You can update your device’s software and map updates wirelessly. To protect your device’s security, and to accelerate the speed of downloads, we recommend using an unrestricted (i.e., personal, private) wireless network.
NOTE: If you do not have access to a wireless network, or if your wireless network is slow, you can update applicable items on your device using your computer’s internet connection via a wired USB connection. Map downloads are only available via Wi-Fi.