Can not complete firmware install/jailbreak
I'm working on one of my friends Iphone 3GS (old bootrom) was jailbroken to 3.0 and was trying to upgrdae it to 3.1.2. Problem is I can not get itunes to complete the firmware install. I've actually been able to install blackra1n. Problem is the phone can not get service, the wifi and bluetooth are greyed out, no IMEI, no ICCID and no Modem Firware show up in the about section. I know when they originally jailbroke the phone they did not store the SHSH file. Would that be the problem and if so is there any way around it? I'm confused because I used the same firmware on my iPhone and had no problems. Any help would be greatly appreciated. Thanks!