Official REDMI K40S firmware (codename munch) includes the latest stable HyperOS 1 update with Android 14 and all original previous versions, in Fastboot ROM flash file, Recovery ROM, and OTA formats.
Phone models: 22021211RC (China). All files are stock Xiaomi ROMs, downloaded directly from Xiaomi servers. We provide direct download links to official firmware, system and software updates.
Latest firmware updates:
- 53 ChinaHyperOS 1.0.15.0.ULMCNXM
- Release›MIUI 13 Android 12
- Nov 2022››MIUI 13 Android 13
- Jan 2023›››MIUI 14 Android 13
- Mar 2024››››HyperOS 1 Android 14
China HyperOS 1.0.15.0.ULMCNXM
The latest Chinese HyperOS version for REDMI K40S:
China Recovery ROM
- Version
- 1.0.15.0.ULMCNXM
- OS
- HyperOS 1
- Android
- Android 14
- Release date
- 2026-03-27
- File size
- 5.33 GB
- Official link
- Download (.zip)
- Changelog
- Expand list
China Fastboot ROM (flash file)
- Version
- 1.0.15.0.ULMCNXM
- OS
- HyperOS 1
- Android
- Android 14
- Release date
- 2026-03-06
- Flash file size
- 6.24 GB
- Flash file link
- Download (.tgz)
- Changelog
- Expand list
OTA Update
- Version
- 1.0.15.0.ULMCNXM
- File size
- 13.81 MB
- Apply for
- 1.0.12.0.ULMCNXM
- Official link
- Download (.zip)
Download previous Chinese firmware updates for REDMI K40S:
REDMI K40S has reached EOL (end-of-life) status in Xiaomi's official catalog: support has ended, new firmware and security patches are no longer released, and the device will not receive HyperOS 2.
The new HyperOS 1 update is not necessarily the best. Before updating REDMI K40S (munch), read reviews on XDA Developers or the Mi Community forum. If installing a Flash File, full ROM, or the new OTA update caused issues, please let us know in the comments and mention the firmware region and version number.
