Android: Difference between revisions

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* make a backup of anything you want to keep on the XO-4, because it will be erased by this test,
* 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,
* ensure the firmware is [[Upgrading firmware|upgraded]] to Q7B37,
* determine the size of your eMMC internal storage; it will be either 4GB or 8GB, and is shown by the firmware just before the ok prompt,
* determine the size of your eMMC internal storage; it will be either 4GB or 8GB, and is shown by the firmware just before the ok prompt,
* download the corresponding .zd file, from [http://build.laptop.org/android/2013-12-20/ the build directory],
* download an .zd file, from [http://build.laptop.org/android/2013-12-20/ the build directory]; use a4g,zd on a 4GB XO-4, or a8g.zd on an 8GB XO-4,
* at the ok prompt, type this:
* at the ok prompt, type this:
fs-update u:\a4g.zd
fs-update u:\a4g.zd

Revision as of 21:43, 1 January 2014

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 your eMMC 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 the 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

Retrieved from "http://wiki.laptop.org/mediawiki/index.php?title=Android&oldid=294454"