Lenovo T420 Microphone Jack problem or skype not picking T420 Microphone Jack / Lenovo t420 micrphone jack
I've always heard people saying that Lenovo T420 is missing a microphone jack when compared to its predecessor like lenovo T500 which had two ports at the front for both Audio and Microphone Jack.
To resolve the issue with microphone jack in Lenovo T420 try the following solutions ...
1) If there is a problem with your Lenovo T420, update your conexant audio driver features using Matrix of drivers provided in Lenovo portal here.
3) If you still have problem with your T420 microphone Jack after trying above steps 1 and 2 , try inserting a mobile headphone which has single port into your Lenovo T420 audio port given at the right side of your T420 laptop as shown.
Drivers Installation didn't work for me so, I've tried with my Motorola headset and it works great as a microphone jack for my Lenovo T420 Laptop.
Given below is the audio port of Lenovo T420 where you can try with your mobile headphone with single Port.You may now have voice and video calls with Skype and Gtalk using your Microphone jack in Lenovo T420.