To upgrade the firmware you do not need to send any commands. If the VDIP sees a new firmware it will upgrade to it. When a new firmware is "built" a three character ID is given to it. The ID is whar the VDIP looks at.

The firmware I gave you has NE1 as the ID. If the ID is the same the VDIP will return "No Upgrade".

Go down to post #19 here.
http://www.picbasic.co.uk/forum/show...3888#post83888