How do I obtain more storage space on my Zumo 550

What I did was got an aftermarket holder for the GPS and plugged it
into a cigarette lighter holder, commonly available at auto parts stores, that I wired to the battery .

is the battery working fine.

Have you tried recalibrating the touchscreen?

To calibrate the screen of the Zumo 550, press and hold the power button for about a minute until the screen calibration appears.

The 3.98 GB you are seeing is probably your total RAM memory and not the storage capacity of the hard drive. RAM memory is completely unrelated to the hard drive capacities.

Double click on the MY COMPUTER icon.

You should then see all the disks and drives that are currently connected to your computer. Your USB hard drive should be one of the drives listed there.

Right click on each of them and select PROPERTIES from the menu shown. This will show you the storage capacity of each drive including how much space is used and how much is free (empty).

Good luck.

Only MP3 FORMAT

HARD DRIVE NEVER SHOWS TOTAL.ITS BECAUSE OF A CONFLICT CONCERNING WHAT SOME SAY IS A GB. ITS NORMAL AND YOUR DRIVE FINE.RELAX AND ENJOY.RICHARDM69

Connector block at the base is stuffed. Needs to be replaced.

Have you connected the device to the computer and run webupdater? Mine showed up with a bluetooth firmware upgrade. Bluetooth works fine, however, lost the functionality of the phonebook after the update. Sometimes you win sometimes you loose

Hmmm, I think the routes are supposed to be on the device memory, like trip logs. You should have like 130 MB of free storage on the device...

I locked my garmin zumo 550 and forgot the passcode