The Problem

Occasionally, my iPhone refuses to find my macbook when attempting to connect with Airdrop. I’ve searched high and low for a solution, and until recently I have had to restart my computer in order for the two to gracefully connect. Until now…

The Fix

Wait for it… just open your bluetooth preferences. Click the bluetooth icon on the right side of your Macbook menu bar and select “Open Bluetooth Preferences”. Wait for the menu to open, give your phone a couple seconds, and voila, connection at long last.

The source

Thanks to Sajad Amirsardari’s comment on this post for the solution.