Garmin devices come with several data cables and it becomes very messy sometimes. Fortunately, many Garmin Nuvi devices have advanced methods to update it without using any USB cable. So, if you are using any of these Garmin Nuvi device, follow the given steps to update your device without using a USB:
Go to the official web site of Garmin.
Select your device and look for the available updates.
Now, select the update you wish to have in your device.
Next, choose the option Update via satellite and type the serial number of your device.
Wait until you receive an update complete message.
When done, restart your GPS unit and start experiencing the hassle free navigation.