Inspiron 15 7000 Series 7559 - built in microphone broke after one year - fix?

Hi everybody,

my warranty expired in January and since then i had only problems. The most recent is that my Microphone doesn't work depending on the angle of the laptop screen!  I'm guessing that some contact or cable is broken. Does anybody have an idea how to fix it / whats the best way to access the damaged cable?

Thanks in advance!

Most expensive laptop i ever had, worst build quality i ever had, most problems i ever had. I am very disappointed in Dell.