Download Redmi K40S Firmware

Redmi K40S

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

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

Model nameRedmi K40S
Release dateMarch 2022
SupportActive
Current OSHyperOS 1, Android 14

Latest HyperOS or MIUI firmware updates:

China HyperOS 1.0.10.0.ULMCNXM

The latest Chinese firmware 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 latest 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 latest 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
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