and Bluetooth.
"Reset app preferences" will reset all preferences including the items shown in
the following picture.
"Erase all data", i.e. factory reset, will erase all data from your device's internal
storage, and all settings will be reset to default. Please back up your important
data before resetting.
FiiO Music APP
The M15S has built in the FiiO Music app, a professional audio playing
application specially developing for Android-based system and flagship-grade
music players.
1.Homepage
FiiO Music APP will enter the homepage once it starts up as shown below.