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AEI DK-9830 is a digital access control keypad often used for securing doors. Changing the password (Master Code or User Code) is a straightforward process that involves entering programming mode using the factory or current Master Code. 1. Changing the Master Code
If you have lost the Master Code, you must use the jumper located on the back of the keypad unit. 1 Disconnect the power supply from the keypad. Power off. 2