Bowflex Selecttech Dumbbells "dentist" Questions

...by maybe two or three millimeters. The knob was between 52.5 and 5 lbs. Very frustrating. I used a dentist pick to push up the button which still would not release the pin. Finally I took the base

...https://www.facebook.com/Dentista-Online-Consulta-Odontologia-En-Linea-Dentist-Ask-Asnwer-Dentistry-120643201459073 ...