Bricked Dahua NVR - Anyone know this model firmware?

[adam77 0]

After replacing the Board fan on my Dahua OEM NVR i decided to upgrade the firmware as i was having some issues with the camera configuration not saving. Anyhow did a quick search and found General_NVR4xxx_Eng_PN_V3.203.0000.0.R.20170612.bin

 

Now it seems like ive bricked it ~ a never ending boot loop with no display or post beep.

 

Anyhow ive researched and found the TFTP upgrade information at http://www1.dahuasecurity.com/download/TFTP%20upgrade%20instructor.pdf

 

Only i don't know the right firmware to use.

 

Model is TY-NVR08P

 

Anyone have any idea which firmware is compatible ?