My sister just bought an iPhone. She very new on iPhone plus she not a technical person. She’s stuck while need to use bluetooth device. She’s ask me how to enable the bluetooth on iPhone? It simple but really hard for non technical people especially on mobile device.
Here the simple way to enable bluetooth on iPhone.
1) Click on Setting icon on your iPhone home screen
2) Click on General under setting.
3) Then click on Bluetooth Tab on General
4) And for the Last, tap the bluetooth toggle button to turning on or off . While its turning on, iPhone is automatically searching any available bluetooth device nearing your iPhone.
Simple right. Good luck and make it yourself. 
