I am glad I found this section, I have a problem with my Optic 6 that is driving my batty.

It has happened to me twice, but the second time I could not get the problem to clear. The first time about six weeks ago my #1 model memory just disappeared and would not recover. After playing around with it for awhile in the field, I cleared the memory and started over (pain), when I went to set it up again, at the menu screen for A/C type, I remember seeing that the radio switched itself to HELI mode before I cleared it, that is why the A/C settings went to hell.

Fast forward to yesterday, (10-12 hours of use) the #1 memory blanks out again. This time I check and sure enough it is back in HELI mode, problem is it will not switch back to ACGL mode no matter what I do or how I try to save it. Switch to a different menu, turn it off, back to HELI mode it goes.

#4 memory is the same, but the others are just fine and are working normally.

Any Ideas or suggestion?