My door has button that lock knob when close door. Locksmith

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My door has button that lock knob when close door. Locksmith showed me to unlock. Thought turned key all way to left-held-pushed door but not working? - Quora

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My door has button that lock knob when close door. Locksmith showed me to unlock. Thought turned key all way to left-held-pushed door but not working? - Quora