Hello,
i've replaced my faceplate before 3 hours and i found that my media card doesnt work at all. A message pop up "Media Card can not be accessed due to fatal errors". I went to Options -> Memory -> Format, Repair but it gives me back:
"Media card Repair/Format Failed"
I connected the device with my laptop and click OK for mass storage but it doenst appear in My Computer...

Can u give me advises how to fix this because i've tried everything came up in my mind... thank u

Get a Card Reader.
Take the card out of the phone and put it in the card reader.
Connect the card reader to the computer.
Backup the contents of the card to the computer.
Reformat the card on the computer.
Copy the contents of the card back onto the card.
Put the card back in the phone.