Study into the Implications of Smartphone Operating System Security

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Study into the implications of Smartphone operating system security forward. For devices purchased on Google Play, you can expect software updates to come directly from Google.” 46 In an attempt to obtain information on this process the report author called Google Play Device Technical Support. Unfortunately they were unable to explain the process or to make available any support documents that may have assisted a Nexus user in understanding more about the update process. There has also been debate on some mobile developer forums that in some cases the software update is not being delivered by Google themselves but by the hardware manufacturer. This has been reported with some Google Nexus devices manufactured by Samsung running in certain regions. 47 HOW IT WORKS There are two major ways in which a Nexus device is able to perform an operating system update: 1. Wirelessly using an FOTA process 2. Manually by downloading the factory image from the official Google Developers website Google will automatically push out operating system updates using an Over-The-Air (OTA) procedure to its Nexus range of smart mobile devices. If, for some reason, a Google OTA update fails to work or is not available on a particular model or through a certain mobile network then there is a manual method to download and install the updates software. The manual method is not a recommend approach for Nexus owners who may not be technically proficient. This manual procedure does not come without an element of risk - If a Nexus owner does not follow the manual update procedures correctly than there is a possibility that the device may be ‘bricked’, e.g.it will no longer work and could become completely unusable. Factory images for Nexus devices are available from Google’s official developer website - https://developers.google.com/android/nexus/images#instructions. 46 http://support.google.com/googleplay/bin/answer.py?hl=en&answer=2589788 47 Not all GSM Galaxy Devices will be updated directly by Google: http://androidandme.com/2011/12/devices/not-all-gsm-galaxy-nexus-devices-will-be-updated-directlyby-google/ Goode Intelligence © 2013 P a g e | 53 www.goodeintelligence.com
Study into the implications of Smartphone operating system security SAMSUNG ANDROID DEVICES Samsung uses a personal computer (PC) program (available for both Windows and Mac PCs) called ‘Samsung Kies’ to manage Android operating system updates. Source: Samsung: Users are required to download the program to their PCs and then either physically connect the device to the PC or use an Android App, ‘Kies Air’ on the device itself to connect to the PC software using WiFi. Figure 2.4: Samsung Kies screenshot showing Android firmware update information Source: Samsung Goode Intelligence © 2013 P a g e | 54 www.goodeintelligence.com
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