README.md

Arch Linux Bluetooth Troubleshooting

Description

This repository provides comprehensive guidance and resources for resolving Bluetooth issues on Arch Linux systems. If you encounter errors such as "No default controller available" or encounter difficulties with Bluetooth functionality, this guide will assist you in resolving them step by step.

Instructions

Step 1: Identifying the Problem

sudo dmesg | grep -i bluetooth

Step 2: Finding the Missing Firmware

sudo ls /lib/firmware/mediatek/BT_RAM_CODE_MT7961_1a_2_hdr.bin

#This command checks if the necessary firmware file is present.

Step 3: Locating an Alternative Firmware File

ls ~/linux-firmware/mediatek

#If the firmware file is missing, this command helps you find an alternative one.

Step 4: Copying and Renaming the Firmware File

sudo cp ~/linux-firmware/mediatek/BT_RAM_CODE_MT7961_1_2_hdr.bin /lib/firmware/mediatek/BT_RAM_CODE_MT7961_1a_2_hdr.bin

#Copy and rename the firmware file to the correct location.

Step 5: Reloading Bluetooth Modules

sudo modprobe -r btusb
sudo modprobe btusb

Step 6: Restarting Bluetooth Service

sudo systemctl restart bluetooth.service

Step 7: Verifying Bluetooth Functionality

sudo dmesg | grep -i bluetooth
bluetooth scan on