there...succesfully upgraded my 770 with the latest Oct2015 fw. (note that I also managed to change the fw upgrader program into english). I'll be busy checking this out in the meantime before my wife beckons me to bed!
I'll free up some time to write about the process whenever I get the chance - my wife gave birth to my 2nd kid a couple weeks ago so yeah you guys can understand. I'll be around to help you folks out. I realized that I mistakenly d/l'd the wrong 770 firmware previously! Thanks JD!
update 1 and further impressions:
-I can definitely attest like others have said that with each FW upgrade there is some noticeable changes in SQ. I actually do get a hiss(!) using the LO output: my Rx amp definitely confirms that! I'm not super impressed lol. I normally max mine (you'll understand why when you hear this amp) but if I turn it down it lessens the stupid blow of hiss.
-The previous FW (OLD Hi-Fi 8740) through the amp provided airier highs without the slightest hiss!!! It's also nice to have to top button pause and play & the touch screen response is a lot faster/sensitive. So yeah, I'm reverting back to to the previous fw. Hopefully you guys find what works best for your setup.
@Niyologist - Yes there are 5 options (no you ain't going crazy) choose the 5th which by defaults updates your player's library,which then naturally lead you to the general settings option. You then head to the 6th line and select the language that brings a smile on your face lol.
-I'm not sure I'm inclined to keep the update. I actually notice some subtle changes with the imaging - the image became slightly closer(if not intimate), this means instruments grew sideways in terms of imaging. There is a also a subtle fatness &warmth in bass which is nice, but that can overwhelm the overall soundstage. Again, this is my impression with my setup so ymmv.