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buildings or in the underground room, the radio wave can't be effectively convey.
If using tablet to make a conversation during the busy time, such as commuter time,
may cause can't call out.
Unable to call in
Please confirm tablet has turned on, and connected to network.
Please confirm whether due to debt and be barred.
Please confirm whether SIM Card is effective.
Please confirm whether setting call restriction function.
Contact
Please keep microphone close your mouth.
Standby time become short
Standby time is related with network system setting, if you stay in poor reception area,
tablet will continue to launch in order to find the base station when can't receive signal,
a lot of battery power will consume, and standby time would be short. Please using in
strong signal area or temporarily turn off it.
No power
Check if plug is connected.
If dirt is accumulation, wiping tablet and battery connection port with a soft clean cloth.
Please change the charging environment when below 0℃ or above 45 ℃.
Battery or charger need to be changed when damaged.
If the guide information couldn't help you to solve the problems, please record your
Tablet PC's model and serial number, license or insurance policy information, and a
clear description of the problem, then contact the local customer service.
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