FiiO

User manual link: Click here USB DAC driver download link: Click here Firmware download link: Click here

Follow the measures below to see if it can help if the JM21 crashes or freezes: 1.Force to reboot Please hold the power button for around 10 seconds until...

For Windows computers, it is driver-free. After connecting the JM21 to the computer by the included USB cable, the driver will be automatically installed. T...

The JM21 supports online upgrade and local upgrade. 1.Online upgrade If a new firmware is available and can be detected (with the JM21 connected to an ava...

The JM21 has 5 independent working modes: Android mode, Pure Music mode, Bluetooth Receiving mode, USB DAC mode and AirPlay mode. It is defaulted to be the ...

For Mac computers, it is driver-free. For Windows computers, please make the settings as the followed steps. 1.Install the FiiO DAC driver in the computer...

1. Go to the drop-down or Settings menu of the JM21, and choose the working mode as Bluetooth receiving mode. 2. Go to the Bluetooth transmitting list of t...

It is similar to the mobile phone's. Here are the instructions. 1. Go to the Settings->Bluetooth menu to turn on the Bluetooth function. 2.Make the...

The JM21 supports USB audio. The setting steps are as follows. 1. Enable ""USB output"" in FiiO Music app of the JM21. 2.Use an OTG ca...

1. Player Settings - Audio - 3.5mm output selection, set to SPDIF. 2. Connect one section of coaxial cable to the 3.5mm audio port of JM21, and connect the...