SeaComms is it ever really that easy..
The ProCal and the changes I have done just don't seem to like each other. My last JK had the same changes done to it which caused the ProCal to show a dash light flash 8-3 times and would not change any setting. Even to remove the VIN I got the same flash. As I was changing the axles and tyres over to my new JK it was ok as it was basically back to stock so when I sold it with the ProCal I explained to the guy that bought it it might not change anything but he didn't really care or understand.
Now here I am and after installing the different axle ratios/gear selections and tyre sizes I now have another 8 -3 flash on a BRAND NEW ProCal but the speedo is correct and the changes are working and no limp mode thank F. I actually called the local shop I purchased the unit through but they didn't really care or believe me as they thought the ration change would have left me in limp mode
But take it into Jeep and they flash it then I might not be so lucky.
Only option is to remove the ProCal from the VIN (if I can) and let them do what they need and then redo the ProCal flash when I pick it up if it has not gone into limp mode for them!