1：开机后进入时间设置界面，按ok键后，输入当前时间再按ok键确认时间并退出改模式。
如果输入不正确时间，则默认显示00:00:00，并请重新输入正确时间，然后按ok键确认时间并退出改模式。

2:在时间显示模式下，按任意键进入密码输入模式。

如果输入超级用户密码，超级用户密码正确，则指示灯亮，表示可以修改用户密码。此时输入自定义的用户密码，按ok键确认后，指示灯灭，表示用户密码修改成功。

密码锁矩阵键盘一般是用3*4键盘(after the start of the time to enter the interface, press OK key, input the current time and then press the OK key to confirm the time and exit the mode.
If the input is incorrect, the 00:00:00 is displayed by default, and please reenter the correct time, then press the OK key to confirm the time and exit the change mode.

2: in the time display mode, press any key into the password input mode.

If the superuser password is entered, the superuser's password is correct, then the light is indicated, indicating that the user password can be modified. At this time, enter the custom user password, after the OK key is confirmed, indicating the lights out, indicating that the user password has been modified successfully.

The password lock matrix keyboard is generally used as a 3*4 keyboard)