Perform a hard reset

If you have difficulty updating your Chromebook, you may need to perform a hard reset by removing the battery, pushing a special reset button with a pin, or using a keyboard shortcut.

Pick your device from the list below for instructions.

Find the hard reset steps for your device

If your Chromebook isn’t shown, use the shortcut Refresh+Power.

Acer Chromebox

Remove and reinsert the power cable.

LG Chromebase

Remove and reinsert the power cable.

ASUS Chromebox

Remove and reinsert the power cable.

Acer AC700

Remove and reinsert the battery.

Cr-48

Remove and reinsert the battery.

Samsung Series 5

Press the hole circled in the image below with a paper clip or pin, then connect your AC adapter.

Samsung Series 5 550

Press the hole circled in the image below with a paper clip or pin, then connect your AC adapter.

Samsung Chromebox

Remove and reinsert the power cable.

If the above process doesn't resolve the issue, continue the recovery process.