It's been said before but I'll just confirm. Axon 7 (snapdragon) worked on Marshmallow with 703, but after upgrading to 7.1.1 both 703 and 704 don't work. 704 gives the option but says output failed as soon as you plug in the audio jack.
Hey Max, how about compiling me an Axon 7 compatible apk of version of 704 and I'll paypal you $100? I know beta 3 is in the works, but as nice as a UI update would be, I'd just like my audio to work well.
My Audeze's are so sad with all these downsampled FLACs.