The latest firmware for your DVR is 4.25.001 build 201107, see the download link (second file). You can upgrade straight to this version but it's recommended you factory default and set your DVR up from scratch after updating
The latest firmware for your DVR is 4.25.001 build 201107, see the download link (second file). You can upgrade straight to this version but it's recommended you factory default and set your DVR up from scratch after updating
The latest firmware for your DVR is 4.25.001 build 201107, see the download link (second file). You can upgrade straight to this version but it's recommended you factory default and set your DVR up from scratch after updating
It's not necessarily needed. However in the above case, the user was skipping 3 years of updates to the latest. Version 3 to version 4 is a major update so issues can occur.