How to access bootloader mode, to update software FEZ Panda

NETMF & Gadgeteer
1

how to access boot loader mode to update system from SD card?



            if (SystemUpdate.GetMode() != SystemUpdate.SystemUpdateMode.Bootloader)
                throw new InvalidOperationException("We must be in bootloader mode!");


            PersistentStorage sd = new PersistentStorage("SD");
            sd.MountFileSystem();

            string fileName = "\\SD\\app.hex";

            FileStream file = new FileStream(fileName, FileMode.Open, FileAccess.Read);

            // start update
            SystemUpdate.ApplicationUpdate.Start();

            // read the file in chucks
            byte[] buffer = new byte[10 * 1024];
            int length;

            do
            {
                length = file.Read(buffer, 0, buffer.Length);
                SystemUpdate.ApplicationUpdate.Write(buffer, 0, length);

            } while (length == buffer.Length);

            file.Close();

            // End update
            SystemUpdate.ApplicationUpdate.End();

            // Access the application
            SystemUpdate.AccessApplication();