
To enter Recovery Mode, hold down the recovery button and press Power. Some devices do not support Esc + Power + Refresh for entering Recovery Mode: The option crossystem dev_default_boot=usb can be set to override the default boot behavior if no key combination is pressed for 30 seconds.On these devices, the number keys can be used to directly boot the numbered bootloader without going through the menu. 0 through 9: On newer (2019+) platforms, more than one alternative bootloader can be installed and Ctrl + L will show a selection menu.The option crossystem dev_boot_legacy=1 must be set from the command line before this option is available. New alternative bootloaders can be manually installed on the device from Developer Mode. Not all devices are shipped with alternative bootloaders. This may allow booting other Operating Systems more easily. Ctrl + L: Chain-load an alternative bootloader (e.g.The option crossystem dev_boot_usb=1 must be set from the command line before this option is available. Ctrl + U: Boot the system from an external USB stick or SD card.Ctrl + D: Boot the system from the internal disk.From the warning screen, the following keyboard shortcuts are available:.The screen will time out after 30 seconds, playing a warning beep.


Alt + Volume-Up is treated as the Magic SysRq key.EC hibernate is supported only on devices with select Embedded Controllers.AP = Application Processor EC = Embedded Controller.Left-Ctrl + Right-Ctrl + Search + (0 or 1 or 2) * Power + Refresh, hold down, remove power for 5 seconds

FunctionalityĬtrl + Alt + Shift + R from login screen * Shortcuts with an asterisk ( *) also work with tablets/detachables with a keyboard attached. When in doubt, assume debug shortcuts refer to the physical mapping of a US keyboard layout. Note that some of the below debug keyboard shortcuts are implemented at a very low level and are not keyboard-layout aware. See the official support page for non-debug keyboard shortcuts.
