Rsim9 Pro issues can't select carrier. How to reset Rsim9 Pro?

I'm trying to use Rsim9 pro to unlock my iphone 5 but i picked the wrong carrier. It won't take me back to the "select carrier" page. How do I reset the rsim9 Pro so I can see this page again?

Take out the R-SIM from the phone and reset the phone fully. Once done, put the R-SIM back in and try again. If you still see the problem persist, get the phone factory unlocked for peace of mind and it's a permanent thing. If you need help with getting the phone factory unlocked, mail me for references.

Just use another sim-card