No write up, just went off this post.
http://www.gearhead-efi.com/Fuel-Injection/showthread.php?4344-LS1-Flash-Chip-Programming&p=62481&viewfull=1#post62481

If you look @ .bin file ~4000 or ~6000...

I've got a Hakko soldering station, but it can be done with just a heat gun as well. I just prefer to solder.
I've fixed 3 LS controllers now, once for me, 2 for other folks. So far so good all...

0411 cal-flash failed, not sure why, have never had it happen before. Zero communication, unable to detect the controller.
It was like it wasn't even powered on.
Bought myself a new programmer and...