Download Redmi K90 Pro Max/POCO F8 Ultra HyperOS 4 Update ROM
You can download Redmi K90 Pro Max/POCO F8 Ultra HyperOS 4 Update ROM on this page. The codename for Redmi K90 Pro Max/POCO F8 Ultra is myron. Both stable and beta Redmi K90 Pro Max/POCO F8 Ultra HyperOS 4 ROM updates are available for download here.
If you're looking to download HyperOS 4 update for other Xiaomi, Redmi, or POCO devices, click here. If you're looking for other HyperOS ROM updates, click here.
Info
All HyperOS 4 Update ROM files for Redmi K90 Pro Max/POCO F8 Ultra (myron) listed on MIUI Downloader are official and untouched. They're not modified, owned, or edited in any manner by MIUIDownloader.com.
NOTE
All HyperOS 4 Beta ROM links for Redmi K90 Pro Max/POCO F8 Ultra (myron) are collected from various sources on the internet since the official MIUI website no longer offers Beta ROM links. So you need a custom recovery to the Flash beta version, do it at your own risk.
Latest Redmi K90 Pro Max/POCO F8 Ultra HyperOS 4 ROM Updates
| Device | Branch | Type | HyperOS Version | Android | Size | Date | Link |
|---|---|---|---|---|---|---|---|
| Redmi K90 Pro Max China | Stable | Recovery | OS4.0.5.0.XPMCNXM | n/a | 10.2 GB | 2026-10-23 | Download |
| Redmi K90 Pro Max China | Stable | Fastboot | OS4.0.5.0.XPMCNXM | 17.0 | 13.2 GB | 2026-10-21 | Download |