Thank you for helping me.
I have my old laptop which has a Ralink corp. RT3290 wifi combo bluetooth module and th wifi works properly but i tried too much but could never succedd in turning on the bluetooth the laptop is hp probook 4540s using it for 8 years from the beggining the bluetooth wont work but works fine with windows
You're welcome, dude! I'm sorry to hear that you're having issues with the Bluetooth of your HP ProBook 4540s in Linux.
Firstly, make sure that the Bluetooth module is detected by your Linux system. You can check this by running the following command in the terminal:
lspci -nn | grep -i bluetooth
If the output of the above command shows that the Bluetooth module is detected, then you can try installing the necessary Bluetooth packages and firmware to get it working. You can use the following command to install the required packages:
sudo apt-get install bluetooth bluez bluez-tools rfkill
After installing the packages, you may need to load the Bluetooth kernel module. You can do this by running the following command:
If the above steps don't solve the issue, you can check if the Bluetooth radio is turned on. You can use the following command to check the Bluetooth radio status:
If the output of the above command shows that the Bluetooth radio is blocked, you can unblock it by running the following command:
sudo rfkill unblock bluetooth
If the above steps don't solve the issue, you can try resetting the BIOS settings to default. You can refer to your laptop's manual or documentation for instructions on how to reset the BIOS settings.
If none of the above steps work, it's possible that the Bluetooth module is not fully supported by your Linux distribution. In this case, you can try using a different Linux distribution or look for a compatible Bluetooth module.
I hope this helps you get your Bluetooth working on your HP ProBook 4540s. Let me know if you have any more questions.