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To activate the touch screen backlight:
• Press and hold the power button
until the backlight turns
on.
To turn off the touch screen backlight:
• Press and hold the power button
until the backlight turns
off.
Using the SD/MMC slot
NAV 350 has an SD/MMC slot compatible with a range of SD and MMC
storage cards that you can use to back up or transfer files and data.
Also, the NAV 350’s GPS navigation system has its core on the Destinator OP
program. Using this program requires that users load the digital maps
available in the Destinator OP SD card included with the device.