LG Chromebase 22CV241-W

Introduction

This page contains information about the Lenovo Chromebook N20 & N20P that is interesting and/or useful to software developers. For general information about getting started with developing on Chromium OS (the open-source version of the software on the Chrome Notebook), see the Chromium OS Developer Guide.

Specifications

  • Weight: 2.87 lbs
  • CPU: Haswell Intel Celeron Dual-Core 2955U
  • RAM: 2GiB DDR3 (1 upgradable slot)
  • Display: 21.51920x1080 16:9
  • Disk: 16GB SSD
  • I/O:
    • HDMI
    • 3 x USB 2.0
    • 1 x USB 3.0
    • Headphone/mic combo jack
    • Camera & mic
  • Connectivity:
    • WiFi: 802.11 a/b/g/n/ac
    • Bluetooth 4.0
    • 100/1000 Ethernet
  • Kensington Security Slot
  • Linux 3.8

Developer Mode

Caution: Modifications you make to the system are not supported by Google, may cause hardware, software or security issues and may void warranty.

Details for working with developer mode can be found on this page.

Firmware

This device uses coreboot to boot the system. You can find the source in the Chromium OS coreboot git tree in the firmware-monroe-4921.B branch.

What's inside?

WARNING: Opening the case and fiddling with the stuff inside could easily brick your system and make it unrecoverable.  DO NOT ATTEMPT if you are not familiar with this process. Really, just don't.

Disassembly

Taking apart your Chromebook is not encouraged.  If you have hardware troubles, please seek assistance first from an authorized center. There's nothing inside that you can fix yourself. Be advised that disassembly might void warranties or other obligations, so please consult any and all paperwork you received first.

Fine. If you must risk breaking it for good, at least do it the right way.

  • First, acquire the necessary tools:
    • A small Phillips head screw driver
    • A large Philips head screw driver
    • A spudger
  • Place the computer screen down on a flat surface
  • Pop the plastic cap with the cable holder off the back by pulling from the top
    • Remove the three exposed screws in the middle
    • Pull the stand off
  • Remove the one visible screw near the USB ports on the back
    • Pry the central plastic piece of carefully
    • Try flexing it and pulling from the bottom part
    • The spudger might help
  • Remove the three visible screws and detach the cables
  • Starting at the bottom, of the screen, there should be a plastic hole
    • Start prying apart the case from there using the spudger
    • Work all the way around the top
    • Pull the back off
  • Remove the visible screws from the metal bracket to expose the motherboard
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