This page lists the latest official firmware for the Redmi K90 Pro Max / POCO F8 Ultra (codename myron) in 5 regions: Global, EEA (Europe), Indonesia, Taiwan, China. Every file links to Xiaomi’s own update servers and is checked against Xiaomi’s MD5 checksum. The same hardware is also sold as Redmi K90 Pro Max.
- Codename
myron - Newest stable build OS4.0.5.0.XPMCNXM (China, Oct 23, 2026)
- OS HyperOS 4, Android 17
- Software support Security updates until November 2031 (Xiaomi)
- Last checked Nov 8, 2026 22:37
Redmi K90 Pro Max / POCO F8 Ultra Firmware Downloads
Redmi K90 Pro Max / POCO F8 Ultra Global ROM
| Version | Type | Branch | Size | Released | |
|---|---|---|---|---|---|
| OS3.0.303.0.WPMMIXM HyperOS 3 · Android 16 |
Recovery ROM (.zip) | Stable | 8.4 GB | Oct 14, 2026 | Download |
| OS3.0.303.0.WPMMIXM HyperOS 3 · Android 16 |
Fastboot ROM (.tgz) | Stable | 10.9 GB | Sep 16, 2026 | Download |
Redmi K90 Pro Max / POCO F8 Ultra EEA (Europe) ROM
| Version | Type | Branch | Size | Released | |
|---|---|---|---|---|---|
| OS3.0.303.0.WPMEUXM HyperOS 3 · Android 16 |
Recovery ROM (.zip) | Stable | 8.4 GB | Oct 14, 2026 | Download |
| OS3.0.303.0.WPMEUXM HyperOS 3 · Android 16 |
Fastboot ROM (.tgz) | Stable | 9.9 GB | Sep 20, 2026 | Download |
Redmi K90 Pro Max / POCO F8 Ultra Indonesia ROM
| Version | Type | Branch | Size | Released | |
|---|---|---|---|---|---|
| OS3.0.303.0.WPMIDXM HyperOS 3 · Android 16 |
Recovery ROM (.zip) | Stable | 8.4 GB | Oct 14, 2026 | Download |
| OS3.0.303.0.WPMIDXM HyperOS 3 · Android 16 |
Fastboot ROM (.tgz) | Stable | 10.1 GB | Sep 20, 2026 | Download |
Redmi K90 Pro Max / POCO F8 Ultra Taiwan ROM
| Version | Type | Branch | Size | Released | |
|---|---|---|---|---|---|
| OS3.0.303.0.WPMTWXM HyperOS 3 · Android 16 |
Recovery ROM (.zip) | Stable | 8.3 GB | Oct 14, 2026 | Download |
| OS3.0.303.0.WPMTWXM HyperOS 3 · Android 16 |
Fastboot ROM (.tgz) | Stable | 9.3 GB | Sep 20, 2026 | Download |
Redmi K90 Pro Max / POCO F8 Ultra China ROM
| Version | Type | Branch | Size | Released | |
|---|---|---|---|---|---|
| OS4.0.5.0.XPMCNXM HyperOS 4 · Android 17 · Redmi K90 Pro Max |
Recovery ROM (.zip) | Stable | 10.2 GB | Oct 23, 2026 | Download |
| OS4.0.5.0.XPMCNXM HyperOS 4 · Android 17 · Redmi K90 Pro Max |
Fastboot ROM (.tgz) | Stable | 13.2 GB | Oct 21, 2026 | Download |
| OS3.0.4.0.WPMCNXM HyperOS 3 · Android 16 · Redmi K90 Pro Max |
Recovery ROM (.zip) | Pilot (staged rollout) | 9.4 GB | Oct 23, 2025 | Download |
Firmware data: official Xiaomi servers, tracked by XiaomiFirmwareUpdater.
Which ROM Does My Redmi K90 Pro Max / POCO F8 Ultra Need?
Open Settings → About phone and look at the OS version. The two letters before XM at the end show your region:
| Region | Ends with | Example |
|---|---|---|
| Global | MIXM |
OS3.0.303.0.WPMMIXM |
| EEA (Europe) | EUXM |
OS3.0.303.0.WPMEUXM |
| Indonesia | IDXM |
OS3.0.303.0.WPMIDXM |
| Taiwan | TWXM |
OS3.0.303.0.WPMTWXM |
| China | CNXM |
OS4.0.5.0.XPMCNXM |
Install a ROM of the same region your phone already runs. A different region needs an unlocked bootloader and a Fastboot ROM.
How to Install Redmi K90 Pro Max / POCO F8 Ultra Firmware
Recovery ROM (no PC, keeps your data)
- Download the Recovery ROM (
.zip) for your region and move it to the root of the internal storage. - Open Settings → About phone, tap the OS version card, then the three dots → Choose update package.
- Select the ZIP and wait until the phone installs it and reboots.
Fastboot ROM (PC, clean install)
- Unlock the bootloader first: HyperOS bootloader unlock guide.
- Install ADB, Fastboot and USB drivers and Mi Flash Tool.
- Extract the
.tgzwith 7-Zip, boot the phone into Fastboot (Power + Volume Down) and check the codename withfastboot getvar product: it must saymyron. - Select the ROM folder in Mi Flash, choose Clean all and click Flash.
Warning: never use Clean all and lock with a ROM from a different region or with any modified software. Re-locking a mismatched phone makes it unbootable.
FAQ
What is the latest firmware for the Redmi K90 Pro Max / POCO F8 Ultra?
- Global: OS3.0.303.0.WPMMIXM (Stable, Oct 14, 2026)
- EEA (Europe): OS3.0.303.0.WPMEUXM (Stable, Oct 14, 2026)
- Indonesia: OS3.0.303.0.WPMIDXM (Stable, Oct 14, 2026)
- Taiwan: OS3.0.303.0.WPMTWXM (Stable, Oct 14, 2026)
- China: OS4.0.5.0.XPMCNXM (Stable, Oct 23, 2026)
How long will the Redmi K90 Pro Max / POCO F8 Ultra get updates?
According to Xiaomi’s official support list, the Redmi K90 Pro Max / POCO F8 Ultra (listed as “POCO F8 Ultra”) receives security updates until November 2031, counting from its launch in November 2025. Major HyperOS and Android upgrades usually stop earlier than security patches. Source: Xiaomi Security Center.
Are these files official?
Yes. Every download goes straight to Xiaomi’s servers (bigota.d.miui.com or Xiaomi’s Aliyun storage). We don’t host or modify the files. Compare the MD5 shown on the download page after downloading.
Recovery or Fastboot ROM: which one should I download?
Use the Recovery ROM to update without a PC and keep your data. Use the Fastboot ROM with Mi Flash to fix a bootloop, change region or do a clean install. It needs an unlocked bootloader and erases the phone.