I updated to 10.13.5, lost Bluetooth. I "reset" the module, trashed the BT preferences, nothing worked. Help?
MacBook Pro with Retina display, macOS High Sierra (10.13.5), iPad Pro 9.7, Watch 42mm, iPhone X
I have unplugged all cables from my laptop (external video, power cable etc.) and shutdown it for 10 minutes. After starting it up again, bluetooth was available again.
Note that rebooting or shutting down for 1-2 minutes didn't help me.
Good luck!
I had to plug lightning cable from iMac into my wireless keyboard, then mouse, before they responded. Update had stalled, so I restored from Time Machine to previous OS version. Concerned about retrying update to be honest
I had the EXACT same issue that you have now. I had to “zap” my Bluetooth module & “zap” my PRAM too to get the Bluetooth working fully again. I’ve been an Apple Computer / Apple Inc user since 1980. Apple ][ to Apple Macintosh. The quality control just isn’t there anymore with Apple. They send out Beta software too often now, calling it Gold Master ready. Hardly. Steve Jobs and Steve Wozniak would NEVER let such messy not ready for prime time items out of the nest. Cook is getting very sloppy.
I have this problem too on my MAC BOOK PRO Mid 2015 on 10.13.5
I was speaking with Apple Support, we made all restets, all test and diagnostic and from hardware everything is fine.
The last what i should do is reinstalling system, if it will not help they told me to reinstall system on Clean disc.
If it will not help go to service :/
Make a genius bar appointment to have your machine evaluated.
It has to be a bug in the firmware that effects (primarily at least) the 2015 chipset. Nearly everyone on here who has had a total loss of bluetooth (not partial, not recoverable etc) has the 2015 chipset.
I have done SMC reset, PRAM reset, NVRam reset, blatted the pref file, debug and reset BT module, shutdown and waited 10 mins, time machined back to an earlier backup, formatted and installed 10.13.4 from USB, formatted and installed 10.13.5 from internet recovery, run diagnostics with all ok, and a number of other things including speaking to apple 3 times and nothing has worked so far.
I'm running a 2.2ghz interl core i7 16gb DDR3 1600 Mhz RAM, mid 2015 retina 15 inch matchbook pro, MacOS 10.13.5, with the following showing for BT - apple BT software 6.0.6.f2, firmware version v5 c4096, vendor ID 0x0A5C, product ID 0x21FF, HCI Version 4.1 (0x7).
I'd be interested if others having the same problem have similar set-ups - i.e. is this effecting a specific chipset, model etc.
I am in the exact same situation! I update to 10.13.5 and after a restart, the BT is on with Off button greyed out! But it is not on as you can't connect to anything.
I have tested all the usual suspects:
So I had to restore by my Time Machine cause as annoying it is to not have BT and connect stuff by cable, I still need my files and apps.
I updated to 10.13.5 on my 2012 Macbook Pro with Retina (first generation) and it worked. But on my iMac 5k (mid 2015) it did not! I don't know what's going on.
My iMac is pro 5k and the MacBook Pro is also with retina display. However, my MacBook Pro with retina display which is very old now (mid-2012) updated with no problem in BT.
One thing I have noticed was the year of manufacturing, 2015! I have seen few 2015 here which nothing has solved their problem with BT.
I remove everything with fresh High Sierra 10.13.5 and nothing! I left my iMac turned off for hours with nothing plugged, still nothing.
I am hoping a new minor update comes fast. The next version is in beta with no mention of BT:
Not quite. If the 10.13.5 update upgraded the bluetooth firmware as part of the process, it is very likely that the rollback to 10.13.4 (or any other) didn't unroll that version of the firmware. And if the new firmware is where the bug is (just an assumption), they that would lead to exactly this.
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.
One does not. A mouse is required for macOS recovery and restoring a time machine backup. However be aware that's unlikely to fix the issue and you should run hardware diagnostics before wasting your time.
BT loss seems to have happened to me too – update installation stalls at screens suggesting I need to switch wireless keyboard and wireless mouse on (they’re both already on). Problem is I don’t have a wired mouse/keyboard in the house. Software updates from Apple used to be sooo smooth. Not these days…
Yes seems unlikely doesn't it. Though it also seems unlikely that quite a number of people's hardware would develop a bluetooth hardware fault immediately after installing 10.13.5.
Has anyone out there had their hardware repaired by Apple re this occurrence?
I just did the update this morning 6/10/18 and upon reboot my bluetooth mouse / keyboard are not working. I tried resetting the SMC to no avail. Everything was working fine before the update. I cannot even open the bluetooth settings under system preferences... mouse icon spins and does nothing until I force quit the sys preferences. Upon reboot, the mouse works for about 2 seconds and then stops. Repeat the process. If I only used the trackpad I might never even noticed the issue.
FYI:
Updated to 10.13.5, lost Bluetooth
