--- title: "audible feedback missing when the C Button is pressed on a keypad lock" slug: "no-audible-feedback-when-the-c-button-is-pressed" description: "Experiencing no beeps when pressing the C button? Your Digilock may be in Sleep Mode, have low batteries, or the front/rear units may need reconnecting" updated: 2025-07-29T14:44:26Z published: 2025-07-29T14:44:26Z canonical: "support.digilock.com/no-audible-feedback-when-the-c-button-is-pressed" --- > ## Documentation Index > Fetch the complete documentation index at: https://support.digilock.com/llms.txt > Use this file to discover all available pages before exploring further. # No audible feedback when the C Button is pressed on a keypad lock There are two primary reasons that may cause a keypad lock to become unresponsive. ### Deadbolt, Deadlatch, and Cam keypad locks The keypad lock may be in "Sleep Mode" or the batteries may need to be replaced. For immediate access, override with a valid Manager Key. - For Shared Use override instructions, go to [Override a Shared Use lock with a Manager Key](/v1/docs/how-to-override-a-keypad-lock#override-with-a-manager-key). - For Assigned Use override instructions, go to [Override an Assigned Use lock with a Manager Key](https://digilock.us.document360.io/docs/how-to-override-a-keypad-lock#override-with-a-manager-key1). --- ### Deadbolt and Deadlatch keypad locks The front unit may not be properly connected to the rear unit. Remove the keypad lock from the door and check the connection. ![5G-rearunit-deadbolt-highlight-02](https://cdn.us.document360.io/43e2fe2d-295f-490f-80b5-6c5ccfc382bb/Images/Documentation/5G-rearunit-deadbolt-highlight-02.png?sv=2026-02-06&spr=https&st=2026-11-10T16%3A31%3A26Z&se=2026-11-10T17%3A31%3A26Z&sr=c&sp=r&sig=WtvfwkAVXCenfrH7078ZDAm1POOCFtHvZqqcBNE%2BO8U%3D) A solid, motor-driven bolt that extends into the locker frame. ![5G-rearunit-deadlatch-highlight-02](https://cdn.us.document360.io/43e2fe2d-295f-490f-80b5-6c5ccfc382bb/Images/Documentation/5G-rearunit-deadlatch-highlight-02.png?sv=2026-02-06&spr=https&st=2026-11-10T16%3A31%3A26Z&se=2026-11-10T17%3A31%3A26Z&sr=c&sp=r&sig=WtvfwkAVXCenfrH7078ZDAm1POOCFtHvZqqcBNE%2BO8U%3D) A spring-loaded bolt that automatically secures when the door closes. It requires a valid credential to open but doesn’t need manual locking. ![rearunit-cam-highlight](https://cdn.us.document360.io/43e2fe2d-295f-490f-80b5-6c5ccfc382bb/Images/Documentation/rearunit-cam-highlight.png?sv=2026-02-06&spr=https&st=2026-11-10T16%3A31%3A26Z&se=2026-11-10T17%3A31%3A26Z&sr=c&sp=r&sig=WtvfwkAVXCenfrH7078ZDAm1POOCFtHvZqqcBNE%2BO8U%3D) A rotating metal piece that engages or disengages the lock when turned. Locks with a Cam have a knob or handle to manually rotate the mechanism. Note: A flat cam is shown for illustrative purposes. ![Manager Key](https://cdn.us.document360.io/43e2fe2d-295f-490f-80b5-6c5ccfc382bb/Images/Documentation/key_manager-01.png?sv=2026-02-06&spr=https&st=2026-11-10T16%3A31%3A26Z&se=2026-11-10T17%3A31%3A26Z&sr=c&sp=r&sig=WtvfwkAVXCenfrH7078ZDAm1POOCFtHvZqqcBNE%2BO8U%3D) - Overrides user access - Allows management inspection - Provides external power - Sets lock functionality if applicable (lock must be a keypad with a Deadbolt) Pressing the Key Button on the keypad will make **the LED flash red**. Shared Use is perfect for environments where multiple users need temporary access. A code, or key allows anyone to use the unit, and once unlocked is available for the next user. Locks configured in Shared Use may feature either a deadbolt or cam locking mechanism. Pressing the Key Button on the keypad will make the LED flash green. Assigned Use is ideal for personal or dedicated access, where a specific individual or group is given a unique code or key to open a designated unit. The unit remains locked until the assigned user unlocks it using their credential. Assigned Use locks can be configured with a deadbolt, deadlatch, or cam. ## Related - [Battery Replacement](/battery-replacement.md) - [Replace Cam lock batteries](/replace-cam-lock-batteries.md) - [Replace Deadbolt or Deadlatch lock batteries](/replace-deadbolt-or-deadlatch-lock-batteries.md)