[joshua99]

Thank you very much, will try to sort it later & let you know the result.
josh.

Just to make sure I get it right this time, these are the files on my sd card;
1. dd
2. fact. update param aml.
3. fact. update param ubt
4. sd bak ( out of uboot MX windows command)
5. spi MX bin
6. uboot MX. bin
7. uboot MX
8. uImage recovery.
9. update stvmx zip file.

Hopefully this is correct ? ? & if it goes to recovery do I flash the zip file first ?

1.Copy all files into SD card root directory

factory_update_param.aml
factory_update_param.ubt
spi_MX.bin
uboot_MX.bin
uImage_recovery
update_stvmx_20130805_eng.zip
uboot_MX.cmd
dd.exe

2.Run uboot_MX.cmd file on PC, it will pop up a window to remind you to continue, just press any button until it automatically exit.
3.Insert SD card into the box;
4.Press and hold the upgrade button, Short pins, plug in power adapter;
5.Hold the button for about 10 seconds, loosen upgrade button and wait about 1-2 minutes(screen has no display at this time),and then normally you will see robot screen;
6.It is updating the firmware, then wait about 2 mins.
7.After finished, the box will restart automatically.
As soon as you see anything on screen release the shorting of the pins

NOTES:

1.Don't use USB disk,only can use SD/TF card.
2.Don't unplug the power in all process until the upgrade is complete.

Great, but I'm a bit concerned about the extra file "SD BAK" which is not in your list but no.4 in mine
thanks. Josh.