Do not expose your mobile set to dust: experts

“Users should clean their mobile sets regularly, since the face sweat will most likely leak to the device and will cause disorder in communication,” Ebrahim Dorostkar told Mobna news agency.
“Also users should not expose their mobile sets to strong sunlight and rain, neither throw or hit it,” he said.
“Users should pay attention that when the set becomes wet they should not use it and dry and repair it quickly,” Dorostkar added.
“Mobile sets should not be exposed to environments high heat especially in summer mobile phone battery most likely to be damaged and ruined,” he said.
He advised users for better maintenance of mobile set it should not be used when is charging, since chargers temperature will increase and will damage mobile set. 
“Users should use original charger of mobile set, since different chargers use different voltages that will cause damage the battery,” he added.
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