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== Known Problems ==
== Known Problems ==


[[image:Nl3-cn7-in-45-45.jpg|thumb|right|Battery cable plugged in]]
* in rare circumstances, a laptop may become unresponsive due to electrostatic discharge, and will not turn on or show the boot menu using the f5 key. The laptop may be recovered by a technician removing the battery cable for a minute.


* in rare circumstances, a laptop may become unresponsive due to electrostatic discharge, and will not turn on or show the boot menu using the f5 key. The laptop may be recovered by a technician removing the battery cable for a minute.
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== Disassembly ==
== Disassembly ==



Latest revision as of 04:22, 14 June 2017

SKU400 1NL30000051

  • first manufactured October 2016,
  • pre-installed operating system Endless 2.6.7,
  • 4 GB RAM,
  • other specifications as below.

SKU400 1NL30000046

  • first manufactured October 2016,
  • pre-installed operating system 16.04.2 based on Ubuntu 16.04 LTS with Unity desktop,
  • pre-installed desktop Sugar 0.109 with OLPC customisations and 39 activities,
  • 2 GB RAM,
  • other specifications as below.

SKU400 1NL30000042

  • first manufactured July 2016,
  • quad-core N2940 CPU at 1.83 GHz,
  • 32 GB solid state disk,
  • 4 GB RAM,
  • IEEE 802.11abgn1x1 wireless (rtl8821ae),
  • English grid keyboard,
  • US brick charger,
  • LiPoly battery,
  • pre-installed operating system 16.04.1 based on Ubuntu 16.04 LTS with Unity desktop,
  • pre-installed alternate desktop Sugar 0.108 with OLPC customisations and 40 activities.

Comparison with XO-4

  • much faster CPU, with cooling fan,
  • much faster and larger disk,
  • double the memory,
  • much faster wireless.

Solar Power

  • the laptop does not contain a maximum power point tracking converter,
  • a DC/DC converter to 19V is required,
  • the converter must be chosen according to your system voltage and number of laptops to be connected.

Known Problems

Battery cable plugged in
  • in rare circumstances, a laptop may become unresponsive due to electrostatic discharge, and will not turn on or show the boot menu using the f5 key. The laptop may be recovered by a technician removing the battery cable for a minute.


Disassembly

  • at an electrostatic protected workstation, remove 11 screws from the underside (two are under the rear feet), and pry open slowly from the rear edge. Plastic case latches are at a distance of between 15mm and 45mm.

References