Thank you for your interest in upgrading to an HD Slingbox. However, we do not have a program where you can upgrade from a Solo to a PRO-HD. We do have an upgrade program where you can get $30 off a Slingbox 350 or a Slingbox 500 if you already own a previous model. You can get more information and upgrade to one of the Slingbox's by following the links below.
If you have any further questions please feel free to reply.
Sling media Moderation Team