mrbakht

Hello Dear, I have 16 channel dvr Danale, there mobile app crashes every time, i cannot watch fast mode in there mobile app i have to watch every second of clip to see what happen please guide me can i update or change Firmware of Danale DVR to any other Firmware like Hikvision or Dahua ? can any one find me mobile app which can be compatibale and easy to use, i tried bunch of app but none of them add my device...