Hi

I have an Iphone 3G locked to O2 UK and i used it with 2.2 wihout many problems.

I then updated to 2.2.1 from Itunes and it stoped working even after updating the Rebel firmware with all available versions.

Strange is i have 2 different sims one with 1 year and another with 1 week i got from Carrier and they do not work. If i put my wifes Sim card from the same carrier it works, if i put Vodafone or Orange it works..

Why only my SIMS do not work?

Any help would be great...

Thanks

try to turn off 3g setting.