[coreboot] Chromebooks overview

Stefan Reinauer stefan.reinauer at coreboot.org
Tue Jun 11 22:50:27 CEST 2013

* Tim Zander <t.zander at uea.ac.uk> [130611 02:50]:
> Hardware Preparation
>     Open the case
>         You'll now have to disassemble your device (which most
> likely voids your warranty).
>     Disable write protect
>         You'll have to locate the Write Protect jumper and enable it.
>         This will make the BIOS read-write so you can update it.
>         Once things have been updated, you can undo this so your
> BIOS is read-only again.
>     Reassemble the device
>         Now that you've done toggled the jumper, you need to
> reassemble the device and power it up.
>     Check the write protect
>         Run crossystem and look at the wpsw_cur field; it should be 0.
>     Plug your system in to be safe!
>         For the Chromebook laptop, make sure the battery is charged,
> and the power supply is connected.
>         For the Chromebox, try and plug it into a battery backup
> (UPS), and don't try this during a storm :).
> see
> http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/samsung-sandy-bridge
> for location of jumper			

Stumpy / Lumpy had a jumper. On the Pixel it's a screw next to the USB

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