: Connect the USB drive to the DVR. Use your mouse to right-click and go to Main Menu . Navigate to Upgrade : Go to Settings or System . Select Upgrade (sometimes under Maintenance ).
CP Plus generally does not provide direct "one-click" public downloads for individual firmware files to prevent users from bricking their devices with the wrong version. There are two official ways to get the correct file: Contact Support (Recommended): support@cpplusworld.com with a photo of your System Information cpuvr0401e1s firmware download better
Sophisticated firmware management includes rollback protection. If new firmware fails a validation check post-flash, the bootloader should automatically revert to the previous stable version. Users seeking to "download better" should look for firmware packages that include redundancy files or A/B partition schemes. : Connect the USB drive to the DVR