Lu, I think you are referring to an auto retraction problem which arose when one of the ADRs output an erroneous overspeed signal which brought the auto retraction feature into play at an innoportune time.
The MEL has been chnaged to state that whenever there is despatch with a fauly ADR, CONF 1+F should not be selected to avoid this problem. Auto retraction does not come into play with CONF 2 or 3 so those are still safe to use.
If the problem should happen, I think a possible course of action would be to select TOGA and select CONF 2 if you were at CONF 1+F.
Comments anyone?