2. Before the upgrade, ensure the power of the device is adequate (>30%) so to avoid
upgrade failure.
3. If the device goes to factory mode which cannot detect the firmware, the reason may be
that the firmware file is damaged. At this time, press the power button to reboot the device.
Re-download the firmware file and restart the upgrade.
4. How to install third-party apps?
There are two ways that are similar to mobile phones' to install applications.
Method 1: After connecting the device to a valid WiFi, go to FiiO market, Google Play or
other app markets to download and install the app directly.
Method 2 (Local installation): copy the APK file to the M17. Go to the file management menu
to find the file and install it.
5. How to change the language?
Go to Settings->System->Languages and input->Languages->+ Add a language to choose
the intended language. Press the "=" icon on the right side and drag it to the first line to
select the language successfully.
The language of the FiiO Music app defaults to follow the system's. You can also go to FiiO
Music app-> Settings->Languages to choose the language independently.