The only firmware I have access to is the one @EMPIRETECANDY posted here: IPC-HFW1831E New Firmware DH_IPC-HX2(1)XXX-Sag_EngSpnFrn_NP_V2.622.0000000.8.R.180731.bin I suggest trying out the H.265 and lowering the frame rate until you get some acceptable quality. I'm running mine on H.265 @ 8192kbps (because even if you set a custom bitrate, whenever the camera reboots, or loses power, it reverts to the bitrate given in the spec. sheet. This is true even of the Pro/Eco-Savvy cameras like 5231R-ZE, 4231EM-ASE, 4830EM-AS, 5831R-ZE, etc.) To be honest, I'm not noticing a huge difference between the higher bitrate image quality and the lower bitrate (albeit at dramatically low fps). I ran my tests @ 7fps for H.265 and 3fps for H.264H. This isn't ideal, but if you're just trying to ID a car or person, it works.