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Android 12 APK aus unbekannten Quellen installieren: Schritt-für-Schritt-Anleitung


How to Download and Install Android 12 on Your Device




Android 12 is the latest version of Google's mobile operating system, and it is seamlessly integrated with Google's app ecosystem. That means, out of the box, Android pairs perfectly with the likes of Gmail, Google Docs, Google Calendar, Google Photos and just about any of the apps offered within Google Workspaces, for business users.




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Android 12 has many new features and improvements, such as a redesigned user interface, enhanced privacy and security settings, better performance and battery life, and more. In this article, I will guide you through the steps to download and install Android 12 on your compatible device, as well as some of the risks and benefits of doing so. Let's get started!


What devices are compatible with Android 12?




Not all devices can run Android 12. The compatibility depends on various factors, such as the hardware specifications, the software support from the device manufacturer, and the availability of updates in your region.


Generally speaking, you can expect the Google Pixel 3 and later models to be compatible with Android 12, along with newer phones from Samsung, Huawei, LG, Nokia, Motorola, OnePlus, Oppo and other manufacturers. The website GetDroidTips has collected an extensive list of devices it expects will be compatible with Android 12 .


If you have a Pixel device or another phone that supports the Android Beta Program , you can also enroll in it to get early access to Android 12 before its official release.


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How to check your current Android version and security patch level?




Before you proceed with updating your device to Android 12, it is important to know what version of Android you are currently running and what security patch level you have. This will help you determine if you need to update or not.


To check your current Android version and security patch level:


  • Open your device's Settings app Scroll down and tap About phone or About device



  • Look for Android version and Android security patch level



The Android version will show you the name and number of the current version of Android that your device is running, such as Android 11 or Android 10. The Android security patch level will show you the date of the latest security update that your device has received, such as June 1, 2023 or May 5, 2023.


If your device is running an older version of Android or has an outdated security patch level, you may want to update it to Android 12 to enjoy the latest features and security enhancements.


Method 1: Over-the-air update




The easiest and most common way to update your device to Android 12 is to use the over-the-air (OTA) update method. This means that you can download and install the update directly from your device's settings, without needing a computer or any additional tools.


However, this method may not be available for all devices or regions, depending on the device manufacturer and carrier. You may also have to wait for some time before the update is rolled out to your device, as updates are usually released in batches.


How to check for and download the Android 12 update from your device settings?




To check for and download the Android 12 update from your device settings:


  • Open your device's Settings app Scroll down and tap System or Software update Tap Check for update or Download and install If the update is available, follow the on-screen instructions to download and install it If the update is not available, you may see a message saying that your device is up to date or that no updates are available. You can try again later or use another method to update your device



Note: The exact steps may vary depending on your device model and manufacturer. You may also need a Wi-Fi connection and enough battery power or a charger to complete the update.


How to back up your data before installing the update?




Before you install the Android 12 update, it is highly recommended that you back up your data, such as contacts, photos, videos, messages, apps, settings, etc. This will help you avoid losing any important information in case something goes wrong during or after the update.


To back up your data:


  • Open your device's Settings app Scroll down and tap System or Backup Tap Backup now or Back up to Google Drive Make sure that all the data categories that you want to back up are selected and synced You can also choose to back up your data to an external storage device, such as a USB drive or a microSD card, using a file manager app or a computer



Note: The exact steps may vary depending on your device model and manufacturer. You may also need a Google account and a Wi-Fi connection to back up your data to Google Drive.


How to troubleshoot any issues during or after the update?




Sometimes, you may encounter some issues during or after updating your device to Android 12, such as:


  • The update fails to download or install The device gets stuck in a boot loop or shows an error message The device becomes slow, unresponsive, or overheats The battery drains faster than usual or does not charge properly The apps crash, freeze, or do not work as expected The data gets corrupted, deleted, or inaccessible The network connection drops or becomes unstable The sound, camera, fingerprint scanner, or other features do not work properly



If you face any of these issues, you can try some of these troubleshooting steps:


  • Restart your device and try again Clear the cache partition of your device using the recovery mode Factory reset your device using the recovery mode (this will erase all your data, so make sure you have a backup) Contact your device manufacturer or carrier for further assistance



Note: The exact steps may vary depending on your device model and manufacturer. You can find more information on how to access the recovery mode and perform these steps on Google's support website or on your device's user manual.


