I am a Wind mobile user and I got my Lumia 920 from Rogers yesterday. Without unlock my phone, I plugged in my Wind sim card and just want to experience the OS and play around with it. I did taking photos, browsing, swiping down, doing some words input and the phone just died(freeze). I thought it because I was using a wrong sim card in a locked phone, so I took my sim card out. Somehow when I turned the screen on and It just froze and restarted by itself. Should I just return and get a replace or it still because the phone is unlocked and just don't let me use it???

This problem just drove me crazy. Is there anyone seen the similar problem? Thanks and expecting your advice! :)