A little background on the warnings. There are no specific sensors for them. They are issued by the computer when it detects a dangerous situation, which it use

A little background on the warnings. There are no specific sensors for them. They are issued by the computer when it detects a dangerous situation, which it uses a variety of inputs to determine. With unreliable airspeed and altitude (pitots tubes not working) the overspeed warning should have been ignored completely and the stall would have to be verified with other data if possible.