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Note: Use “dv425_upgrade_never_rename” package to upgrade, when
“update success!” shows on the screen, we must unplug the USB disk or SD
card, or else the DVR will go into infinite loop for upgrade and will not boot up.
SOLUTION: Unplug the USB disk or SD card with upgrade package. DVR will
stop the upgrade process and boot up successfully.
Remote upgrade
Step 1
：
DVR connects to server.
Step 2
：
Open the Windows client and log in.
Step 3
：
Find the exact DVR device’s license number in the device list of the
client, right click and select “upgrade” and select the upgrade package
“dv425_upgrade_2017xxxxxxxx”
