You are telling about 2 different firmwares:
DVRxx04HF-X-E(V2.0)
DVRxx04HF-X
For DVR1604HFA - DVRxx04HF-x is compatible but provides PN to check for 100%.
You are telling about 2 different firmwares:
DVRxx04HF-X-E(V2.0)
DVRxx04HF-X
For DVR1604HFA - DVRxx04HF-x is compatible but provides PN to check for 100%.
Okay, thank you for the information regarding the firmware compatibility!
I applied the firmware I have found a year ago to my DVR and it runs smoothly since then.
Too bad this model is no longer maintained.