I can hear people on the other end just fine, they cannot hear me.
I've checked, and don't have the mute on; restarted several times, all to no avail. Any ideas?
The mic on my phone ( blue tooth ) in my car is not working how do I fix it
My microphone isn't working I'd like to fix without hard reset
My microphone isn't working would like to repair without hard reset
If the HTC One VX has a persistent problem that cannot be solved, you can perform a hard reset.
1. Slide the Notifications panel open, and then tap on Settings.
2. Tap Storage > Factory data reset.
3. Tap Reset phone, and then tap Erase everything.
You can find this information on page 167 and 168 of the user manual. If you don't have the manual yet, you can get it from the HTC One VX product page.