Não consigo instalar o Norton 360 em dispositivos Xiaomi

[Nestum]

Após adquirir o Norton 360 que permite instalar em 20 dispositivos, efetuei a instalação em Macbook e iPhone, tendo corrido tudo bem. Tentei instalar em tablet Xiaomi e telemóvel da mesma marca e não permite configurar na Proteção Essencial, a Otimização da Bateria, ou seja, a Permissão de Acesso em Segundo Plano. Consigo configurar a Sobreposição de Alertas no Ecrã, bem como, a Deteção em Tempo Real, mas após selecionar na Otimização da Bateria, Sem Restrições, não avança, so consigo regressar à imagem anterior sem esta configuração efetuada.
Já aconteceu a alguém ou sabem resolver?

[bjm]

@Nestum

I cannot install Norton 360 on Xiaomi devices.
After purchasing Norton 360, which allows installation on 20 devices, I installed it on a Macbook and iPhone, and everything went well. I tried installing it on a Xiaomi tablet and a phone of the same brand, but it doesn’t allow me to configure Battery Optimization in Essential Protection, specifically Background Access Permission. I can configure On-Screen Alert Overlay and Real-Time Detection, but after selecting “No Restrictions” in Battery Optimization, it doesn’t proceed; I can only revert to the previous screen without this configuration.
Has this happened to anyone else, or do you know how to solve it?

Hello @Nestum
Welcome to the Norton Community!

Yes, this is a very common issue specific to Xiaomi devices running MIUI or HyperOS.

Xiaomi’s aggressive built-in RAM and battery management systems often conflict with security apps like Norton 360. When you change the setting inside Norton, Xiaomi’s system overrides it behind the scenes, creating a loop where the permission refuses to register or save.

To fix this, you must grant the necessary permissions manually through your device’s Android settings rather than through the Norton setup screen. Follow these sequential steps on both your Xiaomi tablet and phone:

Step 1: Enable Background Autostart
Xiaomi blocks apps from staying alive in the background unless they are explicitly authorized to start themselves.

1. Long-press the Norton 360 app icon on your home screen and tap App Info (the “i” icon).
2. Locate the Autostart (or Background Autostart) toggle.
3. Turn it ON. If a warning popup appears, confirm it.

Step 2: Set Battery Saver to No Restrictions
Doing this from the App Info page forces Xiaomi’s system to accept the setting permanently.

1. Still inside the App Info page for Norton 360, scroll down and tap on Battery Saver.
2. Change the setting from “Smart/Battery Saver” to No Restrictions.
3. Back out of that menu to ensure it saves.

Step 3: Turn off “Pause App Activity”
Newer versions of Android/MIUI include a feature that revokes permissions if you do not open the app for a few days.

1. Still in App Info, look for Pause app activity if unused (or Remove permissions if app isn’t used).
2. Turn it OFF.

Step 4: Grant “Start in Background” Permissions
Xiaomi hides extra hidden toggles under a separate permission category that security apps need to run smoothly.

1. Still in App Info, tap on Other Permissions.
2. Look for Start in background and set it to Always allow.
3. Look for Display pop-up windows while running in the background and set it to Always allow.

Step 5: Force Close and Reopen

1. Swipe up from the bottom of your screen to open your recent apps panel and clear Norton 360 from memory.
2. Open Norton 360 again.

The app should now recognize that the system-level permissions match what it requires, bypassing the configuration loop.

Fixing Norton apps stopped by Android battery optimization
Set up App Security and Internet Security features in Norton 360 app on your Android device
Time Supervision and App Supervision in Xiaomi devices are not working as expected
System requirements to install and set up Norton protection

Xiaomi devices running MIUI or HyperOS feature a heavily customized version of Android that differs significantly from standard, “stock” Android. Known for deep personalization and high performance, they also contain highly aggressive background management tools designed to maximize battery life.

