I reieved my new GPS unit yesterday and have been trying to update it using ifly connect. I've tried doing a software update first, then tried downloading and installing all updates via sd card. Each time, the "Checking SD card" message comes up, and then the message "Unable to access the ifly servers. Please confirm you are properly attached to the internet, or try again later." It is my understanding that the 520 does not have wifi capabilities, and can only be updated by sd card. Could really use some help here.