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Insert USB memory stick into DVR and update DVR with the new firmware.
( Main menu > System update > Device‐ USB > Update ‐ Yes)
5.9.2 NETWORK UPDATE
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It may fail due to user's Internet environment.
In this case, USB update (by Web Hard download) is recommend.
NOTE
Firmware download from "Web Hard" is recommended.
For network update, DVR should be connected into
internet line.
NOTE
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