i have raspberry pi 3 model b device in that installed raspbian OS. After installed the OS i check the blue-tooth and WiFi. while clicking the Bluetooth and WiFi it's shows Bluetooth adapter is not found and wireless interface is not found. how to solve this issue.
The problem can be because of two things. one , the raspbian is corrupted download a new one and install again and check. two , the wifi and bluetooth module is fried. U can only use a wifi usb module or ethernet to connect in this case
On the Pi 3 you don't need a Bluetooth adapter as it is all ready built in, I suggest if the built in Bluetooth doesn't work you try reinstalling raspbian from here and running
apt-get update && apt-get upgrade in terminal.
If that still doesn't work get support from the supplier you purchased it from.
Had same issue,I just reinstalled raspbian, the latest one "Stretch", and all is good now.
So install "Stretch".