Kenomac, it may be too late now, but here's a video of me resetting the ST60+ and a photo
of the procedure I use.
FWIW, you'll notice that 12 seconds is a long time to wait for the DLR code to appear, particularly when there are a few seductive beeps before it appears that will temp you to let go.
You'll also notice that it takes me two tries to get to the UC1 screen
using VMG + TACK. I seem to remember this being a consistent issue.
Please excuse the fingernails, I've been working below the waterline today, cleaning
the log sender that I forgot to remove after the last sail.