It is highly recommended to change the default master PIN immediately after a reset to ensure security. SHS-P718 - How to perform a factory reset
If you no longer have the master code and the reset fails, you may need to contact or a local locksmith for service. samsung shs-p718 factory reset
Physically pull the door handle so the door is ajar. Prop it open with a doorstop or your knee. It is highly recommended to change the default