MIC problem in NOKIA E90

[andrewson00]

Plz help me to repair my nokia e90

Im from chennai.

my phone fell down and my mic didnt work.
but phone works well.
Then i didnt use it and switchoff.After few weeks i try to switch it on but it doesnt get on.

i get it to nokia care they told me mic costs around 4000 at first

then they told its necessary to change a chip and it costs around 8000rs then only ur phone switch on.

plzhelp me how much a mic costs?

Plz notify it to my mail andrewson00@gmail.com