App Duo on Android-smartphones Xiaomi: why you need and how it works

If you are the owner of a Xiaomi smartphone based on Android, you probably noticed in the list of installed programs mysterious app Duo. It appears on many devices of the brand – from budget Redmi to flagship Mi or POCO, But not everyone understands its purpose, and some even try to remove it as unnecessary "junk", unaware that Duo is Google's official service, integrated into the firmware. MIUI.

In this article, we will discuss in detail what Duo is, why it is needed on Xiaomi, how to use it and whether it can be disposed of without harming the system. You’ll also learn how this app differs from Google Meet or Zoom, and why it shouldn’t be confused with duplicate contacts in the phone book (this is another feature). MIUI, And that's what's sometimes called "doubles!

What is the Duo app on Xiaomi and why you need it?

Google Duo is a video calling app developed by Google as an alternative to Skype or WhatsApp, and its key feature is its simplicity and reliability, even with a weak Internet connection. On Xiaomi smartphones, it is preinstalled by default, as it is included in the Google Mobile Services package (GMS), without MIUI cannot work fully.

The main tasks of Duo:

• 📞 High quality video calls (up to) 720p or 1080p Depending on the smartphone model and Internet speed).
• 🔄 Automatic switching between Wi-Fi and mobile data if signal weakens.
• 🔒 Encryption of transmitted data (end-to-end for all calls).
• 🎉 Real-time effects and masks (such as emojis or background blurs).
• 📱 Cross-platform: runs on Android, iOS and even through a browser on a PC.

It’s important to understand that Duo is not the same as Google Meet, which is focused on group conferences and business meetings, while Duo is focused on personal calls between loved ones. For example, Duo can call even those contacts who do not have the application installed – they will receive a link to the call through the app. SMS.

How to distinguish Duo from other applications for calling on Xiaomi

Many users confuse Google Duo with other services, especially if the smartphone is installed MIUI-These are the key differences:

If you see Duo on the app list but have never used it, don't rush to remove it. on some Xiaomi models (e.g. Redmi Note 10 Pro or Google). POCO X3 Pro) is system-related and may affect other Google services such as Play Market or Gmail.

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To check if Duo is used on your Xiaomi, open Settings → Annexes → Manage applications and find it on the list. If you have 0B in Storage, you haven't used it.

How to use Google Duo on Xiaomi smartphone: step-by-step instructions

If you’re trying out Duo, here’s a simple algorithm:

1. Open the Duo app (a video camera icon with a green background) and you'll need to confirm your phone number through the first run. SMS.
2. Allow access to contacts, microphone and camera (without this, calls are impossible).
3. In the main menu, select a contact from the list or click Create a link to invite a friend to the list. SMS.
4. To start the call, tap the button with the video camera. To turn on audio only, select the phone icon.

During the call, you can:

• 🎨 Add effects (click on the emoji icon).
• 🔇 Turn off the microphone or camera (the corresponding buttons at the bottom of the screen).
• 📱 Switch to the rear camera (double tap on the screen).
• 📤 Send a video message if the subscriber does not respond.

Check the Internet speed (minimum 1 Mbit / s)

Close background applications to save resources

Put the phone on charge (calls consume battery)

Disable the power saving mode in the settings Xiaomi-->

If the call is interrupted or delayed, try:

• 🔄 Switch from Wi-Fi to Mobile Data (or vice versa).
• 📵 Shut down. VPN (if you use).
• 🔋 Close other apps that consume traffic (such as YouTube or TikTok).

Can you remove Duo from Xiaomi and how to do it?

On most Xiaomi models, the Duo app cannot be removed by standard means, as it is part of Google’s system services package, but there are several ways to get rid of it or at least disable it:

Method 1: Disconnect (without root rights)

1. Go to Settings → Applications → Application Management.
2. Find Duo in the list and tap it.
3. Click Disable (the button will become active if the application is not used as a system).

Method 2: Remove via ADB (for advanced users)

If the shutdown is not available, you can remove Duo using the ADB (Android Debug Bridge:

adb shell pm uninstall --user 0 com.google.android.apps.tachyon

⚠️ Warning: This method requires the developer mode on and PC connection. Wrong commands can disrupt the system!

Method 3: Removal through TWRP (only for the unlocked loader)

If your Xiaomi has custom recovery installed TWRP, You can manually delete the application file:

1. Download to TWRP (hold Power + Volume Up when enabled).
2. Go to Advanced → File Manager.
3. Delete the folder. /system/priv-app/PrebuiltGmsCoreDuo or /system/app/Duo (path may differ).

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Deleting Duo won’t affect other Google services (like Play Market or Gmail), but it can lead to bugs when you upgrade. If you’re not sure what you’re doing, you’d better just turn off the app.

Duo issues on Xiaomi and how to fix them

Despite its simplicity, Duo sometimes fails, and here are the most common problems and solutions:

1. Duo is not installed or updated

If you try to update your app through the Play Market, try:

• 🔄 Clear the cache of Play Market and Google Play Services in the app settings.
• 📥 Download APK-file from the official APKMirror website and install manually.
• 🔧 Check the date and time settings (should be automatic).

2.There is no sound or image during the call

This is most often due to permissions or conflict with other applications:

• 🔊 Check if the sound is turned off in the Duo itself (the microphone button at the bottom of the screen).
• 📵 Make sure that no other programs use the camera (like Instagram or Snapchat).
• 🔧 Reboot your smartphone – sometimes it resets driver conflicts.

3.Duo constantly sends notifications

If the app spams alerts, turn them off:

1. Click the Duo icon on the home screen → Information on the annex.
2. Tap Notifications. → Turn off all switches.

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After the update MIUI Duo started to brake, try clearing his cache: Settings → Annexes → Duo → Warehouse → Clear the cache. It won't delete your data, but it can eliminate the lags.

Alternatives to Duo on Xiaomi: what to use instead

If Google Duo isn’t right for you, consider other video calling apps, and here are the most popular options with their pros and cons:

If you care about quality, you'd better stay on Duo or go to Zoom, and if simplicity and friends are the priority, WhatsApp or Viber will be the best choice.

Duo and security: what you need to know Xiaomi users

One of the main advantages of Google Duo is end-to-end encryption, which means that your conversations are protected from listening, including Google itself.

• 🔐 Encryption works only for video and audio calls, but not for text messages (there are no such things in Duo).
• 📍 When you first call, the application can request access to geolocation – this is necessary to improve the quality of communication, but you can turn off in the settings.
• 📱 Duo automatically saves your call history, but you can manually delete them: → Call history → Delete everything.

⚠️ Note: If you use Xiaomi with Chinese firmware (MIUI China, some Duo features may be restricted due to local laws, such as video calls being recorded on servers in China. MIUI.

Also remember that Duo is the default Knock Knock feature, which shows live video of the caller before you even answer the call. If that bothers you, turn it off in the app settings.

FAQ: Frequent questions about Duo on Xiaomi