Thanks for your info.This might help
Solved - IPC-HDBW5442R-S - Algorithm authorisation expired please update license.
G'Day from Downunder, So I purchased myself 4 x IPC-HDBW5442R-S from a Chinese seller on Ebay https://www.ebay.com.au/itm/Dahua-4MP-AI-Starlight-IP-Dome-Camera-POE-IR-WDR140dB-TF-IPC-HDBW5442R-S-2-8mm/184045076367 Everything looked the goods. I checked that it was a genuine international...ipcamtalk.com
Yes, I have a 128GB SD mounted, but is almost empty (380 MB used). I think would be better to upgrade since the current fw is pretty old (V2.800.0000000.21 is available)Probably just a bug then in the reboot startup. These things can get hung up on something and a reboot fixes as you found out. I wouldn't worry about it since a reboot fixed it.
Do you have an SD card in the camera? If so check and see if it is full as it is a known issue the cameras can get buggy with a full SD card.
Thank for the info. Anyway I buy all my Dahua cams from an authorized dealer so I never experienced any trouble in fw upgrade (of course I use only fw from Dahua intrnational website).Before you updgrade the firmware, be 100% sure that you have a camera that can be. Many cameras sold are not able to be updated and we get a lot of threads started with people that bricked their camera because it was not able to be updated.
Many vendors put a notice on the write-up, but many do not.
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