Folks, i got an iphone4 with 4.0.1 that was unlocked using jailbreakme.com. Yesterday, i dropped the phone from maybe 1 feet, it stopped working. Since then im not getting any service at all, its an att phone and i cut my tmobile sim card to use it on tmobile, it was working fine before the drop and now its not working at all? I looked in cydia and somehow the ultrasn0w disappeared after the drop, so redownloaded it and still no service. I was thinking of re running the jailbreakme.com. Is it ok if i should do it or not? This thing is pissing me off

Did you backup your SHSH for 4.0.1? The safest way to rejailbreak is to restore using cached shsh and then rejailbreak

I think u have a hardware problem. Either the drop has affected the alignment of the sim socket and contacts or you have damaged the main board of the iPhone. A restore would help diagnose that. You could also use a syslog of a restart to diagnose the problem.

Sounds like you will need to restore. And I don't believe you can rerun jailbreakme.com

You can try, worst case scenario, restore.

thanks guys, i was able to get service without restore. Lets see how long this lasts. thanks