Hello! Well, I have an iPhone 5s locked to AT&T and was using it with a R-Sim. I updated my phone to 7.1.2 and now I cant pass the activation screen, the one that say the phone has and invalid SIM. So i purchase on ebay the code to unlock it by IMEI. My question is, if my phone isnt actived yet, it can be unlocked? I mean the service of unlocking need the iPhone to be activated while the unlock is in the process? Thanks in advance! PD: I dont have an AT&T SIM to activate it.