How to Downgrade OnePlus 9/Pro from Android 12 to Android 11
Android 12 is the latest version of Google's mobile operating system, which brings a new design language, improved privacy features, and enhanced performance. However, not everyone is happy with the changes and may prefer to stick with Android 11, which offers a more familiar and stable experience. If you are one of those users who want to downgrade your OnePlus 9 or OnePlus 9 Pro from Android 12 to Android 11, this article will show you how.
oneplus 9 pro android 12 to android 11 downgrade apk
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Before you proceed, you should be aware of the benefits and drawbacks of both Android versions. Android 12 introduces Material You, a new design concept that adapts the system colors and themes based on your wallpaper. It also adds more control over your notifications, media playback, device settings, and connected devices. However, some users may find Android 12 too flashy, buggy, or incompatible with their favorite apps. On the other hand, Android 11 offers a more consistent and reliable user interface, with features like conversation bubbles, smart reply, app suggestions, screen recording, and dark mode scheduling. However, some users may miss out on the new features and improvements that Android 12 brings.
To downgrade from Android 12 to Android 11, you will need to follow some steps that involve backing up your data, downloading and installing a special downgrade apk file, downloading and installing a rollback package for your device model and region, and verifying your new Android version. These steps will erase all your data on your phone, so make sure you have a backup before you start. Let's go through each step in detail.
Requirements
Before you begin, you will need to meet some requirements for downgrading. These include:
A OnePlus 9 or OnePlus 9 Pro device running OxygenOS 12 (stable or beta)
A USB cable and a computer
A backup of your data and settings using Google One or Samsung Account
A backup of your app data, SMS, call history, etc. using Android Data Backup & Restore tool
A downgrade apk file that allows you to install the rollback package
A rollback package that matches your device model and region
At least 50% battery level on your phone
How to Backup and Restore Data on Android
Since downgrading will wipe all your data on your phone, it is essential that you backup your data and settings before you proceed. There are two ways you can do this: using Google One or Samsung Account, or using Android Data Backup & Restore tool.
Using Google One or Samsung Account
Google One is a service that offers cloud storage, backup, and other benefits for Android users. You can use it to backup your data and settings, such as contacts, photos, videos, documents, app data, and device preferences. To use Google One, you will need a Google account and a subscription plan that suits your needs. You can check the available plans and prices here. To backup your data using Google One, follow these steps:
Open the Google One app on your phone. If you don't have it, you can download it from the Google Play Store.
Sign in with your Google account and choose a subscription plan if you haven't already.
Tap on the Backup tab and select what you want to backup. You can choose from Photos & Videos, Multimedia Messages, Contacts, and Device Settings.
Tap on Back up now to start the backup process. You can also enable automatic backup by toggling on the Back up to Google One option.
Wait for the backup to complete. You can check the progress and status of your backup in the app.
To restore your data using Google One, follow these steps:
Open the Google One app on your phone after downgrading to Android 11.
Sign in with the same Google account that you used to backup your data.
Tap on the Restore tab and select what you want to restore. You can choose from Photos & Videos, Multimedia Messages, Contacts, and Device Settings.
Tap on Restore now to start the restore process. You can also choose a specific backup date if you have multiple backups available.
Wait for the restore to complete. You can check the progress and status of your restore in the app.
Using Android Data Backup & Restore Tool
Android Data Backup & Restore tool is a third-party software that allows you to backup and restore your app data, SMS, call history, WhatsApp messages, and other data types on your Android device. You can use it to backup your data to your computer and restore it later. To use Android Data Backup & Restore tool, you will need a USB cable and a computer. You can download the software from here. To backup your data using Android Data Backup & Restore tool, follow these steps:
Launch the software on your computer and connect your phone to it with a USB cable.
Enable USB debugging mode on your phone if prompted. You can find the instructions on how to do this here.
Select Backup & Restore from the main interface of the software.
Select Device Data Backup or One-click Backup depending on your preference. Device Data Backup allows you to choose what data types you want to backup, while One-click Backup backs up all your data at once.
Choose a location on your computer where you want to save the backup file and click Start.
Wait for the backup to complete. You can check the progress and status of your backup in the software.
To restore your data using Android Data Backup & Restore tool, follow these steps:
Launch the software on your computer and connect your phone to it with a USB cable after downgrading to Android 11.
Select Backup & Restore from the main interface of the software.
Select Device Data Restore or One-click Restore depending on your preference. Device Data Restore allows you to choose what data types you want to restore, while One-click Restore restores all your data at once.
Choose a backup file from your computer that you want to restore and click Start.
Wait for the restore to complete. You can check the progress and status of your restore in the software.
How to Download and Install Downgrade APK
The next step is to download and install a special downgrade apk file that allows you to install the rollback package for downgrading. This apk file is provided by OnePlus and is compatible with OnePlus 9 and OnePlus 9 Pro devices running OxygenOS 12 (stable or beta). To download and install the downgrade apk file, follow these steps:
Download the downgrade apk file from this link on your phone or transfer it from your computer using a USB cable.
