Motorola R750 User Manual page 82

If the phone does not work after following the steps listed above, contact your
dealer for servicing information.
Clean the external surfaces of the radio product with a damp cloth, using a mild
solution of dishwashing detergent and water. Some household cleaners may
contain chemicals that could seriously damage the radio product. Avoid the use
of any petroleum-based solvent cleaners. Also, avoid applying liquids directly
on the radio product.
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