Magellan Roadmate 5220 GPS connected to laptop as fat32, Content Manager does not see the device

Steps to Update Magellan Roadmate 1200 GPS :
1. Go to official website of Magellan and choose "support" option. After selecting the support you will find the various options. You have to select "Manual and Software Update".
2. Choose your product from the drop down the menu and select Roadmate series. A pop up will display on the screen and choose I want to download this update.
3. Hit the "Download Now" button.
4. Checkout every connection under "Redesigns and Maps" to buy Latest Magellan Roadmate Gps Update . "Add the lives maps which are available to your Cart," at the time of proceeding to the "Continue to Checkout."
After completing the process you will get an email from the Magellan. It will later to download the Update on the SD Card itself.

How To Install Free Software Maps Using Content Manager

Magellan® RoadMate® 1700 Software Update - Installation Instructions

To install this software update you will need to install Content Manager.
Content Manager is a computer application that syncs with your Magellan GPS navigator to deliver new map updates and product information. To update your GPS download content manager and follow the steps below.

1. Download and install Content Manager on your Computer
2. Turn on your GPS. Wait for the menu to appear and connect to your Computer using the USB cable provided.
3. Content manager will automatically prompt you about the update. If Content Manager does not prompt you, right click on the Content Manager icon located in the system tray (on a Windows based pc) or click on the Content Manager icon in the Menu Bar (on a Mac) and select "Check for updates now". Content Manager will inform you if you have the latest software already installed.

NOTE: System tray is in the lower right hand corner of your computer monitor screen near the clock on a Windows based PC. The Menu Bar is the upper right hand corner of the computer monitor on a Mac

Magellan 5220-LM Manuals, Support and Troubleshooting - RoadMate http://www.retrevo.com/support/Magellan-5220-LM-GPS-manual/id/24201bh339/t/2/

I had exact same 'Magellan 5045 frozen' problem. Here is how I fixed it. Go to www.magellangps.com/contentmanager. Download and install Magellan Content Manager. Plug in your GPS. If content manager does not activate automatically, start it manually, like any other windows program or by right clicking on its icon. You will be asked to register your device and its serial number, etc.
After registering, if Content Manager fails to take you directly to the download location for your device, along the top of the Magellan web pages you will see a set of tabs, one of those is 'Support'. This is a pull-down menu. Select Manuals and Software update. This then takes you to their 'Support' web page. On the support web page, click on the 'Manuals and Software Downloads' button. This will take you to a page where you will be asked to select from four Download Categories. For the roadmate 5045 and similar gps intended to be used in an auto, select 'Magellan Vehicle Navigation'. This will take you to another page where you will have to select from three product series. For the 5045 series, select 'Roadmate Series'. This is another pulldown where you will have to select your product number, e.g., Roadmate 5045. This will finally take you to a page where you can select software and map updates. You will have to connect your Roadmate gps to your computer via USB and you will have to register. It is confusing because you will get incorrect and irrelevant statements like your device failed to register. It is somewhat quirky but if you follow the instructions and you have a wideband cable or FIOS internet connection, the upgrade to the software and the maps takes about 30 minutes. Do unplug your RoadMate from the USB unless asked to do so by the Content Manager program. After the software and maps update, the Roadmate 5045 worked like better than new for me.

Have you tried updating the software on your device.
Go to Magellan.com and download the Magellan Content Manger:
http://www.magellangps.com/products/map.asp?tab=0&PRODID=2216
Once you've installed Content Manger onto your PC, connect your device to your PC using the USB cord. The Content Manager will allow you to update your 1340 with the latest software and updates which 'should' fix the problem that you're having with your unit.