CM820V-W User Manual
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settings” is checked, which means the existing configuration will be kept after the system upgrade,
otherwise the router will be reset to factory settings. We recommend to un-check “Keep settings”
to prevent conflicting parameters after the firmware upgrade.
Click the button “Choose File” and select a compatible firmware, then click the button “Upload
image”. The router will run a basic check of the file. If it is an incompatible file, an error message
will appear like this one below:
If the firmware file is ok, a verification message will appear. Click the button “Proceed”, and the
system will restart after a few minutes.