How to set up Xiaomi Mi 9A: full-lead

Xiaomi Mi 9A — It's a budget smartphone with a great price-performance ratio, but its potential will only be realized when you set it up properly, and many users face problems after buying: slow operation, fast battery drain or sensors that are not working properly. This article will help you avoid typical errors and customize the device to your needs - from basic parameters to hidden functions. MIUI.

We will analyze not only the standard stages (language, Wi-Fi, account), but also advanced tricks: how to turn off advertising in the Internet. MIUI, Optimize autonomy, adjust gestures and even accelerate performance through the engineering menu. 9A, including Chinese and global (subject to specifics).

Important: If you purchased a device with root rights or custom firmware, some items may differ. For these cases, we added separate guidelines at the end of the article.

First Installing and Basic Setup

After removing the smartphone from the box, insert the first thing SIM-card and memory card (if you plan to use it). 9A Supports nano-SIM support + microSD (up to 256 GB), but the second slot is hybrid – you will have to choose between the second one. SIM memory-expansion.

When you first turn on, it will tell you to choose a language. If you don't have Russian on the list, then you have Chinese firmware - you will have to install a global version. MIUI (instructions in the section about firmware. Next, follow the setup wizard:

• 🌐 Wi-Fi Connection: Choose your network and enter your password. Without the Internet, you can't download updates and sync your account.
• 🔑 Xiaomi account: register a new account or sign in to an existing one. This is a must for cloud services and theme store.
• 🔄 Data recovery: If you have previously used Xiaomi, you can transfer settings and files via Mi Cloud or from another device over Bluetooth.
• 🛡️ Protection: install PIN-code, pattern lock or fingerprint (scanner on the back panel).

⚠️ Note: if you skip creating a Xiaomi account, some features (such as device search or note sync) will not be available.

After completing the setup wizard, check the version MIUI In Settings → The phone, if it's outdated (below). MIUI 12.5), update the firmware manually – this will fix most bugs out of the box".

Optimizing performance and memory

Mi 9A It's powered by a Snapdragon 625 processor and 2 to 4 GB of RAM -- not the most powerful chipset, but when you set it right, it runs smoothly.

Start by cleaning up the cache and unnecessary data:

1. Go to Settings. → Memory and press "Clear".
2. In the "Storage" section, remove unnecessary items. APK-file-up.
3. Open Security. → Clean up and run a deep check.

To speed up work, turn off the animation interface:

• 🔧 Activate Developer Mode: Go to Settings → About the phone and 7 times click on "Version" MIUI".
• Back to Settings → Additionally. → For developers.
• Find the items "Window animation", "transition animation" and "Duration of the animator", set the value 0.5x Or shut it down completely.

Critical setting for Mi 9A: in the developer menu, disable "Restriction of background processes" - this will prevent spontaneous closure of applications.

Battery and autonomy setting

Mi's weak spot 9A — 3,000 mAh battery. When used actively, the smartphone will run out in 6-8 hours, but the right settings will help extend the battery life by 20-30:

• 🔋 Lower your phone to 0% and turn it off.
• Charge to 100% without powering on.
• Repeat the cycle 2-3 times – this will reset the errors of the power controller.

Optimize your energy consumption:

1. Go to Settings → Battery and Performance → Battery Use.
2. Turn off Adaptive Brightness and set a fixed value of 50-60%.
3. In the section "Battery consumption by application" limit background activity for instant messengers and social networks.
4. Activate the "Saving Charge" mode in the notification curtain at a charge level of 20%.

For advanced users: in the engineering menu (#4636##) you can turn off unnecessary radio modules (for example, LTE Band 20, if your carrier doesn't use it, it will reduce network search and save you power.

⚠️ Warning: If the battery is swollen or the phone turns off at 30-40% charge, this is a sign of battery wear. ~1500–2000 ₽).

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Use dark themes and wallpaper: AMOLED-mi 9A It uses less power when you display black. Set a dark theme in Settings. → Screen. → Topics

Network and Internet setting

Mi 9A supportive 4G LTE, But it's not the default speed, it's not the maximum speed:

1. Go to Settings. → SIM-maps and mobile networks → Mobile network settings.
2. Select a mode. 4G (recommended or Only 4G (if 3G needless).
3. Turn on Volte for clearer calls via 4G.

