Where to get firmware 3.0.3.56 to Downgrade?

[Percy Yeung]

I unfortunately installed the latest firmware because my camera has been dead for a while.

I have a serial connection to it if that helps.

I tried installing this on the newest version of the firmware, but even after jumping through the many hoops, it seems like the newest version doesn't come with libz.so.1, so rtsp does not start.

Any ideas? If not, does anyone have the old 3.0.3.56 firmware by any chance?

[Percy Yeung]

I was able to solve my issue by taking the libz.so.1 from 3.9.4.32