NVR Dahua NVR recorder serial number as just a bunch of zeroes

I

inge25

n3wb
Feb 19, 2025
5
2
budel
Had a power failure about two weeks ago and when the system came back up the p2p was messed up. Could not get it work on any mobile device. In the process of troubleshooting I noticed that the system does not recognize a serial number. Both in the direct NVR menu as well as the UI interface. The p2p QR code generated shows the serial number as lot of zeros.

I have tried resetting the system back to factory settings. I've downloaded and installed the firmware both on the NVR and on the UI and done factory resets each time. The system always shows the serial number as just a bunch of zeroes. Anyone experience this?
Dahua DH-NVR4208-8P-4KS2
 

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Nope.

I wonder if the power surge took out something?
 
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If it was my device this is what I would do to try and see if it could be re written, Turn off the device, take top off and remove the battery if it is removable as some are and some are not.. If it is remove it and wait for 10 min.. After 10 min put the battery back in and turn the unit back on and see if the chip sends the correct data back to the Memory that is on the machine? It might be damaged and even doing this might not get the correct data sent back to the systems RAM/ROM on boot up but is what I would do if I had this issue..
 
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Revo2Maxx said:
If it was my device this is what I would do to try and see if it could be re written, Turn off the device, take top off and remove the battery if it is removable as some are and some are not.. If it is remove it and wait for 10 min.. After 10 min put the battery back in and turn the unit back on and see if the chip sends the correct data back to the Memory that is on the machine? It might be damaged and even doing this might not get the correct data sent back to the systems RAM/ROM on boot up but is what I would do if I had this issue..
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yes I wil open and give it a try
 
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Personally I wouldn't without being instructed by Dahua Support. If it happens to be bad chip a reset might make it fail completely to where you can't even get it to come back online. A reset might cure it but could also kill it.
 
Revo2Maxx said:
Personally I wouldn't without being instructed by Dahua Support. If it happens to be bad chip a reset might make it fail completely to where you can't even get it to come back online. A reset might cure it but could also kill it.
Click to expand...

Unless he bought it from an authorized Dahua dealer, they gonna tell him to pound salt. They don't deal with us commoners...
 
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