Garmin GPS navigators are equipped with carefully designed proprietary maps. However, over time, even the best cards become obsolete and have to be removed to install new ones.
Instructions
Step 1
When the maps available in the navigator lose their relevance, you need to take care to replace them with new ones. You can, of course, purchase updates from an official representative, or you can independently download the necessary information into the device, having previously removed unnecessary information from it. To remove the map, connect your navigator to your computer. Use a mini-USB cable for this.
Step 2
An image of two new removable devices will appear in the open My computer window on the computer: the connected device (Garmin folder) and the memory card in it. In Total Commander, turn on the image of hidden, as well as system files, since you will have to work with them. In the main menu of the program, click the "Configuration" tab, and then "Settings". In the window that appears, sequentially select "Panel Content", "File Display". In the last tab, select the item "Show hidden / system files", then confirm the action with the Enter key or by pressing the OK button.
Step 3
To erase maps, go to the drive of the device itself, open the System folder in it, and then delete two files in it called gmapbmap.img and gmapprom.img. Files are deleted by highlighting each of them and pressing the Delete button
Step 4
This action can free up a significant amount of memory - about 700-900 MB, depending on the model of the device. It remains to place the required amount of information in the form of new cards. After you finish working with the device, double-click the "Safely Remove Hardware" icon located in the notification area on the taskbar, and then disconnect the navigator from the computer.