How to install WhatsApp on Xiaomi Redmi 9 phone: all ways 2026

Xiaomi Redmi 9 remains one of the most popular budget smartphones even years after its release, but many users face difficulties when installing WhatsApp messenger — the application is not in the Play Market, then there are errors in registration, the system blocks the installation of the WhatsApp messenger. APK. In this article, we will analyze all the current ways to install WhatsApp on Redmi 9, taking into account the features of the firmware. MIUI regional restrictions.

It's important to understand that the process may vary depending on your phone's firmware version. For example, on Redmi 9 with global firmware (MIUI WhatsApp is usually available in the Play Market and in the Chinese version (MIUI China is not there because of local restrictions, and we'll look at solutions for everything from standard installation to bypassing locks.

If you just bought a used Redmi 9 or reset, first check if WhatsApp is installed as default in the Google folder or Communication. Sometimes the app is hidden and does not appear on the home screen.

1. Verify Redmi 9 compatibility with WhatsApp

Before installing, make sure your Xiaomi Redmi 9 meets WhatsApp's minimum requirements.Official system requirements for 2026:

• 📱 Android 5.0 and above, Redmi. 9 It works on Android 10/11 s MIUI 12-14, So there's no problem.
• 📶 Active Internet connection – Wi-Fi or mobile data (WhatsApp does not work without a network).
• 📞 Current telephone number – registration will be required SIM-card SMS.
• 🔋 Battery charge at least 20% — installation and adjustment may take up to 10-15 minute.

Redmi 9 with firmware MIUI China (Chinese version) WhatsApp is blocked by default due to local laws, in which case you will need to bypass the restrictions through the Internet. APK or change of region in settings.

If you don’t know your firmware version, check it in Settings. → The phone. → Version. MIUI. For example, the inscription MIUI Global 14.0.2 stands for Global Firmware.

2. Install WhatsApp via Play Market (the easiest way)

If your Redmi 9 is running on global or European firmware, WhatsApp must be available in the Play Market.

1. Open the Play Market app (color triangle icon).
2. In the search bar, type in WhatsApp and select the official app from WhatsApp. LLC.
3. Click Install and wait for the download to be completed.
4. After installation, open WhatsApp and follow the registration instructions (you will need to enter the phone number and confirm it through the app). SMS).

If WhatsApp is not on the search, try:

• 🔄 Update Play Market and Google Play Services to Settings → Annexes → Application management.
• 🌍 Change region in the Play Market (if you are in a restricted country, such as China or Iran).
• 🧹 Clear Play Market Cache in Settings → Annexes → Google Play Store → Warehouse → Clear the cache.

Update Google Play Services|

Check your Internet connection |

Clear the Play Market | cache

Make sure you have enough space on your phone (at least 200 MB)-->

The error "Device not certified"? Which means your Redmi 9 didn't pass Google's check.

1. Go to google.com/android/uncertified.
2. Enter yours. IMEI (You can find it in the settings. → The phone. → General information → IMEI).
3. Register the device and restart the phone.

3.Install WhatsApp via APK (If you do not have access to the Play Market)

If you are using Chinese firmware (MIUI China) or for other reasons you can’t download WhatsApp from the Play Market, you will have to install the application manually through the Play Market. APK-It's safe if you download the file from an official source.

Step-by-step:

1. Open your browser on Redmi 9 (like Google Chrome or Mi Browser).
2. Go to the official WhatsApp website to download APK: whatsapp.com/android.
3. Click Download now and wait for the file to be downloaded. WhatsApp.apk.
4. After downloading, open the file (usually it appears in notifications or in the Download folder).
5. If the warning “Installation is blocked” appears, click Settings and allow installation from this source.
6. Complete the installation and open WhatsApp to register.

It's important, never download it. APK From third-party sites, this can be dangerous (viruses, spyware.

Redmi 9s. MIUI China may not send WhatsApp after installation SMS-Confirmation code:

• 📱 Put it in. SIM-card of another operator (for example, Beeline or Megafon).
• 🌐 Connect to Wi-Fi and request the code via call (Call Me option on WhatsApp).
• 🔄 Restart your phone and try again.

4. Install WhatsApp via Mi App Store (alternative to Chinese firmware)

Redmi 9 with firmware MIUI China instead of Play Market uses the branded store Mi App Store (or GetApps). WhatsApp there, but can be called differently (for example, - Cyrillic name).

How to find and install:

1. Open the GetApps app (the icon with the blue robot).
2. In the search bar, type WhatsApp or.
3. Select the official application (developer – WhatsApp Inc.).
4. Click Set and wait until it is completed.

If WhatsApp is not available, try:

• 🔍 Use it. VPN (for example, Turbo VPN 1.1.1.1) and connect to a server in the United States or Europe.
• 📥 Download APK via the browser (as described in the previous section).
• 🌍 Change region in phone settings to India or USA (Settings) → Additionally. → Language and region).

💡

If WhatsApp doesn’t send messages after installation, check if the Firewall blocks them. MIUI. Go to Settings. → Annexes → Permits → Autostart and enable Autostart for WhatsApp.

5. Solving WhatsApp registration issues on Redmi 9

Even after successfully installing WhatsApp on Redmi 9, users often experience login errors, and consider the most common problems and solutions.

🔹 Error: "Impossible to send" SMS confirmation-coded"

This is a problem for Redmi 9 with Chinese firmware.

