can't create wifi with macbook pro

recently after i have bought my new mbp 13.3 released 2014 it recognized my wifi at home but then i attempted to update my operating system , but it fails , after rebooting i can't connect to the wifi the tool bar says wifi-no hardware installed, i have run hardware test, everything seems fine

i connected by ethernet , updatec to the latest OS , but the problem still exists. i have done every trick to fix the problem, i even contacted apple help desk but no good answer

please let's share this issue and solve it.