How to Reset a 7820N Password

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    • 1). Press the "Menu/Set" button, then press "181."

    • 2). Press the up or down arrow keys to scroll to the "Mem Security" option.

    • 3). Press the "Menu/Set" button.

    • 4). Type your old four-digit password using the dial pad and press "Menu/Set."

    • 5). Type the new four-digit password and press "Menu/Set." Type the new password in again if the LCD screen displays "Verify" and press "Menu/Set."

    • 6). Press "Stop/Exit" to return to the main menu.

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