"Bluetooth device not detected or Not found"
Often this problem found in Lenovo, Dell, Acer and HP Brands
so here is a perfect solution for this problem
Simply download and install "Energy Management" Software and install it.
(From the Manufacturer site of your Laptop)
Reboot
and try turning on your bluetooth/wi-fi by pressing your Function key or switch
and reinstall your Bluetooth Software.
It will work Fine
Tested on Lenovo 3000 G430
By completing these steps you will be able to solve your problem without asking anyone.
If this solution solved your problem, Don't Forget to comment.
