Download Redmi K40S Firmware

Redmi K40S

Official Redmi K40S firmware (codename munch) includes stable HyperOS and MIUI versions. They can be downloaded as Fastboot ROM, Recovery ROM, and OTA updates.

Phone models: 22021211RC (China). All files are original stock Xiaomi ROMs, freely available from miui.com. We simply provide direct download links to official flash files and system updates.

Model nameRedmi K40S
Release dateMarch 2022
SupportActive
Current OSHyperOS 1, Android 14
Latest firmware updates:

China HyperOS 1.0.10.0.ULMCNXM

The latest Chinese HyperOS version for Redmi K40S by Xiaomi:

Recovery ROM

Version
1.0.10.0.ULMCNXM
OS
HyperOS 1
Android
Android 14
Release date
2025-04-14
File size
5.33 GB
Official Link
Download (.zip)
Changelog
Expand list

Fastboot ROM

Version
1.0.10.0.ULMCNXM
OS
HyperOS 1
Android
Android 14
Release date
2025-04-02
Flash file size
6.42 GB
Official Link
Download (.tgz)
Changelog
Expand list

OTA Update

Version
1.0.10.0.ULMCNXM
File size
410.89 MB
Apply for
1.0.8.0.ULMCNXM
Official Link
Download (.zip)

The new HyperOS or MIUI update is not necessarily the best. Before updating Redmi K40S (munch), read reviews on 4PDA or XDA Developers. If installing a Flash File, full ROM, or the new OTA update caused issues, please let us know in the comments and mention the version number.

Other models in this series:
Redmi K40 Gaming
Redmi K40 Gaming
Redmi K40 Pro
Redmi K40 Pro / Pro Plus
Redmi K40
Redmi K40
MIUI ROM
Add a comment

Subscribe to our Telegram where we post when new firmware and updates are released.