The Reader's Digest version for the novice... The experts most likely don't make these mistakes.
The curly phone cord must have four (4) wires. Some have 2 wires. LOOK CLOSELY. Took me 2 days to figure this out.
If your computer is having a difficult time using the TIU USB connection (FT232R USB UART) and finding a COM port connection on the DCS loader, go to Protosound2.com and download the Windows USB drivers.
- Windows USB Drivers For DCS Loader Program - March 8, 2016
I spent countless hours all day Sunday and today, messing with a windows machine running Windows 7 and a MAC running Windows XP performing all sorts of upgrades and running scripts which did nothing to help.
I'm sure for those that do this regularly, this is all second nature. But when you only upgrade once every 12-18 months, it can be hard to remember all the undocumented steps of what you did last time.