Samsung Galaxy S21 Ultra is a huge, powerful Android phone with some big upgrades over the Galaxy S21 Ultra. The device comes with a 6.8-inch Dynamic AMOLED 2X display, Contour Cut Camera, and Corning Gorilla Glass Victus. It is powered by Qualcomm Snapdragon 888 or Exynos 2100 (Global). The device came out of the box with Android 11 and later received Android 12 and Android 13, and now users can enjoy the major OS update of Android 14. In this guide, we will show you how to download and install the One UI 6.0 based on Android 14 on your Samsung Galaxy S21 Ultra.
Also Read

Samsung Galaxy S21 Ultra Device Overview:
The Samsung Galaxy S21 Ultra features a 6.8-inch Dynamic AMOLED panel with a refresh rate of 120Hz. It has a resolution of 1440 x 3200 pixels and an aspect ratio of 20:9. The brightness is also quite high, with maximum peak brightness reaching up to 1500 nits, making outdoor visibility no issue at all. As for the protection, we have the industry best Gorilla Glass Victus protection in the S21+, and we also have the HDR10+ certification for HDR video playback.
For processing power, we get the Qualcomm Snapdragon 888 for the Chinese and American market, while the rest of the world gets the Exynos 2100 chipset. Both these processors are built on a 5nm manufacturing process. The Snapdragon 888 is an octa-core processor consisting of one Kryo 680 core clocked at 2.84 GHz, 3 Kryo 680 cores clocked at 2.42 GHz, and four Kryo 680 cores clocked at 1.8 GHz. The Exynos 2100 is also 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.
In terms of optics, we have a quad-camera setup at the rear and a single high megapixel camera at the front. The quad-camera setup consists of a 108MP primary sensor paired with an f/1.8 lens, a 10MP periscopic telephoto lens paired with an f/4.9 lens, a 10MP telephoto sensor paired with an f/2.4 lens, and a 12MP ultrawide sensor paired with an f/2.2 lens. The rear setup is capable of capturing 8K videos at 24 fps. We also have stereo sound recording and HDR10+ video recording. Coming to the front, we have a 40MP lens paired with an f/2.2 lens. This is capable of capturing 4K videos at 60 fps.


Repeat this for BL, CP, and CSC.
Initiate Installation:
Video Guide: