I have a Sprint iPhone 6 - I've already checked the ESN on the Sprint website - said it was clear for Boost Mobile, so it directed me to buy the Boost Sim Pack.. Got the pack, put the new Boost Sim into the iPhone and tried to activate.. I keep getting this Activation Error Message: "Activation did not go as smoothly as planned. Please try again to begin Boost services." - All last night and I just tried again a few mins ago. What am I doing wrong? What does this message mean? Please Help - I'm about to go back to Straight Talk as I can't be without a phone due to safety and work issues. Thanks in advance.