Now on startup, pressed Ctrl+L, got the BIOS screen instead of Chrome OS. Powered off the Chromebook by typing in 'sudo poweroff' Pressed Ctrl+Alt+F2 at the Chrome OS login screen.Īt the terminal prompt, type: sudo crossystem dev_boot_usb=1 dev_boot_legacy=1 Pressed Ctrl+D at the initial startup screen to load Chrome OS. I tried ESC+Refresh+Power key to Enable Developer Mode then I pressed CTRL+D then pressed Enter to turn off the OS verification. I removed the Write Protected Screw from the back of the Chromebook.
