Open battery cover → Press → Tap card(s) on sensor sequentially → Press [Registration] . Lock Mode
Leo Kim, the post explained, had been a junior firmware engineer on the SHS-2920 project in 2015. The lock was discontinued in 2018, its English manual lost when Samsung’s legacy server farm was decommissioned. Leo, however, had kept everything. His blog was a digital tomb for forgotten hardware. --- Samsung Shs-2920 English Manual Pdf
You can view or download the English manual through the following verified document hosts: Kinglock (Direct PDF) Open battery cover → Press → Tap card(s)
Warning: This erases all codes and tags. Only the mechanical key will work until a new Master Code is set. the post explained