Originally Posted by
vilas
Amending Vapp in the MCDU is not a preferred method but the only method because GS mini is simply not available in select speed.
Unless below 700 ft RA, where MCDU has data lock. Any changes will be accepted as input but not taken into account. The other, non-preferred option of SEL SPD becomes the only option and GS mini is lost - if increase on the speed target is desired.