I have an older Samsung slider phone, (maybe an Array?) that I purchased second hand. I also have a Dragon Touch phablet. I opted for Koodo prepaid and was told the phone was contract free (has Telus logo on start up and had been used the same way. My sims card fits both, but I would prefer the phone as it is smaller, easier to use. However, my screen says Phone Freeze. SIM unavailable. Contact your service provider. What does this mean and what can I do. I always get great answers and feed back on this sight and I truly appreciate it.