iPhone Apple N Berry - no iOS7 - any alternatives?

[patent10021]

Looking to unlock my iPhone 4 but they aren't working on iOS7 for some reason.

Even if I was on iOS 6 I don:t know if their SIM would work on iPhone 4.

Any alternatives out there?

 

[dhlizard]

There is no sim interposer (regardless of brand/manufacturer) for iPhone 4 if your baseband (modem firmware) is above 4.10.xx (most have 4.12.xx)