I have an iphone 5s that is locked to a service called West central wireless. The cell service in my area is dominated by that service. I have already activated the service using an old west central wireless sim card, but when I insert another sim card through my current provider(Straight talk), it immediately restarts the activation screen, until I take out the foreign card. I need to find a way to disable this screen or bypass it, because the problem is that the service works with no issue ( it picks up signal, and can probably make phone calls and texts). I know there must be a way to bypass it, because it seems like a very small issue. I can't unlock it using any unlock service because west central wireless is a small, local service.