If you have an Acer monitor, you may have noticed that there is an on screen display (OSD) locked icon on the front of the monitor. This icon indicates that the OSD is locked and you will not be able to make any changes to the settings of the monitor. In order to unlock the OSD, you will need to press and hold the menu button for about 15 seconds. After you have held the button for 15 seconds, the OSD will unlock and you will be able to make changes to the settings of the monitor.
If you have any questions about this process or if you need help unlocking the OSD on your Acer monitor, please contact our support team for assistance.