Updating Software on the GPSMAP 296, GPSMAP 396, GPSMAP 495, and GPSMAP 496

The GPSMAP® 296, GPSMAP 396, GPSMAP 495, and GPSMAP 496 handheld navigators have two different methods of updating operating software.

Note: All portable software is available free of charge.  Databases (navigation, obstacle, terrain, etc.) require a subscription to download from the flyGarmin.com® website.

The Preferred Method for Downloading Software to your Device is Directly through a Windows PC:

• Connect the device to a USB 2.0 port on your computer via USB. These units require slower data transfer speeds, therefore the newer USB 3.0 ports that newer PCs have will not work. If your computer does not have a USB 2.0 port, you can buy a USB 2.0 adapter at any electronics store and plug in to your computer. The GPSMAP will connect directly to this adapter.

• Also, ensure your Interface settings on the device are set to Garmin Data Transfer. The Transfer Mode should be set to Host. To do this, press the Menu button twice to get to the Main Menu. Scroll down to Setup, then scroll right until you get to Interface (On the GPSMAP 296, the Interface setting is called Comm 1.)

For the GPSMAP 296, follow this link and click on the Unit Software Download.

For the GPSMAP 396, follow this link and click on the Unit Software Download.

For the GPSMAP 495, follow this link and click on the Unit Software Download.

For the GPSMAP 496, follow this link and click on the Unit Software Download.

Once you have Clicked the Download Button,

1. Agree to the terms and proceed to the download page.
2. Click on the blue Download button:
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3. Once downloaded, click on the file and run it. 

You May need to Allow Changes on your Computer to go to the Next Step.

4. Select Next to proceed with the download.
5. Select your GPSMAP from the list of drives, then click Next to start the installation to the device.
6. Once completed, (safely eject) the device from your computer.
7. You may need to power cycle the device
8. The new software version should be on the Splash Screen/Introduction Screen.

The Other Method for Installing Software to your Device is through the Garmin WebUpdater Program.

Important: If this is your first time using a computer with your device, you will need to download and install the WebUpdater program.

1. Connect your GPSMAP 296, GPSMAP 396. GPSMAP 495, or GPSMAP 496 to a USB 2.0 on your computer with the USB cable.
2. Launch the WebUpdater program.
3. When the WebUpdater Wizard window opens, click Next to continue.
4. Once your device is found by the computer, click Next.
5. The following page will display what new software version is available for your device. Click Next to review the software release notes.
6. Once you review the software release notes, click Next to review the software change history.
7. Click Next to review the License Agreement.
8. Check the box to agree to the terms and conditions and click Next to begin the software update installation. Please do not unplug your device from the computer while the update is happening.
9. Once the software update is finished. You can click Next to see if there are additional updates available for your device. You can also click Cancel if you wish to be finished.
10. You may now safely eject (link) your device from the computer.

Note: We strongly recommend using a Windows PC to update GPSMAP devices.  Apple computers have trouble recognizing GPSMAP devices on “El Capitan” and newer operating systems.