yes
hm, then it's strange
So i checked once i got home with the Phantom connected. I tried on both my S6 android phone and my nexus 7 tablet. Both have the file in place and, according to the app the extra channels are showing.
What was interesting though, is that i had it on custom before the update. I think 2.8.1 update changed that setting back to auto. I also notice that when auto is selected, the additional channels are not available, as seen here:
I don't know if this was the behavior before or not .. I don't have 2.8.0 to test with, can you check this? it seems that auto is only using the default channels, whereas I recall auto would pick any of the 32 channels prior.