Here is how to Change default master code

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Note: Before you start Programming the AT10/AT1 series lock, ensure that you change the master code before you start programming the AT10/AT1 series lock.

How to change master code

1. The first thing you are going to do is to press the “SOLITY” button two (2) times. The “SOLITY” button will display a still blue light.
2. Then the next step is to enter the default master code which is the number “12345678”.
3. After that you will press the “SOLITY” button one (1) time, a still green light will be on the “SOLITY” button.
4. You are then going to select the button number one (1), once selected the “SOLITY” button will flash one (1) time with the green light.
5. At this time you are going to create a six - eight (6-8) digits master code that you will always remember.
6. Next, you are going to press the “SOLITY” button after creating your master code, it will flash with a green light one (1) time
7. Now you are going to enter the master code you have just created.
8. Finally, press the “SOLITY” button, it will flash with a green light one (1) time and then you have successfully changed your master code.

         Written on 04/06/2026