How to change bluetooth device name after changed system name?
Bluetooth device name is stored in /var/lib/bluetooth/XX:XX:XX:XX:XX:XX/config
Delete it.
Restart bluetooth service using below terminal command:
sudo /etc/init.d/bluetooth restart
Bluetooth device name is rewritten in config according to the system name.
SUDHARSAN M 
very goofd
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Can’t delete folder
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In a terminal type:
sudo nautilus
then follow the tutorial
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Alternatly edit the file to set a custom name opposed to deleting the file
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