Order a NEW door board, should be a 6300PA6, a 6300HL1 UIT and the 6” ribbon cable part #9863295. You can do it without the ribbon cable but it makes it a lot easier. The NEW door board will come with V2R24 generic software and has the profiles already loaded and accessible through a new menu called Config or something like that. So you can just plug it in, pick the right profile from the UIT, save to flash, do an autonull and a scan, turn it off, pull the UIT and keep it for the next time. You should be in business.