FAQ for BTR7 headphone amps
Q1: Why can't BTR7 headphone amps be paired and connected to my phone? How to reset?
(1) [Clear the pairing information on your phone]:
Go to Settings-Bluetooth to delete the BTR7 pairing information and reconnect it to BTR7 Bluetooth amps.
(2) [Clear the pairing information on BTR7]:
When it is on, hold both the volume- and volume+ buttons at the same time for about 5s.
(3) [Reset operation]:
Click the power button and the volume - button at the same time.
Q2: How to use the BTR7 amplifier as a USB DAC for mobile phones?
[Android phone]
Use the Type-C to Type-C cable included in the package to connect the BTR7 to your mobile phone. Play music to directly enjoy high-quality music.
Note: If there is no sound after connecting, you need to pay attention to the following points:
(1) Settings on apps, such as FiiO Music, there is a USB output that needs to be enabled, but some devices will have sound only with the USB output turned off.
(2) Please check if the USB debugging is enabled in developer mode.
You may need to open "Developer Options" in "Other Advanced Settings", and then enable the "USB Debugging" or "OTG" function.
(3) Please confirm whether the cable is FiiO's type C to type C cable, whether the cable is reversed as there is a direction indication.
(4) After the above settings are completed, you can try to re-plug the data cable, or play the track, play another track to make sure whether it is a hardware or software issue. If your issue remains, please contact our support team by google "fiio" to confirm whether it needs to be returned.
[iPhone/iPad]
Users of BTR7 Standard Edition: please buy an extra Lightning to Type-C cable.
Users of BTR7 Apple Edition: there is a Lightning to Type-C cable included in the accessory.
Connect the BTR7 to the iPhone/iPad/iPod via this cable to enjoy high-quality music.
Q3: How to switch Bluetooth codec for BTR7 in your Android mobile phone?
When connecting BTR7 amplifier to Android mobile phone which supports Aptx adaptive Bluetooth codec, the default Bluetooth codec will be Aptx adaptive.
If you would like to use other Bluetooth codec(Like LDAC), please follow this steps for help:
1. Enter FiiO Control app-BTR7-Status.
2. Click "select Bluetooth code".
3. Cancel the selection of "Aptx adaptive" ,then click"ok".
4. The BTR7 will restart and reconnect to the mobile phone via LDAC or other Bluetooth codec.