Samsung Shs-1321 Factory Reset Jun 2026

This is the most common reason. If you are moving out of an apartment or selling your house, you must erase all existing user codes and RFID tags. You don't want the new owners—or the previous tenants—having access to your property. A factory reset ensures the lock is in "Out of Box" mode, ready for the new owners to register their own master PIN and cards.

If you have performed the hardware reset correctly and the lock still responds to old codes, your unit may have a hardware fault. In that case, contact Samsung customer support or a certified locksmith. samsung shs-1321 factory reset

Note on variations: On some SHS-1321 models, the process requires the door to be unlocked. If the door is currently locked, unlock it manually using the open button on the inside before pressing the reset pin. This is the most common reason

| Error Signal | Meaning | Solution | | :--- | :--- | :--- | | | Battery low | Replace batteries immediately. Reset may fail if this appears. | | 5 rapid beeps during reset | Reset button not held long enough | Repeat hardware reset. Hold button for a full 10 seconds. | | Green light, no motor sound | Deadbolt jam or misalignment | The lock thinks it’s unlocked. Manually turn the inside knob. | | Keypad lights, no beep | Frozen MCU (Microcontroller Unit) | Perform the “soft reset” (remove batteries + drain power). | | “Invalid PIN” on default 1234 | Hardware reset didn’t clear memory | Open the interior case. Look for a small “RESET” pinhole near the battery terminal. Press with a pin while inserting batteries. | A factory reset ensures the lock is in