Hi David,
Thanks for the suggestion. i took a look at it, but it seems like it requires opening the TPCast hardware and flashing an SD card. I'm not sure I'm comfortable voiding the warranty and getting that involved in it. It's a shame that TPCast hasn't added this support themselves. The mic is pretty critical for a lot of VR experiences. It's good to know that it's a solvable problem, though. Gives some reason for optimism that they will, in fact, deploy a fix eventually.