Motorola has the v1.43 update tool on their website - unfortunately it has been "Temporarily Unavailable" for the last week that I have been trying to update my MPX 220.
Anyone know of another source for the update tool for v1.43 or why the Motorola tool is not working????
Here is the link:
http://direct.motorola.com/ENS/softwareupdate.asp#
Thanks