How to download updates for android

Learn more. Get the latest updates from AndroidDevSummit and discover new features to help you succeed on our platform, including tools for trust and safety, app quality, and monetization. Developer Guides Find training classes that describe how to accomplish a specific task with code samples you can re-use in your app. The first time you open an APK file, you will be asked if you want to select a program to open the file with.

Tap Install. It's in the lower-right corner of the installation screen. This will install the app. After the app installs, it will launch. The first time the app launches, it will ask to access different features on your phone.

Tap "Allow" to let the app access the feature it is requesting. Method 3. Tap Apps Tap the app. Enable apps from unknown sources. In order to install an older version of an app, you must allow your phone to install apps from unknown sources. Use the following steps to allow apps from unknown sources: Open Settings app. Tap Lock screen and security. Tap the toggle switch next to "Unknown sources".

Open your downloads folder and tap the app your just downloaded. On many Android phones, this may be the "Downloads" app in your app drawer, or you might access downloads by tapping the "Files" or "My Files" app and then tapping the "Downloads" folder.

Located the APK file you downloaded and tap it. Shravan Kumar. It won't make much difference, and only for a short period of time. Not Helpful 0 Helpful 0. Not Helpful 3 Helpful 3. Include your email address to get a message when this question is answered. By using this service, some information may be shared with YouTube.

Installing apps from sources other than the Google Play Store may contain viruses, malware, or otherwise can harm your phone if installed improperly. Install APK files from unofficial sources at your own risk. Helpful 0 Not Helpful 0. Related wikiHows How to. How to. About This Article. Written by:. Co-authors: Updated: October 1, Categories: Android.

Article Summary X 1. Italiano: Disinstallare gli Aggiornamenti delle App su Android. Nederlands: Updates van apps verwijderen in Android. 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.

For a sample app that provides examples on using Android system update APIs i. 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. As of Android 8. 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.

For details, see Time Zone Rules. Content and code samples on this page are subject to the licenses described in the Content License. Docs Getting Started About. Core Topics Architecture.

Overview Architecture. Modular System Components. Modular Kernels. HIDL General. HIDL Java. Testing with TF. Through Tradefed. Through Suite. Developing TF. XML Configuration. Global Configuration.

Advanced Concepts. Device Manager. Device setup. Evaluating Performance. Feature Implementation. Dynamic Partitions. Users can continue to use their devices during an OTA—the only downtime during an update is when the device reboots into the updated disk partition. After an update, rebooting takes no longer than a regular reboot. If an OTA fails to apply for example, because of a bad flash , the user will not be affected.

The user will continue to run the old OS, and the client is free to re-attempt the update. If an OTA update is applied but fails to boot, the device will reboot back into the old partition and remains usable.

The client is free to re-attempt the update. The cache partition is no longer used to store OTA update packages, so there is no need to ensure that the cache partition is large enough for future updates. If a device doesn't boot due to a bad OTA or dm-verity issue, the device can reboot into an old image.

For OEMs supplying their own client, the client needs to: Decide when to take an update. To avoid disrupting users, it is recommended that updates are scheduled when the device is in idle maintenance mode, such as overnight, and on Wi-Fi. However, your client can use any heuristics you want. Check in with your OTA package servers and determine whether an update is available. Google's client also includes a Check now button for users to check for the latest update. The bootloader will fallback to the old OS if the new OS fails to boot, so no work is required from the client.

If the update fails, the client needs to decide when and whether to try again, based on the detailed error code. For example, a good client could recognize that a partial "diff" OTA package fails and try a full OTA package instead. Optionally, the client can: Show a notification asking the user to reboot. If you want to implement a policy where the user is encouraged to routinely update, then this notification can be added to your client. If the client does not prompt users, then users will get the update next time they reboot anyway.

Google's client has a per-update configurable delay. Show a notification telling users whether they booted into a new OS version or whether they were expected to do so but fell back to the old OS version.

Google's client typically does neither.