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Any body help me out to install bluetooth driver in lenovo B570e.

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please tell your harware with pasting result of lsusb – rzr May 17 '13 at 23:00
up vote 0 down vote accepted

sudo service network-manager stop sudo rmmod acer_wmi sudo modprobe acer_wmi sudo rfkill unblock all sudo service network-manager start sudo rmmod -f acer_wmi

then to get the settings to stick after reboot type

sudo su echo "blacklist acer_wmi" >> /etc/modprobe.d/blacklist.conf exit

and you will have working wifi and also bluetooth for further detail visit the site

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