OnePlus recently rolled the Android 12 update for the OnePlus Nord 2 devices globally which brings a new revamped UI, new notification style, privacy dashboard, and many more to the table. If you have installed Android 12 and want to downgrade to Android 11, this guide is for you.
As we all know, the Android 12 may contain bugs that can make your device unstable to use as a daily driver. In this tutorial, we will guide you on how to roll back from Android 12 to Android 11 on the OnePlus Nord 2. This guide is easy to follow, all you need is a computer with a working USB cable to connect your device to the computer.
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OnePlus Nord 2 5G Device Overview:
The Oneplus Nord 2 features a 6.43-inch Fluid AMOLED panel with a resolution of 1080 x 2400 pixels and an aspect ratio of 20:9. It is a high refresh rate panel with a 90Hz refresh rate, and it supports HDR10+ content. The display is protected by Corning Gorilla Glass 5.
Under the hood, we get the MediaTek Dimensity 1200 5G built on a 6nm manufacturing process. This is a flagship-level octa-core processor which consists of one Cortex-A78 core clocked at 3.0 GHz, three Cortex-A78 cores clocked at 2.6 GHz, and four Cortex-A55 cores clocked at 2.0 GHz. For handling the graphics-intensive tasks, we have the Mali-G77 MC9.
In terms of optics, we get a triple camera setup at the rear and a single camera at the front. The triple camera setup at the rear consists of a 50MP primary sensor paired with an f/1.9 lens, an 8MP ultrawide sensor paired with an f/2.3 lens, and a 2MP monochrome sensor paired with an f/2.4 lens. At the front, we get a 32MP selfie camera paired with an f/2.5 lens. The rear camera can capture 4K videos at 30 fps, while the front is limited to 1080p video recording.
The smartphone comes with Android 11 out of the box with OxygenOS 11 running on top. It is available in two storage options: 128GB internal storage + 8GB RAM and 256GB internal storage + 12GB RAM.
In terms of communications, we get Wi-Fi 802.11 a/b/g/n/ac, Bluetooth 5.2, GPS, NFC, and USB Type-C 2.0. And for sensors, we get an under-display optical fingerprint sensor, accelerometer, gyro, proximity, and compass. Powering it all is a 4,500 mAh battery that supports 65W fast charging.
Downgrade OnePlus Nord 2 from Android 12 to Android 11
First of all, download the appropriate firmware package for your device from the below link. Once that is done, proceed with the instructions and steps that follow.
Pre-Requirements:
- Supported device: OnePlus Nord 2
- Make sure to charge your device more than 50%
- You need a PC or Laptop with a USB cable.
- Take a complete backup using any method given below
- Full Data Backup without Root
- Nandroid Backup via TWRP
- Download Drivers: Qualcomm USB Drivers and OnePlus USB Drivers
Download Rollback Package
- Device: OnePlus Nord 2
- Download: Link
Now that you have downloaded the rollback package from the above section, just create a complete device backup before proceeding with the below-mentioned steps. This is because the installation steps require a wipe of the data. Once you have done so, here are is everything you need to be aware of regarding the downgrade of the OnePlus Nord 2 from Android 12 to Android 11.
- Full Data Backup without Root
- Nandroid Backup via TWRP
Downgrade Instructions
- First of all, Turn off your device.
- Now reboot your phone into bootloader mode by pressing and holding the VOLUME UP and POWER buttons simultaneously.
- Now connect your device to your PC using the USB cable.
- Open the extracted firmware folder to flash it using fastboot mode.
- Enter the below code to boot your device into fastbootd mode.
fastboot -w
- Now flash the following files by entering the code
fastboot flash boot boot.img fastboot flash cpucp cpucp.img fastboot flash dtbo dtbo.img fastboot flash modem modem.img fastboot flash oplusstanvbk oplusstanvbk.img fastboot flash oplus_sec oplus_sec.img fastboot flash qweslicstore qweslicstore.img fastboot flash shrm shrm.img fastboot flash splash splash.img fastboot flash vbmeta vbmeta.img fastboot flash vbmeta_vendor vbmeta_vendor.img fastboot flash vbmeta_system vbmeta_system.img fastboot flash vendor_boot vendor_boot.img fastboot flash vm-bootsys vm-bootsys.img
- Now reboot into userspace fastboot, aka fastbootd. If you don’t do this, the remaining files cannot be flashed:
fastboot reboot fastboot
- Flash the remaining files:
fastboot flash abl abl.img fastboot flash aop aop.img fastboot flash bluetooth bluetooth.img fastboot flash devcfg devcfg.img fastboot flash dsp dsp.img fastboot flash featenabler featenabler.img fastboot flash hyp hyp.img fastboot flash imagefv imagefv.img fastboot flash keymaster keymaster.img fastboot flash multiimgoem multiimgoem.img fastboot flash qupfw qupfw.img fastboot flash tz tz.img fastboot flash uefisecapp uefisecapp.img fastboot flash xbl xbl.img fastboot flash xbl_config xbl_config.img fastboot flash product product.img fastboot flash system system.img fastboot flash system_ext system_ext.img fastboot flash vendor vendor.img fastboot flash odm odm.img
- Now reboot your device into the system using the below fastboot command:
fastboot reboot
- If everything worked, your phone should now boot into OxygenOS. The files will be flashed to your currently active boot slot. If any of them fail to flash, switch to the other slot and start over from the beginning. I couldn’t flash ODM, product, system, system_ext, and vendor to slot a, and had to use slot b instead. To check the current slot:
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fastboot getvar current-slot
To switch slots:
fastboot –set-active=a
or
fastboot –set-active=b
So this was all from this guide on downgrade or rollback from Android 12 to Android 10 stable build on your OnePlus Nord 2 devices. The first boot after the rollback could up some time; this is completely normal. Since a device reset has taken place, you might have to set it up from scratch. Rounding up, here are some iPhone Tips and Tricks, PC tips and tricks, and Android Tips and Tricks that deserve your attention too.
