VKB-SIM

I have a problem where the button tester lights up green when testing each button. Button number 30 use to light up green and now doesn't, nothing happens. The things is, when I press that mini stick the red light blinks on and then off when I press it again. It shows that it is working on stick but doesn't show on Vkb button tester.

If you recently reflashed your stick you need to press the Default button after flashing, then recalibrate.

I've done this twice and the number 30 button does not show green when pressing it.

The center press button on the A1 ministick is by default only a swap button from POV mode to axes mode and back. If you want to assign a button to it then run VKBDevCfg, navigate to Profile/Buttons/Physical Layer and click on the blue cell labeled uSSw (1). In the new box change its function to TempoB (2), click on its logical representation cell (3) and redirect it to button 30 (4). Close the window (5) and press the Set button (6) to save changes to your profile.
You'll have to save this profile locally and load it up after each reflashing or do the same changes after you reflash the joystick.

More about the ministick.