Download Xiaomi 12S (mayfly) OS1.0.3.0.ULTCNXM HyperOS Stable Full Rom

21 February 2024

The Stable update OS1.0.3.0.ULTCNXM has been officially released for Xiaomi 12S (codename is mayfly). Before updating, please make sure you have downloaded the exact ROM matching your Xiaomi phone/tablet. In Fastboot mode, you can check model code by typing fastboot getvar product in cmd/shell.

The firmware files posted here are all official Xiaomi MIUI or HyperOS ROM, xiaomiROM.com do not own and never modified those firmwares，you will always download the file from Xiaomi server.

You may interest in those contents: Xiaomi 12S ROM Topics Xiaomi Devices Index

 China Fastboot ROM

Download Xiaomi 12s (mayfly) China HyperOS OS1.0.3.0.ULTCNXM Fastboot ROM with Android 14.0. Firmware size is 7.8 GB.

HyperOS Version
OS1.0.3.0.ULTCNXM
HyperOS Code
N/A
Android OS
14.0
Region
China
Device Name
Xiaomi 12s
Device Codename
mayfly
Type
Stable
Flash Method
Fastboot
Size
7.8 GB
Release Date
2024-02-21
Filename
mayfly_images_OS1.0.3.0.ULTCNXM_20240125.0000.00_14.0_cn_e7f07756ad.tgz
MD5
N/A
Download
 Xiaomi Server #2  Xiaomi Server #3  Xiaomi Server #4  Xiaomi Server #5

 China Recovery ROM

Download Xiaomi 12s (mayfly) China HyperOS OS1.0.3.0.ULTCNXM Recovery ROM with Android 14.0. Firmware size is 5.8 GB.

HyperOS Version
OS1.0.3.0.ULTCNXM
HyperOS Code
N/A
Android OS
14.0
Region
China
Device Name
Xiaomi 12s
Device Codename
mayfly
Type
Stable
Flash Method
Recovery
Size
5.8 GB
Release Date
2024-01-29
Filename
miui_MAYFLY_OS1.0.3.0.ULTCNXM_2d7643fb8d_14.0.zip
MD5
N/A
Download
 Xiaomi Server #2  Xiaomi Server #3  Xiaomi Server #4  Xiaomi Server #5