iphone 3g stuck on boot screen

[prymespyder]

after using sn0wbreeze on my 3g and rebooting, the phone is stuck on the boot screen. i tried soft/hard rebooting and dfu mode, just stays on the boot screen. cant ssh or iphonebrowser or itunes, nothing reconizes it

[iYeow]

Put it in recovery mode and restore to stock firmware. By the way, what firmware are you at ?

You can do this too .
I am going to bed soon so this is the instruction :
Put your iphone into recovery mode : Turn off your iphone, while holding the Home Button, plug your iphone in until Itunes Cable logo comes on.
Now do the Shift key + Restore( Itunes ) to 3.1.3 ipsw which you have to download
Error 1015 may or maynot pop up, if it does, use kick out of recovery from Tiny Umbrella.
Now you are at Emergency Screen.
If you have the official sim, go ahead and put it in.
If you don't have it, then you can go ahead and jailbreak with Redsn0w 0.9.4 but point to 3.1.2
It will hactivate and jailbreak for you.
That is it.