Xiaomi
Codename: #mayfly
5 Packages Available
Firmware Xiaomi 12S
Official stock firmware downloads of Recovery ROM, Fastboot ROM, and OTA update packages for Xiaomi 12S (Codename: mayfly). All files are provided directly from official Xiaomi CDN servers.
Firmware Specs
Latest Version:
OS3.0.3.0.VLTCNXM
Android:
Android 15.0
Release Date:
23 Mar 2026
Category:
phones
Select Region / Country:
Firmware Region China
Recovery
Stable
Android 15.0
OS3.0.3.0.VLTCNXM
Choose Download Mirror
File Size:
6.3 GB
Release Date:
23 Mar 2026
MD5 Checksum:
16f6dcd3383d20ccae404262cdd14340
File Name:
mayfly-ota_full-OS3.0.3.0.VLTCNXM-user-15.0-16f6dcd338.zip
Fastboot
Stable
Android 15.0
OS3.0.3.0.VLTCNXM
Choose Download Mirror
File Size:
7.6 GB
Release Date:
12 Mar 2026
MD5 Checksum:
ab4953c4247f747e9168ea13d065d0e7
File Name:
mayfly_images_OS3.0.3.0.VLTCNXM_20260312.0000.00_15.0_cn_ab4953c424.tgz
Recovery
Public Beta
Android 14.0
OS1.0.24.1.8.DEV
Choose Download Mirror
File Size:
5.8 GB
Release Date:
12 Jan 2024
MD5 Checksum:
null
File Name:
miui_MAYFLY_OS1.0.24.1.8.DEV_cbd113e9da_14.0.zip
Recovery
Stable Beta
Android 13.0
V14.0.4.0.TLTCNXM
Choose Download Mirror
File Size:
5.9 GB
Release Date:
28 Dec 2022
MD5 Checksum:
53f81d855337680a635e490a6c306b48
File Name:
miui_MAYFLY_V14.0.4.0.TLTCNXM_53f81d8553_13.0.zip
Fastboot
Public Beta
Android 13.0
V14.0.22.12.5.DEV
Choose Download Mirror
File Size:
7.6 GB
Release Date:
05 Dec 2022
MD5 Checksum:
085cddb1a5ad832961c787b76059ad5d
File Name:
mayfly_images_V14.0.22.12.5.DEV_20221205.0000.00_13.0_cn_chinatelecom_085cddb1a5.tgz
Installation & Flashing Guide
1. Recovery ROM Method (.zip)
Best for direct updates via Settings > About Phone > System Update > Choose update package, or flashing through custom recovery like TWRP or OrangeFox without a PC.
2. Fastboot ROM Method (.tgz)
Used for unbricking, clean flash upgrades, or downgrading using a computer with Xiaomi Mi Flash Tool while in Fastboot Mode (Power + Volume Down).