In reading the past forums I believe the 975 is HDCP 2.0 compliant but not HDCP 2.2 and they are not backwards compatible.

I have a Model 975 that has been in the box for... quite a while. I would like to apply the firmware upgrade. I have the USB to Serial cable but I seem to have misplaced the software. I can't find it on the support page. Is there a link where I can access it? Tx.

Folks,
HELP. This receiver has been the BEST for years!! Just suddenly, it seems to lose audio channels at random. This happens no-matter-what input I use. The cable box, DVD player & UHD player all have the same problem. I have checked ALL wiring. I have done a lot of diagnostic "stuff". I'm lost! It's so random.....sometimes it's 2 front channels i.e. l/f works, center & r/f NO....sometimes it's NO r/f & center % r/f work....sometimes EVERYTHING works. This AM I had a 7 channel AIX record on & the video & ALL 7 channels were perfect. I've narrowed it done to the receiver since all inputs have the same problem. Any ideas. I'm sure it's something I did but I DON"T know what it was. Is there any such thing as a "re-boot" on the 975????

To reset the 975, press and hold the tuner and mute buttons on the front panel until you see reset show up on the display.

Outlaw Nancy....I haven't received an email or text about this software update. Don't quite know how to do it as I have no internet. I only have data on my cell phone. Thank you.

Orca, when did you buy your Model 975? If it was within the last few years, it came with v5.3 and you would not have to do a firmware update. As such, you would not have gotten the email.