Updated to 10.13.5, lost Bluetooth

My Mac is now going into Apple to be reviewed by a tech on Tuesday :/

It's a waste of time! I removed my entire volume and install a fresh OS from the USB I made out of Mac Store. Exact same thing! Grey off button and nothing can be connected.

the-real-jphnycat IT WORKS !

I Shutdown my mac after work, not restart, not sleep. I get back home and I turn it on after maybe 2 hours and it works 🙂 My Bluetooth is alive!

Does this problem (in its persistent variant) only affect Macs with retina displays?

Thanks, I turned off and left unplugged all night but it still does not work. I try to reinstall 10.13.4. Another day of lost work.. 😟

Yes mine is also a 2015 edition (late 2015, 21.5", 4K)

So, then I updated my Mac and lost blutooth and now I (We) all must pay because of ther mistake!

Shame on you Apple!!!!!!!!

old thread.

sorry why old thread? Has a solution been found? I still don't..

This actually WORKED for me.... thanks for the suggestion

Same problem ... deleting .plist didn't help. Just fixed it on my MBP with a full NVRAM reset - it got all my Bluetooth devices back.

Nothing will work. It is a bug with the software update. Call Apple. It took us two days, but finally the issue went up to the Apple engineers who are working on a fix.

I did not know this was possible but apparently the software update did cause a hardware malfunction. Mine is getting send to Apple for a repair.

and are they paying for the repair or are you?