He mentioned in case the car got accidentally flashed for example, you'd have a backup on hand.
He said he got the extra from FEMTO sent to him already for this car because they thought his original computer got lost in the mail, then he ended up with both. Does this sound legit?
Is there some more information about this? My understanding is that MT are only partial unlocks. Someone sold me a spare ECU for an MT that they said was already unlocked for the car (when I bought the car used). Are you saying there is no reason to have this backup? Why is that?