Galaxy A3 2016 bluetooth problem.Devices are visible but won't pair I have a Samsung Galaxy A3 2016 Android Version 7.0 . 

Pairing with other devices was working just fine until the last couple of months . 

Lately my device can discover other devices , but pairing is not working with any device . 

I tried to pair it with my laptop, beats and a LED bulb but it's not working . 

Any ideas ?
It may not work but I just rebooted the phone then paired again and it worked !  Mike