Dahua DHI-NVR2104-I Firmware region problem?

[wackid]

I have bought a NVR the DHI-NVR2104-I , i believe last year from Aliexpress . Which all worked fine with AI etc etc.

Now i saw there was an update and updated the firmware. But now all the four camera feeds give a green screen.....

I guess i am screwed and there has been a region update??? I knew there was that kind of things with my old Hikvision camera's. The seller assured me this wasnt the case with this device.....not region locked....

Can i revive this brick???

 

[wittaj]

Ouch, you just learned a hard lesson...

A common theme around here is don't fix what ain't broke. If the unit is working and meets your needs, in many instances an update breaks what you had working and provides you with something you didn't need. A Dahua Z12E that someone updated and then constantly reboots comes to mind, and a certain Dahua PTZ that loses autotracking with an update come to mind, a Hikvision ANPR camera losing half the FPS and loses the ability to read US plates - those are big deals to have happen. Don't do it unless it is fixing a problem you are experiencing or adds a feature you really need.

Further, it is best to obtain any firmware updates from the vendor you purchased it from so that you do not run into issues. Any firmware you find here or elsewhere is obviously proceed at your own risk. We have many threads here where someone tried an update with a firmware they found on the internet and bricked their unit.

Many units being sold are Chinese hacked units that will either brick or go into Chinese upon updating. Some vendors will be upfront and tell consumers that as part of their website, but many do not or the consumer forgets...here is one such example....




With that said, since you have the NVR working it sounds like (except the video is green screen). I would try a couple of factory resets on the NVR and see if there was some left-over junk that didn't get wiped out in the update.

 

[wackid]

Ouch, you just learned a hard lesson...

A common theme around here is don't fix what ain't broke. If the unit is working and meets your needs, in many instances an update breaks what you had working and provides you with something you didn't need. A Dahua Z12E that someone updated and then constantly reboots comes to mind, and a certain Dahua PTZ that loses autotracking with an update come to mind, a Hikvision ANPR camera losing half the FPS and loses the ability to read US plates - those are big deals to have happen. Don't do it unless it is fixing a problem you are experiencing or adds a feature you really need.

Further, it is best to obtain any firmware updates from the vendor you purchased it from so that you do not run into issues. Any firmware you find here or elsewhere is obviously proceed at your own risk. We have many threads here where someone tried an update with a firmware they found on the internet and bricked their unit.

Many units being sold are Chinese hacked units that will either brick or go into Chinese upon updating. Some vendors will be upfront and tell consumers that as part of their website, but many do not or the consumer forgets...here is one such example....

View attachment 110828


With that said, since you have the NVR working it sounds like (except the video is green screen). I would try a couple of factory resets on the NVR and see if there was some left-over junk that didn't get wiped out in the update.

Thanks for your quick answer..... yeah the if it ain't broke, don't try to fix it is always true..... but you know how humans are....newer is better....more features,,,better security and we are curious.

But luckily it's not bricked.... i came to the brilliant idea to hook it up on my tv with HDMI. And BAM there was the image....
Plugged it back on the network and started Edge Explorer instead of Chrome. And all feeds showing fine....

i guess its a codec thingy in chrome???

 

[wittaj]

That's good - you dodged a bullet there!

Yeah, Chrome has made some changes, and these devices were designed around Explorer.

Glad you got it going!