Apple - Microphone / Headphones combo port does not work in BootCamp

Not sure if people are still having a problem with this as it's been almost a year, but I was running into this problem with my Mac mini 2014 with Windows 10 Home and Bootcamp v6.0. The sound card is Cirrus Logic CS4208 (AB 108), and I couldn't get Windows to recognize the mic on my headset which was designed for iPhone/Apple usage.

After not being able to find the driver for the CS4208 (AB 108) at a legitimate site on the net (results almost always required a 3rd party driver downloader - no thanks!), I went to Cirrus Logic's website and tried to search for another driver. I was able to find CS4207 from their website, downloaded the zip file, and tried to update the CS4208 driver with files on this zip. The driver was taken, and, after a restart, the microphone now showed up (even though it was still showing CS4208 AB 108). It works!

I even rolled back the driver and updated again to confirm it works, and it sure does! I also have another 2016 MBP that I would like to test. Will update here after.

Here's a few screenshots before the driver update to CS4207:

And after updating the drivers and restart:

This worked for me. It was a Windows privacy issue: https://www.youtube.com/watch?v=ZssiZtyKaNk

You can test by recording your voice with the Voice Recorder Application. Give it permissions from Settings > Privacy Settings > Microphone. Also make sure Windows has permissions to use the microphone.

If people are still having this issue in 2019 and have USB-C ports on their Mac, Apple's USB-C to 3.5mm adapter seems to fix this issue. While it doesn't work on macOS, it certainly allow you to use the microphone on Apple Earpods (and the in-line controls) and other headsets. The adapter is $9 in US and is mainly for iPad Pro 2018. I hope this helps, as it works perfectly for me!

Or if you have an Xbox one controller with a 3.5mm jack (I'm not sure about ps4 controllers) you can use that as a USB sound card