i have 2 iphone 3Gs 3.1.3 i have the firmware now...
iPhone 3G Custom Firmware 3.1.3 IPSW
Activated (for UnOfficial Carrier Users)
iPhone1_2_3.1.3_7E18_Custom_Restore_Activated.zip. 001
iPhone1_2_3.1.3_7E18_Custom_Restore_Activated.zip. 002
iPhone1_2_3.1.3_7E18_Custom_Restore_Activated.zip. 003
only need open itunes, set DFU mode and restore it?