Q:

Missing bluetooth applet on 16.04

I once messed up with rfkill command, which cause my bluetooth applet to disappear. Re-enable from system setting doesn't seem to work, it will stay disappear.
This question is similar to Bluetooth indicator disappears on turning off bluetooth, but this workaround appear to be worked for 13.04 user only.

A:

Just solved this issue by reinstalling blueman (bluetooth manager) and some rfkill tweak, now the bluetooth applet should be reappear:
sudo apt-get install --reinstall blueman

