It does not work customizing xiaomi headphones and equalizer with app google play music.
with the original miui everything works regularly
Dalvik and cache clean after each installation.
thank you
xiaomi mi 5pro 4/128
MIUI 8.2 - 7.1.20
No I have not tried a subscription to play music and always xiaomi earphones use of different kind.
Even with the equalizer changes are not reflected in the 'headset while listening