Brcm Bluetooth randomly won't work after boot up or wake from Sleep

[Andrw0830]

Hello everyone, wanted to post this as having an issue with my Broadcom Bluetooth adapter with Mojave. During boot up (especially during a cold boot), my laptop takes forever to boot Mojave and when it does, notice the Bluetooth adapter shows "Bluetooth Not Available" and you have the little line through the BT icon indicating it's not working. This will happen randomly when resuming from sleep as well.

Checked IORegistryExplorer shows the dreaded 2 entries for BCM20702A0 whenever this happens. I've tried the kernel boot argument to add the delay for the BrcmPatchRam2.kext to no avail. I've attached both a working copy of BT from my debug files and when this issue happens.

If someone could provide me options for getting BT working, I would appreciate it. Thanks.

 

[Andrw0830]

OK I got a verbose image of what is displayed when I boot up Mojave and have BT not work. Also since this happened when booting up, I grabbed another debug set of files so first two files were when I did a boot up and had BT work (debug_13609-working) and the one after sleep when BT stopped working (debug_31839-notworking).

 

[Andrw0830]

This issue is now fixed thanks to the work done by @GridH! His thread below hopefully will help other people having this issue.
[FIX] BCM94352z DW1560 BT lost after sleep