[Tedkiller]

One of the two: enable "Bypass HDCP" in InputStream.Adaptive, or download and setup playback to use the native app.

Bypass HDCP is ticked and let me have 1080p instead of 720p but no 4K.

Use amazon app give me a black screen

It stopped being possible to get 4k in the Kodi addon on the Shield some time ago. Not sure why. 1080 is the most you can get now, but at least you get proper audio (unlike the 'proper' Amazon app which only outputs stereo on the Shield). But you should be able to get the Amazon app working for 4k content (just with stereo). Basically Amazon on the Shield is a PITA these days - I have to use the TV's native app, and put up with their crap interface.

Thanks for your feedback, I was going nuts trying to get 4K and focusing on the video, I didn't notice the stereo issue with the native crappy app. what a shame.

Old fashion way of downloading the full cracked stream seems to still be the easier way to get 4K and proper audio ! (but losing the HDR metadata). At the end there is no way to have the 4K HDR with proper audio...

My end goal of using the kodi plugin is to be able to position the subs higher than bottom of the screen (using the calibration options) because I'm using a 2.40:1 screen with a projector. It's working great for my own medias and for others streaming services like Netflix and Disney.