Have you run into any issues with the phone activating? I'm not talking about anything UDID related (I'm a registered developer with access to the dev portal), but upon restore it says, 'SIM not valid' when it is? I just renewed my developer account in December and anytime I restore my (Verizon) 5s it fails to (re)activate. I have access to install the beta, but I'm worried it will lock me out of my phone (again). I purchased my iPhone 5s full retail and Verizon/Apple have no idea what's causing this. I'm on my 4th iPhone 5s and am paying to test the beta ($99), but don't want to risk replacing the phone again... TLDR: Anyone on Verizon with a 5s (off contract) running betas (or restoring) getting this issue?