p124:"Hold the key down to maintain the display."
a) This is not a clear instruction: what key? This an aside comment because it could be made more clear the first time that it is referenced, as it is later in the manual.
b)
DOES NOT WORK FOR ME
I must release both the f and (i) keys, then the Im part displays briefly. It doesn't matter in what order I release the keys; the effect is the same both ways.
DO I HAVE A DEFECTIVE UNIT, or is this simply a document error? It seems to be a firmware issue.
The original 15C works like this:
Press f, then (i). Release the f key and hold the (i) key to maintain the display of the Im part.
I assume that the 15C LE is supposed to act exactly like the original 15C.
I don't know the firmware version. CNA21102WB.