I need a special cover in order to use wirless charging on this right? All because AT&T wants to make money on power mats, I'm furious after spending a ton on wireless chargers for my lumia 920 on AT&T. I hate cases this is stupid. So i'll never get a Qi phone on AT&T again it seems. Someone confirm or deny my dread or if I can use another carriers phone on AT&T's LTE that will have Qi built in.