In this rollback guide, we will show you how to downgrade Samsung Galaxy S21 / S21 Plus from One UI 5.1 to 4.0 i.e. from Android 13 to 12. At the time of writing this article, Samsung started rolling the One UI 5.1 based on the Android 13 update for the Samsung Galaxy S21 / S21 Plus users around the globe; many users have already received the latest OneUI 5.1 update. This straightway translates to the fact that the device owners were able to welcome a plethora of new features.
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One UI 5.1 is the latest version of Samsung’s mobile user interface, based on the Android 13 operating system. It offers several new features that are designed to make using your phone easier and more efficient.
However, some users still prefer the older OneUI 4.0 over, the newer one. For some, the high degree of customization is too much to deal with. Along the same lines, others have complained of a few bugs and underlying issues. Likewise, some apps are still not compatible with the latest Android update. So if you also face such issues, there’s a handy way out. You could easily downgrade your Samsung S21 / S21 Plus from One UI 5.1 to 4.0 i.e. from Android 13 to 12. Here are the required instructions in this regard.
Samsung Galaxy S21 5G Device Overview:
The Samsung Galaxy S21 features a 6.2-inch Dynamic AMOLED panel with a 120Hz refresh rate. The screen can go all the way up to 1300 nits under extreme sunlight conditions. It has a resolution of 1080 x 2400 pixels and an aspect ratio of 20:9 ratio. With the Samsung S20, we get the Exynos 2100 chip built on a 5nm manufacturing process. It is an octa-core processor with one Cortex-X1 core clocked at 2.9 GHz, three Cortex-A78 cores clocked at 2.8 GHz, and four Cortex-A55 cores clocked at 2.2 GHz.
This may have worked when posted, but now it DOES NOT WORK! 05/30/2023