ISF Auto mode is an option in control cal that can be selected. If you don't send settings, it will not appear in the menu after your calabration/tweaks have been finished. I set up day/night for inputs 5,6,7. Then saw that only day and night were in the menu. Went back in and used all the settings from isf day for the isf auto, plus changed inteligent mode from a 0 to a 1. Then it appeared in my menu...and it is sweet!
Hint. If you go into control cal and have day mode inputs complete, and want a fast auto mode: (start control cal, and load part 2)

1 press power on
2 start calabration
3 select input
4 select day mode
5 refresh to fill the fields with the day settings
6 select auto mode (the fields will be there from the previous fill fields)
7 send all (all fields from the day settings will now be sent to auto)
7.5 select inteligent mode to 1

8 save

9 load part 1
10 select day mode
11 refresh
12 select auto mode
13 send all
14 go through gama 2 through 9 and send the -1 for each (the send all took care of gama 1
15 save
16 end cal
17 power off
If you want to quickly do another input, you can use the same way of populating fields, then selecting a different input, then send all. Only the gama 1 through 9 can not have this cut and paste type approach. Saved me a bunch of time though.
For anyone that wants to quantify the value of unlocking the isf's.
I broke in my 151 with the colours for maybe 50 hours, and watched tv for 2 weeks with this 50 hours of breakin between viewing. On day 1 I put the dnice settings in for sport for thumb drive breakin, and pure for viewing. Pure looked good right from the get go vs the original pure.
isf's with my half assed breakin is VERY GOOD

. My wife can tell in an a,b test of the same show between pure, and day mode. ISF settings are brighter, more 3d, unbelieveable texture, detail. I would call it a 20% better picture....AND I am being very analytical in this 20% value. Now not all sets may react the same, but I am 100% impressed, and if I had known just how good this was going to look (like if it were a trial, and I had to pay for a full time unlock...I'd put the value that I would pay post trial at 200 dollar ish.)
for 25 bucks, plus 50 for the cables....go ahead, then be amazed that your unbelieveable tv just got 20% better. the realism is...well i am speechless.
I'll post some pictures to show the difference between pure and day.
