FP4. Troubleshoot a Bluetooth connection

If you are having issues using the Bluetooth on your Fairphone 4 5G (FP4), please make sure to read the article FP4. Connect to Bluetooth.

If you are still having issues after going through the article, please proceed with the next steps.


Check compatibility with Bluetooth protocols

If you can not connect your Fairphone 4 with a device (such as a car stereo or wireless headphones) via Bluetooth, make sure the device uses a protocol supported by Fairphone 4.
Here's the list of the supported Bluetooth protocols:

  • Advanced Audio Distribution Profile (A2DP)
  • Health Device Profile (HDP)
  • Hands-Free Profile (HFP)
  • Headset Profile (HSP)
  • Human Interface Device Profile (HID)
  • Object Push Profile (OPP)
  • Personal Area Networking Profile (PAN)
  • Phone Book Access Profile (PBAP)
  • Generic Attribute Profile (GATT)
  • File Transfer Profile (FTP)
  • SIM Access Profile (SAP)
If the protocol is not listed, it means that the device is not compatible.
Please note that protocols and codecs are different.


Troubleshooting Bluetooth issues

Not connecting

If the protocol is listed, and your Fairphone is up to date, but the issue persists, try the following:

  1. Remove any paired devices from your Fairphone:
    1. Go to Settings → Connected devices → See all → tap on the Cogwheel icon right of each device → tap on the button Forget.
  2. Remove any paired devices from your target device (please refer to the device's user manual).
  3. Boot the Fairphone in Safe mode.
  4. Now try to pair again:
    1. A third-party app might keep the phone from connecting properly if rebooting in Safe Mode solves the issue.
      1. Reboot your phone normally.
      2. Uninstall your apps, one at a time, until you find it the one causing the malfunctioning.
    2. If rebooting in Safe mode does not solve the problem:
      1. Go to Settings → System → Advanced → Reset options → Reset Wi-Fi, mobile & Bluetooth.
      2. Tap on RESET SETTINGS on the bottom and try to pair again.

No automatic connection

Reconnection should happen automatically. If you have to set up the connection manually every time, here are a few things to try.

Clear Bluetooth app storage:

  1. Go to SettingsApps & NotificationsApp info.
  2. Tap on the three dots menu in the upper-right corner → Show system.
  3. Tap on the search icon next to the three dots and type in "Bluetooth".
  4. Select the app and then select Storage & cache.
  5. Tap on Clear storage and Clear cache.
  6. Restart the device and try again.

Reset connection settings:

  1. Go to SettingsSystem → tap on AdvancedReset options.
  2. Select Reset Wi-Fi, mobile and Bluetooth.
  3. Tap Reset settings.
This will remove saved Wi-Fi networks and paired Bluetooth devices.


Still no connection

If, after all this, your Fairphone 4 still does not connect and you have access to another Fairphone 4, try to pair it with the target device:

  1. If the other Fairphone 4 connects while yours does not, make a backup, perform a Factory reset, and try again. If the phone still does not connect, let us know.
  2. If the other Fairphone 4 does not connect, there probably is some compatibility issue. For example check if you need to update the firmware of your other device so they can connect with newer Android-based devices. Please check the Support section of the manufacturer's website of the device you want to pair with for more information.

If all this doesn't work out, please provide us with information about the product (brand, model, version), and we will report it to our developers.



In the meantime, there are still some alternative options:

  • Use a wired headset instead of Bluetooth ones.
  • Connect to your multimedia hub/stereo system via stereo wires.
  • Transfer data via USB cable or Wi-Fi.


If after reading the article you need more help, get in touch with our Customer Support.