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1. No sound while calling
a. The connection cable between monitor and camera is loose. b. The volume has be turn
to the end.
2. Unclear image
Please check if the brightness is turned to too down, please adjust the brightness knob.
3. Can't unlock
Unlock cable is not well connected, or shortcut. Or, the connection cable is too far away or
too slim from the indoor and outdoor unit, please try to change to better quality cable.
Otherwise, please check if the electric lock is compatible with this product.
4. Date/time are inaccurate
When the power dropped or draw out, insert the power again, the date and time will be
inaccurate, only need to reset it.
Warning:
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