No it’s not in the manual but something that happens sometimes is the UIT won’t work after loading the correct job file. The solution is to load another copy of the file to _0f8000. The number before the .dat specifies what memory address to load the file so you’re just telling it to load the file to 2 different memory locations. I believe the _07c000 is in FLASH and the _0f8000 is in RAM but not 100% on that. You certainly don’t have to do the _0f8 file but I load all 5 files in 1 shot every time.