Originally Posted by
FFred
Yes it works, but you can have a bug that make it failed, and if it's the case, don't touch anything on the computer, unplug the USB cable, then plug it again 30s later, the update will start again by itself and will go through this time.
The other option is too leave the box with the V3 software on it, and just keep a copy of the V2.1 software on the computer.. you can then program a 2.1 by using the box simply as a connection to the ESC. You just can't program the ESC by box alone.
HiH
Ed