---

The Evolution: From MIUI to HyperOS

For over a decade, MIUI was the operating system powering Xiaomi phones and tablets. However, Xiaomi has transitioned its ecosystem to a new platform:

• MIUI (User Interface): A traditional Android skin heavily inspired by iOS design principles. It features an integrated Control Center, rich theme customizations, and built-in security suites.
• HyperOS (Ecosystem OS): Launched to replace MIUI, HyperOS is a restructured operating system built on a fusion of deep Android optimizations and Xiaomi’s proprietary Vela IoT system. It is designed to bridge smartphones, tablets, smart home devices, and even electric vehicles into a fluid ecosystem.

---

Key Architectural Characteristics

1. Aggressive Battery & RAM Management
   The most distinct operational characteristic of MIUI and HyperOS is their strict background restrictions. To hit high screen-on-time metrics, the system proactively freezes or terminates background tasks.

• The Challenge: Persistent background apps—like VPNs, smartwatch companion apps, and antivirus suites (such as Norton 360)—are frequently killed by the OS.
• The Solution: Users must explicitly flag these apps for “Autostart” and remove battery restrictions manually, as the system treats them as resource drains by default.

2. Dual Control Center & iOS-Inspired Design
   Unlike stock Android, which blends notifications and quick settings together, Xiaomi utilizes a split approach:

• Swiping down from the top-left reveals your notifications.
• Swiping down from the top-right reveals the Control Center, housing media playback controls, Wi-Fi toggles, and smart home shortcuts.

3. Advanced Multitasking (“Floating Windows”)
   Xiaomi devices handle tablet and large-screen multi-tasking exceptionally well. HyperOS introduces free-form Floating Windows, which allow you to keep mini-versions of apps open over other apps, drag and drop content between windows, and scale apps down to tiny screen anchors.

4. The Built-in “Security” App
   Xiaomi features a central native application called Security. It serves as an integrated command center managing data usage, blocklists, deep cleaning, app locks, and battery diagnostics. Because this native app operates at the system level, it frequently conflicts with third-party security software by trying to do the exact same background tasks.

---

Main Differences: MIUI vs. HyperOS

Feature	MIUI	HyperOS
System Footprint	Heavier, taking up more internal storage space.	Lightweight, highly optimized system firmware.
Connectivity	Connected devices handled via separate apps.	Integrated Xiaomi Interconnectivity hub for cross-device clipboards, screen mirroring, and file sharing.
Animations	Occasional micro-stutters on mid-range hardware.	Sub-surface rendering pipelines for highly fluid, natural physics animations.

Caveat: I don’t run Xiaomi tablet | phone
AI sourced content may make mistakes

[bjm]

@Nestum

I cannot install Norton 360 on Xiaomi devices.
After purchasing Norton 360, which allows installation on 20 devices, I installed it on a Macbook and iPhone, and everything went well. I tried installing it on a Xiaomi tablet and a phone of the same brand, but it doesn’t allow me to configure Battery Optimization in Essential Protection, specifically Background Access Permission. I can configure On-Screen Alert Overlay and Real-Time Detection, but after selecting “No Restrictions” in Battery Optimization, it doesn’t proceed; I can only revert to the previous screen without this configuration.
Has this happened to anyone else, or do you know how to solve it?

Hello @Nestum
Welcome to the Norton Community!

Installing Norton 360—or any third-party mobile security app—on a Xiaomi device creates a unique set of challenges.

While the software itself is fully compatible with Android, the way Xiaomi’s MIUI and HyperOS operate directly clashes with how security apps protect your device.

The core issues you will face when using Norton 360 on a Xiaomi phone or tablet include:

1. The “Ghost Protection” Effect
   Security apps rely on Real-Time Protection to scan files, monitor web traffic, and block malware the exact second it appears.

• The Issue: Because Xiaomi’s software aggressively kills background processes to save battery, it will quietly shut down Norton’s background engine.
• The Result: The Norton app might look like it is open, but its core protective shield has been put to sleep by the system, leaving you temporarily unprotected without you realizing it.

