Hello! I really need to get rid of the "This Sim card is from an Unknown source" error on my Verizon Galaxy S4. I am abroad, and Verizon lied to me about the phone being unlocked for use with an international SIM card, so I rooted it and I am trying to unlock it myself. I installed CWM and I have SuperSU installed, but I don't know how to actually unlock the device, and to get rid of the stupid "Non verizon sim" message so that I can use my phone while I am abroad. Any help would be much appreciated, thank you!