So after the update, I removed the APN profile I downloaded and installed from unlock it.co.nz site and reset network settings. After the reboot all of a sudden I noticed that even without an APN settings setup or installed, I get a cellular signal! I noticed also the carrier symbol Home has changed to TFW. I got LTE, iMessage, MMS and even FaceTime! I still don't have visual voicemail though but then I've been having trouble with it since the first iOS 7 update. I got a iPhone 5s Verizon using the new LTE Straight Talk sim. How could this be?