Explaining the software upgrade process and its improvements for - TopicsExpress

Explaining the software upgrade process and its improvements for Android™ 4.3 Yesterday was a big day for all Android fans, as Google released the source code for Android 4.3. This means that manufacturers now are getting busy preparing software upgrades. From Sony’s side, you can already read about some of our software upgrade plans on the Sony Xperia News room blog. Software upgrades are an important asset for a device, and we are continuously working to improve the process and lead times. Learn more about how the process works, and what improvements you will see going forward in the full post. Read more after the jump! During our work with the Ice Cream Sandwich (ICS) software upgrade back in 2011, we made a post called Ice Cream Sandwich – from source code release to software upgrade, which explained the steps it took at the time to get the ICS software upgrade out to our users. But quite a few things have actually changed for the better since then. So in this post, we will share how that process has been further fine tuned in order to cut lead times, while keeping quality and stability intact on a top level. Overall, the software upgrade process consists of two main phases: the Bring up phase and the Test, certification and approval phase. During the Bring up phase, we make sure that the software works and is stable on our devices, and we also integrate new and existing Sony features on the new software. Compared to the ICS release, this work is now more efficient thanks to closer cooperation with Google and Qualcomm Technologies, Inc., which we write more about below. And because of our work with Android Open Source Project (AOSP) for Xperia devices, the feature upgrade part of the Bring up phase can now run in parallel to the initial bring up activities. We’ll tell you more about this further down under “Adding Sony features and applications“. Then in the Test, certification and approval phase, we make sure we comply with technology standards and regulatory requirements. This ensures that the software we roll out is tested thoroughly, and that it complies and works well with all technologies and components included on the device. Software upgrade Illustration showing activities from source code to software upgrade.

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