3 Battery Bluetooth Keyboard Suddenly Not Working

[MecPro]

Hi guys,

I suddenly turned on my MBP and my keyboard just wouldn't turn on. When I tried to remove it and then re-add it to the Bluetooth options, I get this message

WTF is going on?!

*yes, I have installed the last Aluminium keyboard firmware

 

[MecPro]

Any help ?

 

[quantum003]

Have you also done the MBP firmware and MBP's Bluetooth firmware updates?

 

[MecPro]

Have you also done the MBP firmware and MBP's Bluetooth firmware updates?

Yeah I am completely up-to-date

But what I did was remove the devices, trash the bluetooth preference file then restart, now it's working like a charm