Providing the bug fixes and system improvements on its Galaxy A31 variants, Samsung has finally released the One UI 4.0 stable update for Galaxy A31 devices based on Android 12 globally. If in case, you’ve upgraded your Galaxy A31 device recently and facing any bugs or stability issues, then you’re in right place.

In this rollback guide, we will show you how to downgrade Samsung A31 from One UI 4.0 to 3.0 i.e. from Android 12 to 11. At the time of writing this article, Samsung started rolling the One UI 4.0 based on the Android 12 update for the Samsung Galaxy A31 users around the globe, many users have already received the latest OneUI 4.0 update. This straightway translates to the fact that the device owners were able to welcome a plethora of new features.

One UI 4.0, which is based on Android 12 brings an entirely new UI design with a simplified color palette feature and the game-changer Android 12’s material YOU design that lets users significantly personalize the look and feel of the UI. The dark mode is now been expanded to all app icons and the camera UI adds ease to use and is better than the last version.

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However, some users still prefer the older OneUI 3.0 over the newer one. For some, the high degree of customization is way too much to deal with. Along the same lines, others have complained of a few bugs and underlying issues. Likewise, there are still some apps that aren’t compatible with the latest Android update. So if you also facing any such issues, then there’s a handy way out. You could easily downgrade your Samsung A31 from One UI 4.0 to 3.0 i.e. from Android 12 to 11. Here are the required instructions in this regard.

Samsung Galaxy A31 Specifications: Overview

The handset features a 6.4-inches Super AMOLED 19:9 aspect ratio display. Samsung Galaxy A31 is powered by an octa-core Exynos 9820 SoC coupled with 8GB/12GB of RAM. The device offers 128GB/1TB of internal storage which can be expandable up to 512GB via a MicroSD card.

It packs a 4,100 mAh non-removable battery with fast charging and wireless charging support. The Galaxy A31 runs on Samsung’s latest One UI custom skin based on Android 9.0 Pie custom skin. The S10 sports a 12MP primary (f/1.5), a secondary 12MP camera (f/2.4), and a third 16MP ultra-wide-angle camera (f/2.2). The rear camera setup has PDAF, HDR, and an LED flash. While the front features a 10MP selfie camera + an 8MP RGB depth sensor with an f/1.9 aperture lens and autofocus.

In terms of the connectivity options, the A31 includes Wi-Fi 802.11 a/b/g/n/ac, GPS, Bluetooth 5.0, NFC, USB Type-C port, 3G, Dual 4G LTE Nano-SIM, and more. It includes an accelerometer, ambient light, barometer, compass, gyroscope, proximity sensor, and fingerprint sensor. The Samsung Galaxy A31 also supports face unlock.

Downgrade Samsung A31 One UI 4.0 to 3.0 | Rollback Android 12 to 11

The entire instructions have been broken down into separate sections for ease of understanding. Follow along in the exact same sequence as mentioned.

STEP 1: Take a Device Backup

To begin with, take a backup of all the data on your device. This is because the below downgrade process might wipe off all the data.

STEP 2: Install Odin

Next up, install the Odin Tool on your PC. This will be used to install the downgrade firmware onto your device.

STEP 3: Download the Rollback Firmware

Likewise, download the rollback firmware for your device. This will help you to downgrade your Samsung A31 from One UI 4.0 to 3.0 i.e. from Android 12 to 11. You could download the Android 10 firmware using the Frija Tool or the Samfirm tool. Just make sure to download the firmware corresponding to your region only.

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STEP 4: Boot Samsung Galaxy A31 to Download Mode

Along the same lines, you will have to boot your device to the Download Mode. To do so, Power off your device. Then press and hold the Volume Down + Volume Up together and connect your device to the PC via USB cable. As soon as you see the Download Mode, release all the keys. Finally, use the Volume Up key to select the OK option. That’s it. Your Samsung A31 will now be booted to the Download Mode.

STEP 5: Downgrade Samsung A31 One UI 4.0 to 3.0

Now that you have carried out the above four steps, you may start off with the downgrade process.

  • To begin with, extract the downgrade firmware onto your PC. You should get the AP, BL, CP, CSC, and Home CSC files in the .tar.md5 format.
  • Then launch the Odin Tool and connect your device to the PC via USB cable. Make sure that it is booted to Download Mode.
  • As soon as the connection is established, Odin’s ID: COM port will be highlighted. This means that the tool has successfully identified your device in the Download Mode.
  • It’s now time to load the firmware files to Odin. So first of all, click on the tool’s BL button and load the BL firmware file.
  • Likewise, do the same for the AP, CP, and CSC. Do keep in mind that you should load the Home CSC file and not the normal one under the CSC section.
  • Once you have loaded all the firmware files, go to the Options section of Odin. Now enable the ‘Auto Reboot’ and ‘F.Reset Time’ options.
  • When that is done, hit the Start button and wait for the installation to complete.
  • Once done, the tool will display the PASS message and your device will reboot to the Android 10 OS.
  • You may now disconnect the device from the PC and close the Odin Tool.

That’s it. These were the steps to downgrade your Samsung Galaxy A31 from One UI 4.0 to 3.0 i.e. from Android 12 to 11. If you have any queries concerning the aforementioned instructions, do let us know in the comments section below. Rounding off, here are some equally useful iPhone Tips and Tricks, PC tips and tricks, and Android Tips and Tricks that deserve your attention.