Please Help. 3G showing no sim

[neallieben]

I unlocked my 3G iphone through yellowsnow, and only 1 service provider sim worked, the rest showed no service.
I then was able to use this sim for approx. 4 days after that it fails to work, now showing no service.

Please advise anyone..........

[cpjr]

I would try going through the steps again.

Uninstall YellowSn0w and reboot.

Then, insert the simcard you wanna use.....install YellowSn0w, flip through "airplane" mode, turn 3g off....and reboot. Then give it a few minutes.

There is a good guide in our guides section.

[neallieben]

Thanks will give it a try and lt you know

Its seems i have been suckered as i have bought a blacklisted iphone.
Is there anyway of getting around the blacklisting, or can i throw this phone away?

[jpadock]

Maybe you can try a hardware unlock like this one Unlock iPhone 3G - Instant Unlock any iPhone. Incl 2.2.1

I am not sure it will help but if everything else fails you can try the hardware unlock.
Good luck!