Mio 268 - Manual (Page 58)

Connection Problems
Cable Connection Problems
Make sure that your device and your computer are both turned on before
establishing the connection.
Make sure that the cable is securely plugged into the USB port on your
computer. Connect the USB cable directly to your computer—do not run
the cable through a USB hub.
Reset your device before connecting the cable. (See section 7.3.) Always
disconnect your device before you restart your computer.
GPS Problems
When there are no valid signals available, you need to consider the following:
Make sure that the GPS receiver is adjusted to the horizontal position and it
has a clear view of the sky.
Note that the GPS reception can be affected by:
Bad weather.
Dense overhead obstacles (e.g. trees and tall buildings).
Other wireless device in the car.
Window tint of the car’s windshield.
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