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Open Update Manager, view menu, linux kernels and install the newest 6.5 kernel and reboot

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inxi -JFxxxz

Power off the laptop and hold the power button for 30 seconds, then boot

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lsusb; dmesg | egrep -i 'blue|firm'

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dmesg | egrep -i 'b43|firm'

Maybe try

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bluetoothctl
power on
scan on

Then use bluemand to try to connect

My guess is that you need to follow instructions from https://foxclone.org/downloads/20230509-LM21_legacy.pdf

Before attempting to connect in terminal

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tail -f /var//log/syslog

See what is happening

You may have to set the channel on the access point to use channel 1-11 instead of auto channel. The Broadcom drivers normally don't allow the use of channel 12-14

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sudo apt remove bcmwl-kernel-source

Then go into Update Manager view menu, linux kernels, install the newest 6.5 kernel and reboot

On the third computer, do sudo dkms uninstall btusb/4.1 sudo dkms remove btusb/4.1 --all sudo rm -r /usr/src/btusb-4.1 cd bluetooth-5.15 git pull cd sudo dkms add ./bluetooth-5.15 sudo dkms install btusb/4.1 Reboot You might want to run this on the others echo "options btusb enable_autosuspend=...

See the wireless script link in my signature and post results

I don't know what the issue might be, the results look fine

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lsusb; hciconfig -a; dmesg|egrep -i 'blue|firm'

Can you use Update Manager, view menu/linux kernels to install the newest 5.15 kernel and reboot?

Can you put the Mint 21.3 Edge ISO on USB and boot the computer?

In terminal

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sudo apt install git dkms
git clone https://github.com/jeremyb31/bluetooth-5.15.git
sudo dkms add ./bluetooth-5.15
sudo dkms install btusb/4.1

Reboot

Lähetä tulokset terminaalista haulle

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mokutil --sb; dmesg|egrep -i 'blue|firm'

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cd /lib/firmware/brcm
sudo wget https://github.com/winterheart/broadcom-bt-firmware/raw/master/brcm/BCM43142A0-0a5c-21d7.hcd

Reboot

Go into Update Manager, view menu/linux kernels and install the newest 6.5 kernel, reboot and see if the internal wifi functions better

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