OK! you have got New Oneplus One , A device with high end configuration that can compete with other branded high end smartphones out there.But still you are disappointed that you were not able to talk with your friends & relatives using headset, you might be really annoyed because of this .Your Headset might have worked properly as it supposed to be when you hear songs . But if your headset is connected while making a call you can only hear the voice of the person who is speaking on other side but they will not be able to hear you unless or until you put in speaker mode or remove the headset.If you are the one facing this issue then this is the post for you. And don’t think you’re the only person who got fed up with this Oneplus one mic issue , there are many out there and I am one among you. The solution is simple and its just a one minute of work to Fix your Oneplus One Mic issue while talking . Just follow the below steps As soon as you plug-in your headset the first thing you’ll notice is TTY Notification Icon at the Notification bar. The TTY abbreviation stands for teletypewriter, a device that allows deaf or hearing-impaired individuals to communicate via the telephone by typing text messages.So Now because of this TTY Feature it is stopping the user on the other side from hearing us.
Step 3 :
Step 4 :
Disable TTY Mode By selecting Off in the POP UP Menu >> By default it will be ON which is why you used to see TTY mode when we connect to the Headset . After Disabling you will not see TTY icon anymore and you are all set now
Now Plug-in Your Headset and Your Oneplus One MIC will work while talking
If You have updated to Latest Cyanogen 12( Lolly Pop ) or Oxygen OS then refer the below pics to change the settings
Even after doing this trick if it doesn’t work for you then you can try root your phone and follow the tutorials displayed in XDA Forum as well as in OnePlus One Official Forum Share your views in the Comments