Figuring out Dahua OEM model of Lorex

[phenry370]

I really hope this hasn't been covered already but I'm sure it has. I've spent the last couple of hours reading here trying to figure out how to flash Dahua OEM firmware to some Lorex bullet cams and the best I can understand is the first step is figuring out what the Dahua OEM part number is. That's where I'm currently stuck/unable to find a thread on. If I understand correctly once I'm able to figure out the Dahua part number, finding the appropriate firmware will be the next step and relatively easy. The Lorex model number of the cameras is LNB8921B with a current firmware of V2.460.LR01.4.R

Would anyone be able to point me in the right direction for deciphering or probing the camera for the Dahua model number?

Thanks!

 

[alastairstevenson]

probing the camera for the Dahua model number?

Maybe see if this gives any useful info, via the browser :
http://<camera_IP_address>/cgi-bin/magicBox.cgi?action=getSystemInfo

 

[phenry370]

Maybe see if this gives any useful info, via the browser :
http://<camera_IP_address>/cgi-bin/magicBox.cgi?action=getSystemInfo

That returned,

appAutoStart=true
deviceType=LNB8921B
hardwareVersion=1.00
processor=S3LM
serialNumber=
updateSerial=IPC-HFW4830EP-S

I'm going tot take a wild guess that the "IPC-HFW4830EP-S" is the OEM number?

 

[phenry370]

The closest thing I could find is IPC-HFW4830E-S which is model number "IPC-HFW4830E-S" it doesn't have the "P" at the end of the model number like the camera returned. I'm not sure if that makes a difference or not?

 

[alastairstevenson]

Well, that's a good clue.
I have to say that the significance of the model number suffixes is a mystery to me - but maybe another forum member can comment.

 

[samplenhold]

The 'P' in that model number denotes 'PAL' format. But PAL vs NTSC is really not important for IP cams. Use the model number w/o the 'P'.

 

[phenry370]

The 'P' in that model number denotes 'PAL' format. But PAL vs NTSC is really not important for IP cams. Use the model number w/o the 'P'.

great to know, thanks for the clarification!

 

[pozzello]

I believe the P in the model number is some sort of feature identifier (like not having an SD card or soemsuch), but i'm pretty sure it's not NTSC/PAL. yes. N/P is used in the firmware filenames for NTSC/PAL, but not in the mdoel numbers.

In any case, this firmware has IPC-HFW4830EP-S in the check.img file:

https://dahuawiki.com/images/LX/Fir...nal_NP_Stream3_V2.640.00LR000.20.R.180914.bin

tho this is newer:
New Firmware for IPC-HX5X3X-Rhea_MultiLang_PN_Stream3_V2.800.0000013.0.R.191202.zip

it doesn't help that lorex has different model numbers for what appear to be identical hardware (eg, the lnb8005c, lnb8111c, LNB8921B seem to only differ in the their compatibility with Lorex NVRs, somehow)

 

[phenry370]

I ended up getting the "New Firmware for IPC-HX5X3X-Rhea_MultiLang_PN_Stream3_V2.800.0000013.0.R.191202.zip " to work and then flashed them to "DH_IPC-HX5X3X-Rhea_MultiLang_PN_Stream3_V2.800.0000016.0.R.200605" and so far so good.

 

[Jay DeFuria]

I ended up getting the "New Firmware for IPC-HX5X3X-Rhea_MultiLang_PN_Stream3_V2.800.0000013.0.R.191202.zip " to work and then flashed them to "DH_IPC-HX5X3X-Rhea_MultiLang_PN_Stream3_V2.800.0000016.0.R.200605" and so far so good.

How did you manage to flash it? I'm trying with the same cameras and it seems to just reboot