A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
For questions about Android apps in general. (If possible, use a specific application's tag instead.) Note that Development is off-topic here.)
For questions related to Google's official content store. Please note that questions related to publishing, registering, or otherwise interacting with the Play Store in a development capacity are off-…
For questions about the popular custom ROM. Also add a specific android-version tag for version-specific question.
For questions specifically about issues with WLAN network connectivity (via a wireless router) as opposed to questions related to cellular connections (2G/3G/4G, etc.).
For issues specific to the Android Debug Bridge (adb), a command-line tool to interact with Android devices and Emulator instances. See the full tag wiki for details and hints.
The process of gaining 'root' access to your device. Before asking how to root your device, please read the full tag wiki since it contains helpful information which might already answer your question…
For questions specific to Android 6.0 Marshmallow (Oct 2015) or newer
if you feel your question is specific to Android 4.4 -- the 9th publicly named Android release which debuted with the Nexus 5 in October 2013
Generic tag for Samsung devices. Use it only if a device tag is needed for a Samsung device, and there's not better matching tag. See the full tag-wiki for more details.
if you feel your question is specific to Android 5.0 -- the 10th publicly named Android release which debuted with the Nexus 6 and Nexus 9 in November 2014.
For questions specifically requiring root permissions. If your issue is about rooting your device, use the 'rooting' tag instead; for unrooting, use the 'unrooting' tag.
OS or application updates. Please make sure to use the tag closest matching your issue, use e.g. 'ota-update', 'application-autoupdate', or 'rom-flashing' if they are better fitting. See the full tag …
Built-in app for managing Contacts (names, phone numbers, addresses, e-mail). Some manufacturers offer their own customized version.
Questions related to Android Mobile notifications, which can be visual (alert in notification bar), sounds, vibration of device, or arrival of mobile notifications via SMS. If applicable, please use t…
when your question is truly specific to Ice Cream Sandwich.
if your issue is truly specific to the Samsung Galaxy S III (GT-i9300) device.
the process of writing a firmware image (and the root file-system) to the memory of an Android device
For more generic questions relating security issues. For specific issues having their own tags, please use those -- e.g. 'malware', 'antivirus', 'privacy', 'lost-phone'. Please see the full tag wiki f…
Questions related to Android Mobile Settings and Configuration.
for questions concerning the internal storage space on your device that can be used for installing applications and their associated data.
if you have issues with backups (of apps, settings, documents) on your Android device. As this is a quite generic tag, please use a more specific tag if applicable, for example 'nandroid'…
Android's recovery mode allows ROM flashing even if the device is currently unusable. Invoking it usually involves a key combination that is pressed when starting the device. These combinations differ…
an alternative to SMS messaging and is very similar to BlackBerry Messenger.
for issues with Android's lock screen (the one protecting your device from unauthorized/accidental use. If applicable, consider using a more specific tag, such as e.g. 'face-unlock', 'pat…
questions regarding connecting an Android device via USB to e.g. a computer's USB interface
for questions about synchronizing an Android device with "the Cloud" or simply with other devices. Please use the more specific tags if your issue is with e.g. 'ac…
For questions related to the external micro-SD card used by most Android devices to increase the amount of available storage. For the internal SD card, use 'internal-sd'. See the 'storage' tag wiki fo…
For questions related to batteries on Android devices. Questions about battery life should be tagged with [battery-life]
should only be used for questions generic to internal and external SDCards. Whenever possible, please use the more specific tags 'external-sd' and 'internal-sd'.
when your issue is specific to custom ROMs -- but first make sure that there's no more specific tag, as e.g. for 'cyanogenmod' or 'darky-rom'. See the full tag wiki for more details.
A factory reset results in a full reset of an Android device to the original settings of the currently-installed ROM.
The version of Android after 4.0.x (Ice Cream Sandwich) in the Android version sequence. Please only use this tag if your question specifically pertains to Jelly Bean and its features.
if your issue is *specific* to any variant of the Samsung Galaxy S II (GT-I9100).