Changing a Read Only attribute on a file

public bool UpdateResFile(string fileName, string language, string objectName, string NewValue)
{
    FileInfo fi = new FileInfo(fileName);
    try
    {
        //Do Stuff
        xDoc.Save(fileToUpdate);
    }
    catch (UnauthorizedAccessException)
    {
        //fi.IsReadOnly = false;
        File.SetAttributes(fileName, FileAttributes.Normal);
        //fi.Attributes -= FileAttributes.ReadOnly;
        return UpdateResFile(fileName, language, objectName, NewValue);
    }
    catch (System.Exception ex)
    {
        Console.WriteLine(ex.Message);
        return false;
    }
    return true;
}