3.The device works abnormally.
PC can not
1. Poor connection of USB
identify SD card
interface.
drive letter.
2.SD card is damaged.
The device can
not be used for
1.The battery is not charged fully.
full time after
2.The device works abnormally.
charge.
The battery can
not be fully
charged even
The device works abnormally.
after 10-hour
charging
time.
1.Connect the USB data line
repeatedly.
2.Contact local service center.
1.Please charge the battery.
2.Please contact the after-sales.
Please contact the after-sales.
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