| | net.rim.device.api.io.file.FileIOException: File system error
First check, whether the file exists in the Filesystem, you can check that through browser. just paste the file path in the browser(Alt+P) check the existance of the file, or you can see from explore also.
after that u need to check your application.
String filepath = "file:///store/home/user/filename.txt";
FileConnection conn = (FileConnection) Connector.open(filePath,Connector.READ_WRITE);
I think it will work fine , Hoep so :P