Is Amazon Prime Video App streaming in 4K? I cannot seem to play 4K format on my Apple TV 4K version.
Hi,
I had some trouble also with Amazon Prime Video on my Apple TV 4K.
Everything was working fine with HDR movies but one day, impossible to play HDR videos.
And I found the solution (by only thinking about what I changed in my configuration ...):
Check in Apple TV Setting - Video & Audio - Check your cable or Format - You should have 4K HDR selected and the requirement is to have the right cable. In my case, my Apple TV was directly connected to my LG 4K TV and I had a second cable connected from my LG 4K TV to my Sony Soundbase. And I decided to change the connection in order to listen music without letting my LG 4K TV switch on. So, I connected my Sony Soundbase to my Apple TV 4K, big mistake! As my Sony Soundbase is not 4K compliant, my Apple TV 4K selected the format 4K SDR (without notify me ...) and Amazon Prime Video was not able anymore to play HDR videos ...
Hope this helps.
Apple, if you're listening, there might be a common thread here. Several people, including me, have mentioned that the tv's they are using with the ATV4K are 4K but not HDR compliant.
FYI ... Figured out my issue. My Sony has 4 HDMI ports ... only PORT 1 and PORT 2 support HDCP. Once I moved my AppleTV to one of those ports Amazon Prime UHD streams just fine ..
Glad to help!
I had to go to my receiver and make sure the input I was using was hdcp compatible. All my tv inputs were but only one of my receiver HDMI inputs were compatible. Thanks for the tips.
Is Amazon Prime Video App streaming in 4K to Apple TV
