Garmin 420 Manuale Proprietario

a

PPendix

My battery gauge does 

not seem accurate.

Allow the unit to fully discharge and then fully charge it (without 

interrupting the charge cycle).

The touch screen is not 

responding to my taps 

properly.

Calibrate the touch screen . Turn the unit off. Press and hold 

 for about one minute until the Calibration screen appears. 

Follow the on-screen instructions.

The zūmo freezes up.

Reset the zūmo. Press and hold 

 and press 

.

How do I clean the 

zumo?

The zūmo is constructed of high-quality materials and does not 

require user maintenance other than cleaning. Clean the unit’s 

outer casing (not the touch screen) using a cloth dampened with 

a mild detergent solution, and then wipe dry. Avoid chemical 

cleaners and solvents that can damage plastic components.

How do I clean the 

touch screen?

Clean the touch screen with a soft, clean, lint-free cloth. Use 

water, isopropyl alcohol, or eyeglass cleaner, if needed. Apply 

the liquid to the cloth, and then gently wipe the touch screen.

The suction cup will not 

stay on my windshield.

Clean the suction cup and windshield with rubbing alcohol. Dry 

with a clean, dry cloth. Mount the suction cup as described on 

.