update latest firmvare from here: http://www.fiio.me/forum.php?mod=viewthread&tid=45117&extra=Thanks for your helpful posts in this thread.
How do I get UAPP onto the M11 Pro? I don’t see it in the Apps section.
Thanks again - I’m new to DAPs (old school vinyl guy).
log in to google play. After You can download it from Google store do not forget to pay for MQA support