In this guide, we’ll walk you through the process of installing the Android 15 Custom ROM on the Xiaomi 12S Ultra. If you’re eager to experience the clean, feature-packed Android 15, you’ve come to the right place. Google recently launched Android 15 for its Pixel lineup, followed by the official source code release for developers. This has led to the creation of custom ROMs based on Android 15 for Xiaomi 12S Ultra, users can now enjoy an unofficial AOSP build of Android 15. Ready to transform your device with the latest Android features? Let’s get started!
Xiaomi 12S Ultra Overview
The Xiaomi 12S Ultra features a 6.73 inches LTPO2 AMOLED panel with a 120 Hz refresh rate. It is a QHD+ panel with a resolution of 1440 x 3200 pixels and an aspect ratio of 20:9. The screen has a peak brightness of 1500 nits and supports Dolby Vision and HDR10+. Under the hood, we get the Qualcomm Snapdragon 8+ Gen 1 processor built on a 4nm manufacturing process. It is an octa-core processor with one Cortex-X2 clocked at 3.19 GHz, three Cortex-A710 cores clocked at 2.75 GHz, and four Cortex-A510 cores clocked at 1.8 GHz. For handling the graphics-intensive tasks, we have the Adreno 730. The smartphone comes with Android 12 out of the box with MUI 13 skin running on top.
In optics, we get a quad camera setup at the rear and a single selfie camera at the front. The quad rear camera setup consists of a 50.3 MP primary sensor paired with an f/1.9 lens, a 48 MP periscope telephoto sensor paired with an f/4.1 lens, a 48 MP ultrawide sensor paired with an f/2.2 lens, and a TOF depth sensor. The selfie camera at the front is a 32 MP primary sensor paired with an f/2.5 lens. The rear camera system can record 8K videos at 24 fps along with Dolby Vision HDR 10-bit rec. (4K, 1080p) video recording support. The front camera is limited to a 4K video recording.
The smartphone comes in three storage options: 256GB internal storage + 8GB RAM, 256GB internal storage + 12GB RAM, and 512GB internal storage + 12GB RAM. We do not get a MicroSD slot for storage expansion. In terms of communications, we get Wi-Fi 802.11 a/b/g/n/ac/6e, Bluetooth 5.2, GPS, NFC, Infrared port, and USB Type-C 2.0. And for sensors, we get an under-display optical fingerprint sensor, accelerometer, gyro, compass, color spectrum, and barometer. Powering it all is a 4860 mAh battery that can be topped up quickly using a 67W power adapter. The company claims that the smartphone can go from 0 to 100% in 41 min. The smartphone is available in two color options: Black and Dark Green.
TWRP Home