How do you update maps on a Magellan 3100 GPS?

To update maps on a Magellan 3100 GPS, first, connect the device to your computer using a USB cable. Then, download and install the Magellan Content Manager software from the Magellan website. Open the software, sign in or create an account, and follow the prompts to check for available map updates. Once you select the updates you want, the software will download and install them to your GPS device.