What is Xiaomi HyperOS?

HyperOS is Xiaomi’s new unified operating system—replacing MIUI—that runs across phones, tablets, TVs, wearables, and IoT devices. It’s built on Android AOSP with Xiaomi’s own Vela microkernel for better performance, security, and cross‑device integration.

How do I update to HyperOS?

On a supported device, go to Settings > About phone > System update . Tap the three‑dot menu, choose Update package, and follow the prompts.

Xiaomi HyperOS vs. MIUI

Performance: HyperOS is lighter and more memory‑efficient. UI & Customization: New design, fresh animations, and widget options. Cross‑Device: Supports better integration across Xiaomi ecosystem. Privacy: Enhanced permission controls and sandboxing.

Does Xiaomi HyperOS have ads?

HyperOS comes mostly ad-free in system apps, though some pre-installed third-party apps may show ads which can be disabled.

How do I install HyperOS on my device?

Check eligibility: Ensure your phone is on Xiaomi’s supported list. Backup data: Use Mi Cloud or backup manually. Download ROM: From Xiaomi's official website. Unlock bootloader: Via Mi Unlock Tool. Flash: Use fastboot commands.

Download 9.3.21 firmware for Redmi Note 4 MTK, nikel_global, Weekly,

Note that this page shows the 9.3.21 update for Redmi Note 4 MTK, nikel_global only. If you're looking for other updates for this same codename, please check here.

Redmi Note 4 MTK

Codename: nikel_global

Branch: Weekly

Version: 9.3.21

Android: 6.0

Region: Global

Update Date: 2019-03-22

Method: Fastboot

Download Link: Download

Frequently Asked Questions

Latest HyperOS, MIUI and Android versions

We daily check the release of new HyperOS & MIUI updates and available Android versions for Xiaomi, Mi, Redmi, and POCO smartphones, and we add them to a chart for your convenience.