Download Redmi K90 Pro Max / POCO F8 Ultra (myron) OS4.0.5.0.XPMCNXM HyperOS Stable Full Rom

The Stable update OS4.0.5.0.XPMCNXM has been officially released for Redmi K90 Pro Max / POCO F8 Ultra (codename is myron). 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: Redmi K90 Pro Max / POCO F8 Ultra ROM Topics Xiaomi Devices Index

China Recovery ROM

Download Redmi k90 pro max (myron) China HyperOS OS4.0.5.0.XPMCNXM Recovery ROM with Android 17.0. Firmware size is 11.0 GB.

HyperOS Version: OS4.0.5.0.XPMCNXM
HyperOS Code: N/A
Android OS: 17.0
Region: China
Device Name: Redmi k90 pro max
Device Codename: myron
Type: Stable
Flash Method: Recovery
Size: 11.0 GB
Release Date: 2026-10-23
Filename: myron-ota_full-OS4.0.5.0.XPMCNXM-user-17.0-e2d9be411c.zip
MD5: N/A
Download: Xiaomi Server #2 Xiaomi Server #3 Xiaomi Server #4 Xiaomi Server #5

China Fastboot ROM

Download Redmi k90 pro max (myron) China HyperOS OS4.0.5.0.XPMCNXM Fastboot ROM with Android 17.0. Firmware size is 14.2 GB.

HyperOS Version: OS4.0.5.0.XPMCNXM
HyperOS Code: N/A
Android OS: 17.0
Region: China
Device Name: Redmi k90 pro max
Device Codename: myron
Type: Stable
Flash Method: Fastboot
Size: 14.2 GB
Release Date: 2026-10-21
Filename: myron_images_OS4.0.5.0.XPMCNXM_20261021.0000.00_17.0_cn_6a7d5f8f04.tgz
MD5: N/A
Download: Xiaomi Server #2 Xiaomi Server #3 Xiaomi Server #4 Xiaomi Server #5