Reply to Loading between FW versions?

After upgrading from firmware 1.2 to 1.3 there was an option on powering up the vci-100 to load the old firmware by holding one of the buttons on the upper left next to the pitch fader.

Is this still an option after flashing to firmware 1.4? If so how would I get it to boot up in a previous firmware version like 1.3?

The reason I ask is because there seem to be a lot of posts about bugs that occur in the vci-100 in post-1.4 firmware flashes. I'd like to upgrade but would also like the option to get back to 1.3 (works perfectly) if these 1.4 bugs rear their heads.