I have the exact same issue. Been searching for a solution since some months ago, but no luck so far. Most threads I've seen suggest it's a hardware problem with BCM4356 chip.
Hello everyone. I recently got an unpatched unit with neither bluetooth nor wifi working, it can't find any wifi network and joycons can´t sync wirelessly (neither in Sysnand nor emunand). I've tried several solutions, even a hard reset (with Haku33). Some posts suggest it may be a hardware...