Iphone 4 gevey sim doesn't work?

My gevey sim for my iphone 4 has been working fine for a while, but my phone ran out of battery the other day and I had to reunlock my iphone. The phone is unlocked on iOS 4.3.3 with BB 4.10.01. I turned off 3g and turned on cellular data and data roaming. For some reason, its not working. The steps i did:

1. Inserted gevey w/sim and turned on the iphone.
2. Waited and hit accept and then waited for one bar.
3. Called 122 for 2 seconds and ended it.
4. Turned on airplane mode and waited for the message
5. Turned off airplane mode
6. Waited for signal

For some reasons, after step 6, the phone just says searching… And then says no sim installed. Where the signal should be, it says no sim. What do i do? I tried to reset the settings and network settings and still get this error!

Cust service could fix it

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