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标题: [Tech] OTA Updates [打印本页]

作者: Hegde 时间: 2019-03-17 12:00
标题: [Tech] OTA Updates
Edited by Hegde at 2019-03-17 18:10

[strong]Firmware Over-The-Air[/strong] (FOTA) is a Mobile Software Management (MSM) technology in which the operating firmware of a mobile device is wirelessly upgraded and updated by its manufacturer. FOTA-capable phones download upgrades directly from the service provider.[br][br] (, 下载次数: 0) [br][br]Android devices in the field can receive and install over-the-air (OTA) updates to the system, application software, and time zone rules. This section describes the structure of update packages and the tools provided to build them. It is intended for developers who want to make OTA updates work on new Android devices and those who want to build update packages for released devices.[br][br]OTA updates are designed to upgrade the underlying operating system, the read-only apps installed on the system partition, and/or time zone rules; these updates do not affect applications installed by the user from Google Play.[br][br][br][strong]A/B (Seamless) system updates[/strong][br][br]Modern Android devices have two copies of each partition (A and B) and can apply an update to the currently unused partition while the system is running but idle. A/B devices do not need space to download the update package because they can apply the update as they read it from the network; this is known as streaming A/B. For more information about OTA updates for A/B devices. For a sample app that provides examples on using Android system update APIs (i.e., update_engine) to install A/B updates.[br][br] (, 下载次数: 0) [br][br][strong]Non-A/B system updates[/strong][br][br]Older Android devices have a dedicated recovery partition containing the software needed to unpack a downloaded update package and apply the update to the other partitions. [br][br][strong]Time zone rule updates[/strong][br][br]As of Android 8.1, OEMs can push updated time zone rules data to devices without requiring a system update. This mechanism enables users to receive timely updates (thus extending the useful lifetime of an Android device) and OEMs to test time zone updates independently of system image updates. [br][br]*********[br]Hi xfans,[br][br]Anybody find this information useful , please comment and share this thread . Thanks.{:16_24:}

作者: RAJUPILLAY2197 时间: 2019-03-17 12:04
Great information bro

作者: jk885884 时间: 2019-03-17 12:06
Good brother.. Thanks..

作者: V.Balaji 时间: 2019-03-17 12:13
Thanks for info

作者: dev0267 时间: 2019-03-17 12:19
thanks for information

作者: mitush 时间: 2019-03-17 12:54
Good share

作者: dr.gautam 时间: 2019-03-17 13:05
good share.

作者: shruthi3487 时间: 2019-03-17 13:33
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作者: nanaji 时间: 2019-03-17 13:40
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作者: Thinesh 时间: 2019-03-17 14:35
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作者: 6297613614 时间: 2019-03-17 14:51
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作者: dachyuth 时间: 2019-03-17 15:11
good information

作者: sdsd7228 时间: 2019-03-17 15:59
Good information NYC explanation

作者: RJCheman 时间: 2019-03-17 20:00
Good Information

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