Dahua-technology USB Upgrade instructor Instrukcja Użytkownika Pobierz pdf (Strona 5)

The total process is about 5-6 minutes,

Click “OK”,to restart the DVR , and that’s all

7. Attention:

A、 Never cut off power during upgrade

B、 You’d better restart the DVR before upgrade

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If you still have any problems about these functions, please contact with our engineers.

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Dahua-technology USB Upgrade instructor Instrukcja Użytkownika Strona 5