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• Why the DVR can not boot up normally?
2016-10-28

*The power supply is not correct.

*Switch power supply line is not in good connection.

*Switch power supply is damaged.

*Check the on-off switch line, is it well-connected?

*The program updating is wrong.

*The hard disk is damaged or the hard disk lines are broken.

*The main board of the DVR is damaged.


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