2. Broken Accessibility Permissions
   Features like Norton’s Web Protection (which blocks malicious links and phishing sites) require Android’s “Accessibility” permission to scan URLs in your browser.

• The Issue: Xiaomi’s operating system actively resets or turns off accessibility permissions for third-party apps if it deems them too resource-heavy.
• The Result: You will frequently open Norton only to find a red warning banner asking you to re-enable permissions you already granted last week.

3. Redundant Clashing Systems
   Xiaomi devices come pre-installed with a system-level Security App powered by native optimization engines.

• The Issue: When you install Norton 360, you essentially have two heavy security suites fighting for the exact same system resources, scanning the same files simultaneously, and trying to manage the same network traffic.
• The Result: This duplication often causes performance slowdowns, micro-stutters, and increased battery drain—the exact opposite of what Xiaomi’s software tries to achieve.

The Verdict: Is it worth using?
Yes, but only if you take control. Norton 360 provides excellent security features that Xiaomi’s native software lacks—such as a secure VPN, dark web monitoring, and robust Wi-Fi security.

However, it will only be effective if you manually lock the app in place (using the Autostart and No Restrictions settings outlined earlier) so Xiaomi’s aggressive software learns to leave it alone.

To see if your device is handling the app properly, try this test: leave Norton open, lock your device for 15 minutes, and then reopen it.

Did the app load instantly, or did it show a splash screen (meaning Xiaomi killed it in the background)?

Fixing Norton apps stopped by Android battery optimization
Set up App Security and Internet Security features in Norton 360 app on your Android device
Time Supervision and App Supervision in Xiaomi devices are not working as expected
System requirements to install and set up Norton protection

Norton documentation directly acknowledges this specific Android battery optimization issue.

Norton has published multiple support articles outlining how to handle aggressive battery restrictions on various phone brands, specifically naming Xiaomi MIUI layouts.

The primary official resources detailing this issue and how to resolve it include:

1. Main Fix Documentation: Apps Stopped by Android Battery Optimization
   In their core documentation on Fixing Norton apps stopped by Android battery optimization, Norton explicitly outlines the exact steps needed for Xiaomi systems.

The documentation confirms that because Xiaomi closes background processes, users must bypass the app’s internal prompt and manually change settings via the system menus:

• For newer MIUI/HyperOS versions: Go to Settings > Apps > Manage Apps > Norton 360. Toggle Autostart to ON, open Other Permissions to check background pop-ups, and change Battery Saver to No Restrictions.
• For older MIUI versions (MIUI 9 & 10): Navigate through Settings > Installed Apps > Norton, turning on Start in Background and changing the Manage apps battery usage behavior to No Restrictions.

2. Compatibility Alerts: Norton Family and Xiaomi Restrictions
   In a related documentation piece titled Time Supervision and App Supervision in Xiaomi devices are not working as expected, Norton addresses a critical limitation with Xiaomi’s operating system.

Norton explicitly warns that because Xiaomi’s firmware aggressively blocks persistent background hooks, certain “always-on” monitoring features may fail to stay green. They state that if a user follows the manual system permission overrides (Autostart and App Battery Saver) and the app status still refuses to turn green or saves improperly, the specific device configuration may not be fully supported by the app’s persistent background architecture.

Why the loop happens according to Norton’s architecture
Norton’s documentation on Setting up App Security features explains that during installation, the app triggers a standard Android Open prompt command to request background access.

On stock Android, tapping “Allow” hands over the permission instantly. However, because Xiaomi builds a non-standard security overlay on top of Android, it intercepts the prompt. When Norton requests the permission, Xiaomi tells the app it is blocked, causing the setup screen to reset without throwing an error message.

Caveat: I don’t run Xiaomi tablet | phone
AI sourced content may make mistakes

[Nestum]

Will try. Back to you later.
Thank you

[bjm]

Hello @Nestum
Care to share your progress

[bjm]

Hello @Nestum
Care to share your progress