Locate the downloaded apk file on your phone using a file manager app and tap on it to install it. You may need to enable Unknown Sources or Install Unknown Apps permission if prompted.
Open the installed apk file from your app drawer or home screen. It should be named OnePlus Downgrade Tool or something similar.
Grant any permissions that the app may request, such as storage, phone, and location.
Tap on the Detect button to scan your device and find the suitable rollback package for your device model and region. You should see a message saying "Rollback package detected" if the app finds a matching package.
Tap on the Install button to proceed with the installation of the rollback package. You will see a warning message saying that this will erase all your data and downgrade your device to Android 11. Tap on OK to confirm.
How to Download and Install Rollback Package
The rollback package is a zip file that contains the Android 11 firmware for your device. You will need to download and install it manually using the downgrade apk file. The rollback package varies depending on your device model and region, so make sure you download the correct one for your device. To download and install the rollback package, follow these steps:
Download the rollback package for your device model and region from one of these links:
OnePlus 9 (North America): [link](
OnePlus 9 (Europe): [link](
OnePlus 9 (India): [link](
OnePlus 9 Pro (North America): [link](
OnePlus 9 Pro (Europe): [link](
OnePlus 9 Pro (India): [link](
Locate the downloaded zip file on your phone using a file manager app and rename it to OnePlus.zip. Make sure you don't unzip or extract the file.
Move the renamed zip file to the root directory of your internal storage. This is the main folder that contains all your other folders, such as DCIM, Download, Music, etc.
Open the downgrade apk file that you installed earlier and tap on the Install button again. The app will detect the zip file in your storage and start installing it.
Follow the on-screen prompts and wait for the installation to complete. Your device will reboot several times during the process.
How to Verify and Enjoy Android 11
After installing the rollback package, your device should boot into Android 11 with OxygenOS 11. You can verify this by going to Settings > About Phone and checking the Android version and build number. You should see something like this:
Android version11
OxygenOS version11.x.x
Build numberONEPLUS AXXXXX_OXYGEN OS_xxx_xxx_xxx
Congratulations, you have successfully downgraded your OnePlus 9 or OnePlus 9 Pro from Android 12 to Android 11. You can now enjoy some of the features and advantages of Android 11 over Android 12, such as some of the following:
Conversation bubbles that let you access your chats from any app without switching.
Smart reply that suggests relevant responses and actions based on your messages.
App suggestions that show you the most useful apps for your current context on the home screen.
Screen recording that lets you capture and share your screen activity with audio.
Dark mode scheduling that lets you set a custom time or sunrise/sunset for dark mode activation.
Of course, you can always upgrade to Android 12 again if you change your mind or want to try the latest features. You can do this by checking for updates in Settings > System > System Updates or by downloading and installing the Android 12 package manually.
Conclusion
In this article, we have shown you how to downgrade your OnePlus 9 or OnePlus 9 Pro from Android 12 to Android 11. We have explained the benefits and drawbacks of both Android versions, the requirements for downgrading, how to backup and restore your data, how to download and install the downgrade apk file and the rollback package, and how to verify and enjoy Android 11. We hope this article has been helpful and informative for you.
However, downgrading is not a risk-free process and may cause some issues or errors on your device. Therefore, we advise you to follow the steps carefully and at your own risk. We are not responsible for any damage or data loss that may occur as a result of downgrading. If you encounter any problems or have any questions, please feel free to contact us or leave a comment below. We will try our best to assist you.
FAQs
Here are some frequently asked questions and answers about downgrading:
Q: Will downgrading void my warranty or affect my device security?
A: No, downgrading will not void your warranty or affect your device security. However, you may not receive the latest security patches or bug fixes that are available for Android 12. You can always upgrade to Android 12 again if you want to get the most up-to-date security and performance improvements.
Q: Will downgrading delete my data or apps?
A: Yes, downgrading will delete all your data and apps on your device. That is why it is important to backup your data before you start. You can use Google One or Samsung Account to backup your data and settings, and Android Data Backup & Restore tool to backup your app data, SMS, call history, etc. You can restore your data after downgrading using the same tools.
Q: Will downgrading affect my network or carrier settings?
A: No, downgrading will not affect your network or carrier settings. Your device should work normally with your SIM card and network provider after downgrading. However, if you experience any issues with your network connection or service, you can try resetting your network settings in Settings > System > Reset Options > Reset Wi-Fi, Mobile & Bluetooth.
Q: Will downgrading remove any features or functions from my device?
A: Yes, downgrading will remove some features or functions that are exclusive to Android 12. For example, you will not be able to use Material You, Privacy Dashboard, Quick Tap, Face Detection, Live Translate, etc. However, you will still be able to use some features that are common to both Android versions, such as Always On Display, Ambient Display, Zen Mode, Game Mode, etc.
Q: How can I upgrade to Android 12 again after downgrading?
A: You can upgrade to Android 12 again after downgrading by checking for updates in Settings > System > System Updates or by downloading and installing the Android 12 package manually. However, upgrading will also delete all your data and apps on your device, so make sure you backup your data before you start. You can use the same tools that we mentioned earlier for backing up and restoring your data. 44f88ac181
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