Android

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Revision as of 00:39, 2 January 2014 by Quozl (talk | contribs) (→‎Installing)
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Android is an operating system based on the Linux kernel, and designed primarily for touchscreen mobile devices such as smartphones and tablet computers.

Android 4.3.1 (Jelly Bean) for XO-4

OLPC is preparing an Android, Sugar and Gnome dual-boot system for the XO-4.

An early development release of an Android-only build is available. It is yet to be optimised for performance. In particular, the graphics are very slow.

The build is based on our arm-3.5 kernel, with changes which can be found in the arm-3.5-android branch of our olpc-kernel repository.

Installing

  • make a backup of anything you want to keep on the XO-4, because it will be erased by this test,
  • ensure the firmware is upgraded to Q7B37,
  • determine the size of the e•MMC internal storage; it will be either 4GB or 8GB, and is shown by the firmware just before the ok prompt,
  • download an .zd file, from our build directory; use a4g,zd on a 4GB XO-4, or a8g.zd on an 8GB XO-4,
  • at the ok prompt, type this:
fs-update u:\a4g.zd
  • when the installation completes, type this:
boot

Known problems

  • very slow screen response due to graphics driver needing work, to the point of being impractical,
  • the power button may not be operational, or may not operate in the fashion that Android devices normally provide,
  • Bluetooth is not operational,
  • USB may not be operational,
  • the touchpad is not implemented,
  • the ambient light sensor is not implemented,
  • the e-book switch is not implemented,
  • the microphone jack may not be operational,
  • the headphone jack may not be operational,
  • does not coexist with Sugar and Gnome,
  • does not automatically upgrade firmware to latest,
  • does not coexist with deployment security.

Do not rely on this build for any critical data.

See Also

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