Method 2: Sideload via recovery and ADB




If you cannot update your device to Android 12 using the OTA method, you can try sideloading it via recovery and ADB. This means that you can manually download the Android 12 OTA package for your device from Google's website and then transfer it to your computer. You will also need to enable USB debugging and OEM unlocking on your device, and install ADB and fastboot tools on your computer. Then, you can reboot your device into recovery mode and sideload the OTA package via ADB commands. How to download the Android 12 OTA package for your device from Google's website?




To download the Android 12 OTA package for your device from Google's website:


  • Go to the official Android OTA download page and find the OTA package that matches your device model and build number. Click on the link to download the OTA package to your computer. The file name should end with .zip. Save the file in an easily accessible location, such as the desktop or the same folder where you have installed the ADB and fastboot tools.



Note: The OTA packages are only available for Pixel devices and some other devices that support the Android Beta Program. If you have a different device, you may need to check with your device manufacturer or carrier for the OTA update availability.


How to enable USB debugging and OEM unlocking on your device?




To enable USB debugging and OEM unlocking on your device:


  • Open your device's Settings app Scroll down and tap About phone or About device Tap the Build number option seven times until you see the message You are now a developer. This will enable Developer options under Settings. Go back to Settings and scroll down to find Developer options Tap Developer options and scroll down to find USB debugging and OEM unlocking Tap the toggles to enable both USB debugging and OEM unlocking. You may need to confirm your screen lock or enter a PIN, password, or pattern to do so. You may also see a pop-up message asking you to allow USB debugging or OEM unlocking. Tap OK or Allow to grant permission.



Note: The exact steps may vary depending on your device model and manufacturer. You can find more information on how to enable USB debugging and OEM unlocking on various devices from these web search results .


How to install ADB and fastboot tools on your computer?




To install ADB and fastboot tools on your computer:


Download the latest platform tools (ADB and fastboot drivers) from Google from here . Extract the contents of the ZIP file into an easily accessible folder, such as C:\platform-tools. Add the folder where you have extracted the platform tools to your system's PATH environment variable. This will allow you to run ADB and fastboot commands from any location on your computer. To do this, follow these steps:


  • On Windows 10, right-click on the Start button and select System. On Windows 7 or 8, right-click on Computer and select Properties. Click on Advanced system settings on the left sidebar. Click on Environment Variables at the bottom of the System Properties window. In the System variables section, find and select the variable named Path and click on Edit. In the Edit environment variable window, click on New and type or paste the full path of the folder where you have extracted the platform tools, such as C:\platform-tools. Click OK to save the changes and close all the windows.



Note: The exact steps may vary depending on your operating system version. You can find more information on how to install ADB and fastboot tools on various operating systems from these web search results .


How to reboot your device into recovery mode and sideload the OTA package via ADB?




To reboot your device into recovery mode and sideload the OTA package via ADB:


  • Connect your device to your computer using a USB cable. Open a command prompt or terminal window on your computer. You can do this by pressing Windows + R keys on Windows, or Ctrl + Alt + T keys on Linux or Mac OS X. Type adb devices and press Enter. This will show you a list of devices connected to your computer via ADB. You should see your device's serial number along with the word "device". If you don't see your device listed, make sure that you have enabled USB debugging on your device, installed the correct drivers for your device, and granted permission for USB debugging on your device screen. If you see a message saying "unauthorized" next to your device's serial number, check your device screen and tap OK or Allow to authorize your computer for USB debugging. Type adb reboot recovery and press Enter. This will reboot your device into recovery mode. You should see an Android logo with a red exclamation mark on your device screen. Press and hold the Power button and then press the Volume up button once to enter the recovery menu. You should see a list of options such as "Reboot system now", "Apply update from ADB", "Wipe data/factory reset", etc. Use the Volume buttons to navigate to the option "Apply update from ADB" and press the Power button to select it. You should see a message saying "Now send the package you want to apply to the device with 'adb sideload '". On your computer, type adb sideload followed by the name of the OTA package file that you have downloaded, such as adb sideload pixel_5-ota-rp1a.201105.002.e1a8cda6.zip and press Enter. This will start transferring the OTA package from your computer to your device via ADB. Wait for the transfer and installation process to complete. You should see a progress bar on your device screen and a message saying "Install from ADB complete" on your computer. On your device, use the Volume buttons to navigate to the option "Reboot system now" and press the Power button to select it. This will reboot your device normally with Android 12 installed.



