Can you give a more detailed description of "corrupt"? There are a lot of helpful people here but we would need to have some idea of what proplems you are facing
Also, what device are you using?
My device is a Nokia n900 with Maemo 5, i try to flash the firmware and the emmc but the file storage say memory card format unsuported, I can't acces to MyDocs folder, send messages, and takes photos