What you want to ask is face recognition attendance machine, Zhongkong Wisdom, who has set a password and can't enter the main menu interface? Restore the factory settings, restart the device and update the firmware.

1. Unable to enter the main menu interface through password, factory settings can be restored. There will be a reset button on the back or bottom of the device. Press and hold the button with a slender object (such as a toothpick) for a few seconds to restore the device to the initial setting state.

2. Sometimes the equipment has a temporary fault, and restarting the equipment can solve the problem. Disconnect the power supply of the equipment, wait for a while, then reconnect the power supply, and enter the password again to enter the main menu interface.

3. Check whether there are firmware updates available for the device. There are some problems or loopholes in the firmware of the device. Updating the firmware will fix these problems and restore the normal function of the device.