On this page, we provide a step-by-step guide on how to install the unofficial Android 14 Custom ROM on the Xiaomi 12, codenamed “cupid.” If you’re looking to...
Mohammed Huwais
Last updated on September 15, 2025
Mohammed Huwais
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I started my career as a blogger in 2014 and also worked on an Android niche platform to gain extra income. I cover the topic on How to guides, software updates, Custom ROM updates and also product review. I'm 24 years old, completed MBA (Master of Business Administration) from Sikkim Manipal University.
On this page, we provide a step-by-step guide on how to install the unofficial Android 14 Custom ROM on the Xiaomi 12, codenamed “cupid.” If you’re looking to install the pure version of Android 14, then you’re in the right place.
Xiaomi 12 launched in China which features a 6.3-inch Full HD+ AMOLED display with a hole-punch cut out for the selfie camera. The device sports a triple rear camera setup, Snapdragon 8 Gen1 processor and runs on MIUI 13 based on Android 12.
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Xiaomi 12 features a 6.28 inches AMOLED FHD+ 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 120Hz refresh rate that can operate at a peak brightness of 1100 nits. Under the hood, we have the latest Qualcomm Snapdragon 8 Gen1 built on a 4nm manufacturing process. It is an octa-core processor with one Cortex-X2 core clocked at 3.00 GHz, three Cortex-A710 cores clocked at 2.5 GHz and four Cortex-A510 cores clocked at 1.8 GHz. For handling the graphics-intensive tasks, we have the Adreno 730.
Coming to the optics, we get a 50MP primary sensor paired with an f/1.9 lens, a 5MP telephoto macro sensor, and a 13MP ultrawide sensor paired with an f/2.4 lens. At the front, we get a 32MP sensor. The rear camera setup is capable of recording 8K videos at 24fps, while the front camera is limited to 1080p video recording.
There are three storage options of this smartphone: 128GB internal storage + 8GB RAM, 256GB 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/6, Bluetooth 5.2, GPS, NFC, and USB Type-C 2.0. And in terms of sensors, we get an under-display fingerprint sensor, accelerometer, gyro, proximity, compass, and color spectrum. There is a 4,500 mAh battery powering this smartphone that supports 67W fast wired charging and 50W wireless charging. The smartphone is available in four color options: Black, Green, Blue, and Pink.
Android 14, Google’s fourteenth major iteration and the 21st version of its renowned operating system, was unveiled to the public on October 4. The pioneering devices graced with this fresh release were the Pixel 8 and Pixel 8 Pro, underscoring Google’s commitment to keeping its flagship devices at the technological forefront.
This latest installment boasts a plethora of enhancements and innovative features. Among the standout additions are a revamped lock screen, a more intuitive system share sheet, and a redesigned battery-saving mode. Users can also delight in the convenience of drag-and-drop capabilities during app switches, a groundbreaking Ultra HDR support for media, and the visually striking Material You-themed settings toggles. With AI-generated wallpapers and a new monochromatic theme, Android 14 not only refines functionality but also offers a refreshed aesthetic experience.
Whats working? Wi-Fi RIL Volte Mobile data GPS Camera Flashlight Camcorder Bluetooth Fingerprint FM radio Sound vibration Known issues ? You Tell Us
As the title indicates, this article provides the necessary steps and requirements to install the AOSP Android 14 build on the Xiaomi 12 (cupid) model.
Before diving into the guide, please ensure you’ve met all the prerequisites listed below.
Before we begin this procedure, I strongly recommend you create a backup of your device storage and all your files stored on your device. Moreover, following the steps mentioned in this post carefully is advised to avoid permanent damage or bricking your device.
It’s highly recommended to charge your handset before unlocking the bootloader to avoid your device from shutting down occasionally while going through the process. Keep at least 50% of the charge or higher for a smooth operation.
You can skip this adb and fastboot part if you have already installed TWRP Recovery on your Xiaomi 12.
Using the ADB and Fastboot commands (platform-tools), you can boot your Android device into the bootloader mode (download mode), making it easy for you to proceed with further steps. ADB (Android Debug Bridge) creates a connection or bridge between the device and the computer to sideload files.
Fastboot is a more advanced command utility tool for Android devices that works with computers. You can download ADB and Fastboot Binaries (Platform-Tools).
To create a strong and successful connection between a mobile device and a computer using a USB data cable, you will need a USB Driver. It is essentially a set of files that enables you to transfer files between the connected devices, flash files on the handset, and much more.
It is important to note that USB drivers can be utilized and operated by mobile devices and other external devices on a Windows computer. These include but are not limited to mice, keyboards, printers, external hard drives, speakers, and USB flash drives. If you need to download Xiaomi USB drivers, you can find them here.
You need to unlock the Xiaomi 12’s bootloader before installing custom ROMs.
You must install TWRP Recovery on your phone to install any custom ROM on your device. After unlocking the bootloader, follow our guide to install TWRP Recovery on your Xiaomi 12.
You will find all the Android 14 custom ROMs for your Xiaomi 12 (cupid) here.
| Evolution X | XDA Development Page |
Most third-party AOSP ROMs, also known as aftermarket firmware, do not include preinstalled Google apps. You can manually install Android 14 GApps with our guide.
Warning!
GetDroidTips won’t be responsible for any issue that may happen to your device if you flash it on another device and brick it. Do it at your own risk.
adb reboot recovery
TWRP Home
The installation of AOSP Android 14 on Xiaomi 12 is complete, and your device will now boot with the newly installed OS. It’s worth noting that the first boot may take some time, and you may need to set up your device from scratch. With that, our guide to installing AOSP Android 14 on Xiaomi 12 comes to an end.
If you want to try out the latest Android OS version on your Xiaomi 12, flashing the ported Android 14 is an option. Although it seems like the Xiaomi 12 won’t receive the official Android 14 update from the manufacturer, you can still enjoy most of the features and visual treatment with this ported version. However, if you encounter any bugs or stability issues, it’s important to report them to the respective forum.
That’s it, guys. We assume this guide was helpful to you. For further queries, you can comment below.
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