Operating Instructions

System maintenance and user support
Acer d100 Portable Navigator 57
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3. Tap on the Main Menu panel.
4. Tap on the System panel.
5. Tap Calibration on the System Info screen.
6. Tap the center of the black dot as it moves around the screen.
7. Tap to apply the changes made.
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You may have to perform a reset if the device freezes (i.e., device no longer
responds to the buttons on the screen). A soft reset allows your device to get
a fresh start, similar to rebooting a computer. This will restart your device and
adjust memory allocation. All records and entries are retained after a soft
reset. GPS settings are also retained.
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• Hold the device securely, then press the soft reset button on the
bottom of your device.