Need firmware for CDJ-850 with active Digital Output

Hi!

I've replaced CDJ-350 to 850 and wanted to connect it through digital output to DJM-800.

Both 350 and 850 has the same DSP, so I didn't see any problem to add a digital output into 850 by myself. So I added next missing parts in 850:

But I was surprised that it didn't work! No signal from 69 pin of DSP at all. So I guess it's the software's lock and I need a new firmware with an active Digital Output. Pioneer DJ, please help to solve this problem!

Thanks!