iPhone 3G 3.1.3 Custom Firmware(unlock by ultrasnow or blacknow)(KING Ayub)

iPhone 3G 3.1.3 Custom Firmware(unlock by ultrasnow or blacknow)(KING Ayub)
(unlock after using blacksn0w)
Includes:
+ Hacktivation included
+ Cydia pre-installed
+ OpenSSH
+ 512MB System partition
+ Winterboard
+ Stock Bootlogos
+ Maintains lower baseband (AS LONG AS YOU HAVENT UPGRADED TO AN OFW 3.1.3)
+ Cycorder

How to Install iPhone Custom Firmware 3.1.3
1: Put iPhone in recovery mode.
2: Press the Shift key for Windows or ALT for Mac and click restore and use the custom IPSW.
3: It will start restoring your iPhone which may take 10mins and will jailbreak iPhone.