similar problem (highlighted here: http://www.hackint0sh.org/f201/152848.htm)

I tried using redsn0w to jailbreak, but when I choose my 3.1.3 ipsw from the iphone software updates folder redsn0w tells me its "unable to recognize specified ipsw"...any advice?

I have answered your question in other thread. Be sure to use redsn0w 0.9.2 or if you can't find that 0.9.4