MTB75 0 Posted October 12, 2018 I got a DVR few days ago for free but there is a problem. An owner tried to flash firmware but I guess there was something wrong. Every time system starts there is an upgrade screen. If I click upgrade there is no effect and when I click exit then 4 cams is visible on screen for few seconds and system restarts. If it stays on upgrade screen I can access to DVR via LAN but it requires username and password. Tried 123456, 111111, 000000 and many of them but none works. There is no visible marking on device, it is 4 channel DVR. There is XJL2704AS-SL(v2.2)201504284046 on motherboard. I got also a screenshot of a system data from past owner before the problem appears. Maybe can help recognizing the device. Can anyone help? Maybe new firmware flash can help? Share this post Link to post Share on other sites