Sunstech TAB900DUAL Manual De Usuario página 31

Any alteration or change to the device may cancel the manufacturer's warranty. If you need to repair the device, take it to an authorized service centre.
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Do not disassemble or make holes in the battery, this may cause an explosion or a fire.
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Turn off the device before removing the battery. If you remove the battery while the device is still turned on, this may cause malfunctioning.
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Take the following information into account when cleaning the device.
Use a towel or a rubber cloth to clean the device and the charger.
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Clean the battery terminals with cotton or with a towel.
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Do not use chemical substances or detergents. If you do so, you may cause discoloration or corrosion of the outside part of the device or you may cause
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an electric discharge or a fire.
Do not use it for any other purpose other than the one it was designed for.
The device may malfunction.
When you use the device in public, try not to disturb others.
Only allow qualified professionals to carry out the maintenance of your device.
It is possible for damages to occur and the manufacturer's warranty is cancelled if you allow non qualified personnel to carry out the maintenance of the device.
Be careful when handling SIM cards, memory cards or cables.
When inserting a card or connecting a cable to the device, make sure the card is inserted correctly or that the cable is connected on the right side.
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Do not take the card out when the device is transferring information or it has access to it, because you may lose data and damage the card or the device.
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Protect the cards from strong discharges, static electricity and noise generated from other electronic devices.
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Do not touch the contacts or the gold terminals with your fingers or with metal objects. If the card is dirty clean it with a soft cloth.
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If you insert a card or connect a cable forcefully or incorrectly you may cause damage to the multifunctional socket or other parts of the device.
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Make sure you have access to emergency services.