How to configure UEFI to specify the SD card as a boot device

Hi,

I have tried to boot the android on the versatile express. I have created the SD card according the links： http://releases.linaro.org/13.01/android/images/vexpress-linaro-mp

Then I tried update the firmware according this links:http://releases.linaro.org/latest/openembedded/vexpress-lsk/#tabs-4

I set the two switchs to the off(just as both up) and I used the UART0.

Now I meet a question about how to configure UEFI to specify the SD card as a boot device. When I give it power ,it does not appear the boot selection menu as expected.

Could you give me some advices?

Look forward to your favourable reply.

duqi.