Philips SPM7800/10, Руководство пользователя

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4 Troubleshooting
Ensure that the Nano Dongle of your mouse is properly plugged
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into a USB port on your computer.
Ensure that there is power in the battery.
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Ensure that batteries are inserted with correct polarity (+/-) as
indicated.
Ensure that you are not using the product on glass.
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If no response from the product, ensure that you use the product
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within effective range.