MSA on Xiaomi Redmi 7A: a complete guide to the system application Mi Security

The Xiaomi Redmi 7A is one of the brand’s most popular budget smartphones, but even it has features that many users don’t know about. One is MSA (Mi Security App), a system app that works in the background and affects performance, battery and even privacy. If you notice that your Redmi 7A has become slower, faster to discharge or send suspicious data, MSA may be the culprit.

In this article, we will take a closer look at what MSA is on the Xiaomi Redmi 7A, why the company needs it, how to turn it off (and whether to do so), and what alternatives exist to optimize the smartphone, how to check MSA activity, what permissions it uses, and how to minimize its impact on the device without risking security.

Important: The information is relevant for the Redmi 7A based on MIUI 10/11/12 (including global and Chinese firmware versions).Some methods may differ for other Xiaomi models or newer versions of MIUI.

What is MSA and why you need it in Xiaomi Redmi 7A

MSA (Mi Security App) is a system application preinstalled on all Xiaomi smartphones, including the Redmi 7A. It performs several key functions:

• 🔍 Security scanner: Checks installed applications for viruses and malicious code (similar to Google Play Protect, but from Xiaomi).
• 📊 System monitoring: monitors process activity, battery consumption and traffic in real time.
• 🔄 Security Update: Uploads patches to protect against vulnerabilities (sometimes without the user’s knowledge).
• 📱 Remote management: allows you to block or erase data on your device through your Mi Account (useful for theft).

On paper, MSA looks like a useful tool, but in practice, it often causes:

• ⚡ Increased battery consumption (up to 15-20% per day on standby, according to Redmi user tests 7A).
• 🐢 Slowing down due to constant background scanning.
• 📶 Unauthorized traffic (MSA can send data to Xiaomi servers even without actively using a smartphone).

MSA is essentially a combination of antivirus, telemetry, and remote administration tools, which are required in China to comply with local cybersecurity laws, but its usefulness is controversial in global firmware.

How to check the activity of MSA Redmi 7A

Before you turn off the MSA, make sure it actually affects your smartphone.

1. Open Settings → Applications → Application Management.
2. Type Security or MSA (the name may vary depending on the version of MIUI).
3. Click on the Mi Security (or Security App) app.
4. Check the Battery Use, Mobile Data and Permits sections.

Pay attention to:

• 🔋 Battery consumption: If MSA consumes more than 5% per day, that’s a lot.
• 📥 Traffic: The app can send data even in the background (check Settings → SIM-maps and mobile networks → Traffic).
• 🔄 Autorun: If MSA starts itself (see Settings → Permissions → Autorun), it brakes the system.

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If there is no MSA in the app list, try to find it through Settings → About Phone → MIUI version (tap 7 times, then go back to Settings and find the hidden menu for Developers → Service Apps).

You can also use third-party monitoring tools, such as:

• AccuBattery (shows detailed battery consumption by application).
• NetGuard (Traces MSA Network Activity).

Can I remove the MSA completely with Redmi 7A?

Technically, yes, but with reservations. MSA is a system application, so:

• ✅ No root rights: You can only disable or restrict (see next section).
• ⚠️ With root rights: You can delete completely, but it disrupts MIUI (system applications may stop updating, some features may not be available).

If you have decided to remove the MSA,

1. Get root (for example, through Magisk or TWRP).
2. Use Root Explorer or Titanium Backup to delete files: /system/priv-app/MiuiSecurity/ /system/app/SecurityCenter/
3. Reset the device.

⚠️ Warning: Deleting MSA can result in: Stopping security updates from Xiaomi; Find Device Failure; Errors in MIUI (e.g., losing access to privacy settings); We recommend that you try disabling MSA first, and delete only as a last resort.

How to turn off MSA on Redmi 7A

If you don’t want to risk system stability but want to reduce the impact of MSA, follow this guideline:

Limit background activity | Remove autostart | Disable notifications |Block access to data-->

1. Limit background activity: Go to Settings → Annexes → Application management → Mi Security → Battery and select Limit background activity.
2. Turn off AutoRun: In the same app menu, find AutoRun and deactivate it.This will prevent the MSA from automatically starting when the phone is turned on.
3. Block Internet access: In Settings → SIM- Cards and Mobile Networks → Application Traffic Find Mi Security and turn off Mobile Data and Wi-Fi.
4. Turn off notifications: In the Mi Security app settings, go to Notifications and deactivate all options.
5. Remove from the optimization exceptions: In Settings → Battery and Performance → Battery Optimization, find Mi Security and select Limit.

After these actions, the MSA will only work when manually started (for example, to check for viruses), its effect on the battery and performance will be reduced by 70-80%.

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Even after the shutdown, the MSA continues to scan the installed applications when they first run, and to avoid this, turn off the Security Scanner option in the app settings.

MSA and Privacy: What Does Xiaomi Send?

One of the main concerns of Redmi 7A users is the collection of data through MSA. According to independent studies (for example, from XDA Developers and Privacy International), the application can send to Xiaomi servers:

Xiaomi claims that all data is anonymized and used only to improve services. However, in 2020, the company was caught collecting data on browser activity (including browsing history) even in incognito mode.

How to defend yourself:

• 🔒 Turn off "Personalization of Services" in Settings → Privacy → Special Permissions.
• 🌐 Use VPN (e.g., ProtonVPN) to hide MSA traffic.
• 🛡️ Install an alternative DNS (e.g., 1.1.1.1 from Cloudflare) to block suspicious requests.

⚠️ Warning: In Chinese versions, Redmi 7A (with firmware for the Chinese market) MSA collects significantly more data, including location and contacts. If you bought the phone in China, we recommend that you reflash it to the global version MIUI.

Alternatives to MSA: What apps can you use instead

If you have disabled the MSA but want to keep basic protection, consider these alternatives:

For maximum safety, we recommend a combination of:

• 🛡️ Bitdefender (antivirus) + NetGuard (firewall).
• 🔋 AccuBattery (Battery Monitoring) + Greenify (Background Optimization)

If you are interested in confidentiality, also set:

• AppOps (to manage application permissions without root).
• TrackerControl (blocking trackers from Facebook, Google, etc.)

Frequent MSA issues on Redmi 7A and their solutions

Redmi 7A users often face the following MSA-related issues:

1. MSA is constantly on itself: Reason: Autostart or update MIUI resets settings. Solution: disable autostart (see section above) and install DisableService (requires ADB) to block MSA services: adb shell pm disable-user --user 0 com.miui.guardprovider
2. Phone brakes after MSA shutdown: Reason: Some system processes depend on MSA (e.g., checking app signatures). Solution: Cache reset to Settings → Memory → Cleanup.
3. Security updates don't work: Reason: MSA is responsible for downloading patches. Solution: Manually update through Settings → About Phone → System Update.
4. MSA doesn't scan applications: Reason: Scanner is disabled or Internet is out. Solution: Check settings in Security → Scanner.

If the phone has become unstable after manipulating MSA (for example, restarting or issuing errors), try:

• Reset the settings to factory (Settings → Additional → Resetting).
• Flash the device through the Mi Flash Tool (instructions are available on 4PDA).

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If the system updates stopped working after the MSA was turned off, check if you accidentally deleted the Updater app (com.android.updater).

FAQ: answers to frequent questions about MSA on Xiaomi Redmi 7A