Press the [MENU] button twice to enter the "SETUP MENU".
Use the [UP] and 「DOWN] buttons to select the "System Info" and press the [OK] button to "System Info" appears.
Check the version.
Creating the Update Media
Download the Updates from the Web site.
Decompress the downloaded file.
Copy the decompressed file to the top of hierarchy in microSD card.
Updating the Program
Precautions
Do not turn off the power of the device, start the engine of the vehicle, or remove the SD card during the update.
Turn off the power of device by turning off the ignition of the vehicle.
Insert the SD card in the device.
Turn on the power of device by turning on the ignition of the vehicle.
The device will automatically show the "Firmware updating?" on the screen.
Press the [OK] button to start the firmware update.
The device will automatically show "Firmware updating... Do not disconnect power !" on the screen.
When the firmware update has been finished, the device will restart automatically.
After the firmware update has been finished, press the "Power Button" to turn on the device.