Broadcom BCM43142A0蓝牙无法开关问题求助

云上老周

2026-4-15

Hey there, sorry to hear you're stuck with your Broadcom BCM43142A0 Bluetooth toggle issue! The firmware missing problem you mentioned is super common with this chipset, and I’ll walk you through fixing it step by step.

First, confirm your system detects the Bluetooth hardware
Open your terminal and run either of these commands to check if the chip is recognized:
lspci -k | grep -A 3 -i bluetooth (for PCIe-connected modules)
lsusb (for USB-connected modules)
Look for a line mentioning "Broadcom" or "BCM43142A0" in the output—this confirms your system sees the hardware.
Install the required firmware package
For Debian/Ubuntu-based systems (like Ubuntu, Linux Mint, Pop!_OS), the firmware for BCM43142A0 is included in the firmware-brcm80211 package. Run these commands in terminal to install it:
sudo apt update
sudo apt install firmware-brcm80211
If you’re using a different distro (e.g., Fedora), you’ll need to install the equivalent package—usually broadcom-wl or broadcom-bt-firmware (check your distro’s package manager for details).
Restart Bluetooth (or your system)
After installing the firmware, first try restarting the Bluetooth service to load the new firmware:
sudo systemctl restart bluetooth
If that doesn’t work, go for a full system reboot:
sudo reboot
Verify and test the Bluetooth toggle
Once your system is back up, try toggling Bluetooth via your system’s settings menu. If you want to check via terminal, run bluetoothctl, then type power on and power off to test the toggle functionality. If you see errors here, run rfkill list to check if Bluetooth is soft-blocked—if it is, unlock it with rfkill unblock bluetooth.