Note: The exact steps may vary depending on your device model and manufacturer. You can find more information on how to reboot into recovery mode and sideload OTA packages via ADB from these web search results .


Method 3: Flashing full factory image via fastboot




If you want to completely wipe your device and install a fresh copy of Android 12, you can use the fastboot method. This means that you can download the full factory image for your device from Google's website and then flash it to your device using fastboot commands.


However, this method is more complex and risky than the OTA or sideload methods, as it requires you to unlock your device's bootloader, which may void your warranty, erase all your data, and expose your device to security risks. You should only use this method if you are confident in what you are doing and have a backup of your data.


How to download the Android 12 factory image for your device from Google's website?




To download the Android 12 factory image for your device from Google's website:


  • Go to the official Android Factory Images for Nexus and Pixel Devices page and find the factory image that matches your device model and build number. Click on the link to download the factory image to your computer. The file name should end with .tgz or .zip. Extract the contents of the file into an easily accessible folder, such as C:\factory-image.



Note: The factory images are only available for Pixel devices and some other devices that support the Android Beta Program. If you have a different device, you may need to check with your device manufacturer or carrier for the factory image availability.


How to unlock your device's bootloader (if needed)?




To unlock your device's bootloader (if needed):


  • Make sure that you have enabled USB debugging and OEM unlocking on your device, as explained in Method 2. Connect your device to your computer using a USB cable. Open a command prompt or terminal window on your computer. Type adb reboot bootloader and press Enter. This will reboot your device into bootloader mode. You should see an Android logo with a Start option on your device screen. Type fastboot flashing unlock and press Enter. This will start unlocking your device's bootloader. You may need to confirm this action on your device screen by pressing the Volume buttons and the Power button. Wait for the unlocking process to complete. You should see a message saying "OKAY" on your computer and "Unlocked" on your device screen. Type fastboot reboot and press Enter. This will reboot your device normally.



Note: The exact steps may vary depending on your device model and manufacturer. You can find more information on how to unlock your device's bootloader from these web search results .


How to flash the factory image via fastboot commands?




To flash the factory image via fastboot commands:


  • Make sure that you have downloaded the factory image for your device and extracted it into a folder, as explained in Method 3. Connect your device to your computer using a USB cable. Open a command prompt or terminal window on your computer and navigate to the folder where you have extracted the factory image, such as C:\factory-image. Type adb reboot bootloader and press Enter. This will reboot your device into bootloader mode. Type fastboot devices and press Enter. This will show you a list of devices connected to your computer via fastboot. You should see your device's serial number along with the word "fastboot". If you don't see your device listed, make sure that you have installed the correct drivers for your device and unlocked your device's bootloader, as explained in Method 3. Type flash-all and press Enter. This will start flashing the factory image to your device. You should see a series of messages and progress bars on your computer and device screens. Wait for the flashing process to complete. You should see a message saying "Finished" on your computer and "OKAY" on your device screen. Type fastboot reboot and press Enter. This will reboot your device normally with Android 12 installed.



Note: The exact steps may vary depending on your device model and manufacturer. You can find more information on how to flash factory images via fastboot commands from these web search results .


Method 4: Install Android 12 GSI




If you have a device that does not support the OTA, sideload, or fastboot methods, you may still be able to install Android 12 using a generic system image (GSI). A GSI is a system image that can run on any Android device that supports Project Treble, regardless of the device manufacturer or model.


However, this method is not officially supported by Google or most device manufacturers, and it may not work properly on all devices. You may encounter some bugs, glitches, or compatibility issues with some apps or fe


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