Fiio M21 - Page 4

Bluetooth transmitting.................................................................................................................16
Bluetooth receiving.......................................................................................................................18
Audio......................................................................................................................................................... 19
Display...................................................................................................................................................... 24
Global........................................................................................................................................................ 26
System.......................................................................................................................................................29
Languages & input................................................................................................................................29
Reset options.......................................................................................................................................... 30
FiiO Music APP............................................................................................................................................... 30
Instructions for commonly-used functions............................................................................................39
1. Screenshot...........................................................................................................................................39
2. USB Audio digital output................................................................................................................39
3. FiiO Link Bluetooth control............................................................................................................ 40
4. FiiO Link Wifi control........................................................................................................................40
5.How to use the DLNA function?.................................................................................................... 41
6.How to use the coaxial function of M21?................................................................................... 41
7. What can be done if I forget my password? How to enter recovery mode?.................. 41
Firmware upgrade, factory data reset and technical support .......................................................... 43
1.How to upgrade firmware?............................................................................................................. 43
2.Force to reboot................................................................................................................................... 44
3.Factory data reset...............................................................................................................................44
4.Technical support ............................................................................................................................... 45