How To Uninstall Android Pie Update And Rollback To Oreo
Android Pie is the latest operating system from Google and most of the people aren’t liking the new update and often tend to search how to uninstall android pie update from there smartphone for various reasons.
Given the features in the new operating system, there are many unattractive holdings which users are not as comfortable as the new recent style has changed on Google pixel devices. The battery consumption, which is a big problem for most of the users as the AI, has been implemented for optimising the battery usage for frequent app usage.
There are many problems that the users after upgrading to Android Pie from Android Oreo 8.0 are facing, and in this article, we will help you how to uninstall Android Pie update from your smartphone. The process is not that easy as it requires a computer or a laptop where you need specific tools and the Oreo firmware to uninstall the Android Pie and install Android Oreo back.
There are different tools and firmware for various devices which you can find below, but more certain you will require.
Step 1: Install ADB & Fastboot on Your Windows Computer or Macbook
To begin, be sure to install ADB and Fastboot on your computer. These two utilities allow you to flash images through the Fastboot commands. You can find several forms of ADB from third parties and Fastboot “one-click” and “light”, but they are not updated as often as the official versions. As a result, they may not be fully compatible with the latest version. For this reason, we do not recommend them.
What you should do is install the Android SDK tools, which include ADB and Fastboot, or download ADB and Fastboot directly from Google. In any case, you can be sure that you will receive the full package here. Be sure to review Method 1 of the following guide for installation instructions for Windows, Mac, and Linux.
Step 2: Enable OEM unlock (OTA method only)
For the images to be flashed in Fastboot, you must unlock the boot loader on your device. For those who have manually upgraded to Android Pie, their boot loader is already unlocked as part of step 1. Therefore, you can skip this step. However, if you get Android Pie as an OTA update, you should probably unlock the bootloader to downgrade to Oreo now.
However, before you can unlock your boot loader, you must first enable developer options. To find and activate this configuration, go to Settings > About Phone > tap the build number several times till you see the Developer Options Enabled message popped. Then, open the Developer Options menu and press the switch to the right of “Unlock OEM.”
Step 3: Enter Bootloader Mode
For running fastboot commands, your device must be able to boot into the bootloader mode. To enter the fastboot way you need to press Volume up + Power button together until you see the fastboot menu on your device screen.
Once you have booted to the fastboot menu, connect your device to your computer or MacBook using the USB data cable.
Step 4: Open a Command Window on Your Computer
Now go to the ADB and Fastboot folder on your computer which is generally located by default at C:\Program Files (x86)\Android\android-sdk\platform-tools. On Mac, it will be found under Applications > Android from step 1.
If on Windows, hold down the shift key, then right-click anywhere there’s space in the platform-tools folder. Select “Open command window here.” On Mac, open a new window in Terminal, then type cd /Applications/Android/
Step 5: Unlock the Bootloader (OTA Method Only)
The next step must be done once. If your boot loader is already unlocked, do not hesitate to go to step 6. Otherwise, you must execute a single Fastboot command. Note: this action will erase all data on your device.
The following section lists the Windows commands that are needed to unlock the boot loader. If you are using a Mac, you should probably add a period and a bar (./) before each command, while Linux users should only add a slash (/) in the foreground.
When you are ready, type the following command from the ADB shell and then press ENTER.
If you see a series of numbers and letters followed by “fastboot”, then you know that your device is correctly connected. Otherwise, return to step 1 to verify the installation of ADB and Fastboot. Make sure your device is in boot loader mode, as described in step 3.
Now, you’re finally ready to unlock the bootloader. Just type the following command, then press “enter.”
For Pixel devices enter the next command
- fastboot flashing unlock
You will be greeted with a message to unlock the bootloader on your Pixel device. You need to navigate through the commands by using the Volume keys and for selecting you need to press the power button. Select yes, and your bootloader will unlock, and your device will reboot back to Fastboot mode.
Step 6: Download the Factory Images
Now that you’ve unlocked the bootloader, you can start flashing the Oreo factory images. Before you can do that, however, you’ll need to download the pictures themselves. You can snag the Oreo factory images from the page below:
To use that page, find your specific Pixel model in the list on the right of the page, then click it. From there, click the link next to the most recent version that starts with 8.x.x.
Step 7: Flash the Factory Images
Now, the first thing to do is to extract the factory image file that you downloaded from the manufacturer’s website.
Then, take the contents of the file and move it to the platform-tools folder in the installation address of your ADB, then open an ADB shell window here. If you need more context here, see step 4 above.
Apart from that, you can choose two methods to update these images:
Method 1: Use the Flash-All Script
This can take a few minutes to complete, but once it does, your device should reboot automatically, running stock firmware.
Method 2: Extract the Images & Flash Them Individually
If the flash-all script does not work, you can flash the system images one by one. This method requires a little more time but will return your phone to Oreo.
To begin, extract the additional files from the factory image package. Sometimes, the factory image packages contain a series of three or four nested data, so be sure to unzip them all. Then copy all the image files into the main Tools folder of the platform. Do not leave them in the subfolders.
Now, there are six images that you’ll need to focus on: boot, bootloader, radio, recovery, system, and vendor. These are the files that make up the core of Android.
Some of these files may have longer names than just, for example, bootloader.img. If so, be sure to enter the full file name (rather than the placeholder text in brackets) when sending the image-flashing commands below.
First, you have to flash the bootloader image — this is the interface that you’re using to flash images with Fastboot commands. So to downgrade your bootloader to the Oreo version, type:
- fastboot flash bootloader <bootloader image file name>.img
Next, reload the bootloader to keep flashing images on the Oreo version. For that, type:
- fastboot reboot-bootloader
Next up, there’s the boot image, which contains the kernel. To flash it, type the following into the ADB shell window:
- fastboot flash boot <boot image file name>.img
After that command, there’s the radio image. Type this to flash it:
- fastboot flash radio <radio image file name>.img
Then we have recovery. Type:
- fastboot flash recovery <recovery file name>.img
The big one is next: the system image. This one contains all of the files that make up the Android OS. Type:
- fastboot flash system <system file name>.img
And, finally, there’s the vendor image. This is an important part of the new Project Treble system, so it’s a key image. Type:
- fastboot flash vendor <vendor file name>.img
Once you’ve sent any or all of these commands, you can restart your device, then boot into Android. For that, type:
- fastboot reboot
Your device should now be fully downgraded back to Oreo. And now that you know what each of the core system images does in the OS, you’ll have a better idea of how Android works now.