Hey guys I have a quick question about my phone. I bought a ATT GS5 that said factory unlocked off of eBay. I'm wondering if my phone really is unlocked because my Straight Talk Throttle speed sucks haha. So I got a simple mobile Sim card today and I slot it in and it showed me a signal bars all five and I got a voice mail notification. The Sim card isn't activated yet so this means my phone is unlocked right? I just want to make sure before I make the switch tonight. Thanks (*: