9. Some problems in "Exclusive USB audio access mode"

Due to the system and hardware differences of Android-based mobile phones or music players, there are still some permission conflicts and optimization compatibility issues when the playback device works in "Exclusive USB audio access mode". Here are the details we know.

(1) Some mobile phones do not have a physical volume button (such as HUAWEI Mate30 Pro). When playing music on the FiiO music app with Exclusive USB audio access mode enabled, you can adjust the volume by sliding up the volume bar on the main playback page.

(2) Some phones' power management policies do not allow third-party programs to run in the background by default, which may cause the music app to sleep and pause after a few seconds in "Exclusive USB audio access mode". You can set the corresponding app to "Allow background activity" in the battery management menu.

(3) In "Exclusive USB audio access mode", operating other apps may lead to broken sound or sound stutter. We are still working on solving this issue. It is suggested to focus on listening to music while enabling the "Exclusive USB audio access mode". Or, just disable it.