On the next screen, press Enter and then Ctrl + D again to confirm.You will see a screen with a warning message about Developer mode.While holding down Esc and Refresh, press the Power button.Press and hold the Esc and Refresh keys simultaneously.Here’s how you can enable Developer mode: Please note that enabling Developer mode will wipe all local data on your Chromebook, so be sure to back up any important files before proceeding. Enabling Developer mode on your Chromebook is the first step towards unlocking the full potential of your device.