So after having spent a good weeks time on resolving the issue, I'm forced to resort to the forum in order to find the possible solution. Very sorry to see so many issues and threads with exactly the same problem on Dell and even more sorry as I was the one who approved the purchase of the Dell laptops for our whole company.

The issues is the following:

Until recently whenever I used to plug in the earbuds into the 3.5mm jack, all was fine. One day this just stopped. The earphones are working fine on two other laptops (one of them even being Dell), while 7300 still keeps using only the internal microphone. I am a frequent traveller and hate to lug around my USB headset and don't have a good relation with bluetooth headphones.

I have tried the following (results mostly found in previous threads on the topic):

1. Uninstalled the MaxxAudioPro
2. Uninstalled the drivers
3. Tried without drivers and saw no change
4. Reinstalled the drivers, no change again
5. Installed a new version of MaxxAudioPro, still no change
6. I repeated the process starting with step 1 two times so far

The only thing I still haven't tried is to do a complete re-installation of Windows 10.

 

 

Anyone have any other idea what could be done in this case, as this is starting to go on my nerves and seems to be quite a common problem (based on the threads dating from 2010 until today) which I ain't sure why Dell doesn't address?