• 📵 SIM-The card does not support international SMS (relevant to Chinese operators).
• 🚫 Operator locks in. SMS WhatsApp (found in some countries).
• 📡 Poor network coverage.

Decisions:

• 📞 Request the code through the call (click "Call me" in the number entry window).
• 🔄 Restart your phone and try again.
• 📶 Turn off Wi-Fi temporarily and use only mobile internet.
• 🆔 Try a different phone number (for example, a virtual phone number via Google Voice).

🔹 Error: This number is already used on WhatsApp"

This means your number is linked to another account, and there are possible reasons:

• 📱 You have previously used WhatsApp on another phone and have not deleted your account.
• 🤖 Someone else has registered your number (for example, when buying a used phone).

Decisions:

1. If you have access to an old phone, delete WhatsApp via Settings. → Account. → Delete my account.
2. If you don’t have access, wait 30 days for your account to be deleted automatically.
3. Write in support of WhatsApp via the form wa.me.

🔹 Error: WhatsApp cannot connect to servers"

This problem often arises from:

• 🔒 Blocking by the provider (relevant for China, Iran, UAE).
• 🛡️ Firewall work MIUI.
• 📡 Internet connection problems.

Decisions:

• 🌐 Connect. VPN (For example, ProtonVPN or Windscribe).
• 🔄 Restart your router or switch to mobile data.
• 📵 B Settings → Annexes → WhatsApp → Battery Disconnect Battery Optimization.
• 🕒 Check the date and time on the phone (Settings) → Additionally. → Date and time – Enable Autodetermination).

💡

If WhatsApp doesn’t work after installation, check permissions first: Settings → Annexes → WhatsApp → Permissions – Enable access to contacts, storage, microphone and camera.

6.Optimize WhatsApp on Redmi 9 to save battery and traffic

The Redmi 9 doesn’t have a powerful battery (5020 mAh), and WhatsApp can significantly reduce battery life.

🔋 Battery savings

• 📵 Turn off Media Autoupload in WhatsApp settings (Storage) → Autoboot media).
• 🔕 Limit background activity: Settings → Annexes → WhatsApp → Battery → Background activity → Limit.
• 🌙 Enable Dark Theme on WhatsApp (Settings) → Topics → Dark).
• 🔔 Disable notifications from groups (Settings) → Notifications → Group notifications).

📡 Saving traffic

• 📥 Turn off autoloading photos and videos in mobile data (Settings) → Warehouse → Autoboot media → Mobile data → Never).
• 🎵 Turn off automatic voice messages playback.
• 📊 Use the Data Saving Mode in MIUI (Settings → Connections → Saving traffic).

If WhatsApp is heating your phone or draining your battery quickly, check:

• 🔍 No viruses (scan your phone through Google Play Protection or Avast).
• 📦 Is storage clogged (WhatsApp can slow down when space is scarce).
• 🔄 Does WhatsApp work in the background without your knowledge (check Settings) → Battery → Battery utilization).

7.How to transfer WhatsApp chats from another phone to Redmi 9

If you are switching to Redmi 9 from another smartphone and want to save your correspondence history, use the official WhatsApp backup function. Importantly, transfer is only possible between Android devices (from iPhone to Redmi 9 chat transfer is not officially supported).

Step-by-step:

1. On your old phone, open WhatsApp and create a backup: Go to ⋮ → Settings → chat → Backup. Click Create a copy (connect to Wi-Fi if necessary). Wait until completed (copy saved to Google Drive).

Redmi 9

Restore

Wait for the download to be completed (can take anywhere from a few minutes to an hour depending on the size of the backup).

Important nuances:

• 🔗 Backup is tied to your phone number and Google account.Make sure you use the same Google account on Redmi 9 as you did on your old phone.
• 📅 Google Drive copy is stored for 1 year.If you haven't done a backup in a long time, history may be lost.
• 📱 If you are switching from an iPhone, you can’t officially transfer chats to Redmi 9.The alternative is to use third-party programs (like Backuptrans), but it’s not secure.

💡

Before you move chats, check if there's enough space on Redmi 9. WhatsApp history can weigh a few gigabytes. Clear unnecessary files in Settings → Warehouse.

If the recovery is suspended during the loading stage:

• 🔄 Restart your phone and try again.
• 📶 Connect to stable Wi-Fi (mobile internet can stop downloading).
• 🔋 Make sure the battery is at least 50% charged (the process can take a long time).

8.Alternative messengers for Redmi 9 (if WhatsApp doesn't work)

If you’ve never been able to install WhatsApp on Redmi 9 or it’s constantly crashing, consider alternative messengers, many of which consume fewer resources and are better optimized for budget smartphones.

If you choose Telegram, we recommend you install the Telegram X version – it is optimized for weak smartphones and runs faster on Redmi 9.

How to transfer your WhatsApp contacts to another messenger:

1. On WhatsApp, export chats: ⋮ → Settings → chat → Chat export (select dialog and save as text file).
2. Open the file on Redmi 9 and copy important messages.
3. In the new messenger, manually add contacts (or use the import function, if any).

💡

If WhatsApp is essential to work but not installed, consider buying a Redmi Note with global firmware or your Redmi 9 firmware on the Internet. MIUI Global (but this is risky and may result in loss of warranty).

FAQ: Frequent questions about installing WhatsApp on Redmi 9