To speed up the Internet via Wi-Fi:

• 📶 Switch to the 5GHz band (if the router supports it).
• 🔄 In Wi-Fi settings, disable Autoconnection to open networks".
• 🛡️ Set up static. IP-address to your network (in Wi-Fi settings) → Additionally).

If mobile internet speed is low, check your settings. APN:

1. Go to Settings. → SIM-map → Access points (APN).
2. Click Reset to default values or create a new profile with your operator’s settings (you can find them on the official website).

Personalization of interface and gestures

MIUI It offers flexible visual settings, but many of the features are hidden, and let's start with the control gestures, which are faster than standard navigation buttons:

• 👆 Go to Settings. → Screen. → Full screen mode.
• 🔄 Choose "Gesturals" MIUI" and turn on the option.
• 📱 Practice: swipe from the bottom up to home, swipe from the bottom up with a pause - the latest applications, swipe from the edge - back.

To change the appearance:

1. Set a dark theme in Settings → Screen. → Topics (saves charge and reduces eye strain).
2. Download the new wallpaper to Topics → Wallpaper (there are dynamic options with paralax effect).
3. Set up the icons: in the launcher MIUI Hold your finger on the desk →"Icon style".

Hidden chips MIUI for Mi 9A:

• 🔍 Search by settings: Pull down on the main settings screen and enter a query (e.g,"NFC").
• 🎨 Color scheme: in Settings → Screen. → Colors can be selected accent color for the interface.
• 🔕 Hidden applications: in the launcher swipe left →"Hidden applications" → Add messengers or banking programs to it.

⚠️ Warning: If the notification icons are missing after the theme change, restart the phone. MIUI, which is fixed by restarting the System UI.

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Gestures MIUI Save up to 15% of screen space and speed up navigation by 30% compared to the classic buttons.

Camera and photo settings

Mi 9A It is equipped with a 12 MP main camera (Sony) IMX486) And the front 5 MP. Despite the budget, you can get high-quality images with the right settings. Start with an update to the camera app:

1. Open Google Play and find the Camera MIUI".
2. Update to the latest version (if available).
3. Clear the camera cache in Settings → Apps → Camera → Memory.

The best settings for shooting:

For the video:

• 🎥 Set the permit. 1080p 30 fps (60 fps gives strong artifacts in low light).
• 🔊 Turn off "Sound Improvement" - it adds noise to the microphone.
• 🌄 For night shooting, use the Night mode with a shutter speed of 2-3 seconds (hold the phone still).

If the camera is slowing down or gives an error, try:

1. Reset the camera settings in Settings → Annexes → Camera. → Delete the data.
2. Install alternative software, such as Google Camera (requires a root or Magisk patch).

Security and confidentiality

MIUI It's often criticized for collecting data, but most telemetry can be turned off:

• 🔒 Go to Settings. → Confidentiality.
• 🚫 Disable "Personalization of Advertising" and "Recommendations" MIUI".
• 📱 In the "Application Permissions" section, check which programs have access to a location, microphone, or camera.

To completely disable data collection:

1. Go to Settings. → The phone. → Version. MIUI (7 times click to activate the developer menu).
2. Come back to the extra. → For developers and disable "Debugging by" USB" (if you don't use).
3. In the same menu, find "Data Collection" MIUI" and “Sending Error Reports” – disable both items.

Additional security measures:

• 🛡️ Set application lock (in Settings) → Blocking applications) for instant messengers and banking programs.
• 🔐 Enable device encryption in Settings → Additionally. → Encryption (will take) ~1 hour, the phone should be charged at 80%).
• 📲 Configure your device search via Mi Cloud (allows you to remotely block or erase data when you steal).

⚠️ Note: if you use Chinese firmware, some services (such as Google Play) may not work well. MIUI.

Additional tricks and hidden functions

Mi 9A It hides some useful features that few people know about:

• 🎵 Radio. FM: Insert headphones (they act as an antenna) and open the Radio app".
• 🔋 Fast Charging: Officially not supported, you can turn on Quick Charge 3.0 via the Engineering Menu (##6484## →"Switching Charger Mode").
• 📡 Modem mode: c Settings → Access Point can be distributed on the Internet USB (need OTG-cable).
• 🔊 Mono Sound: For people with hearing impairments, include in Settings → Special opportunities → Sound. → Monoaudio.

For experimentation lovers:

1. Activate Developer Mode (as described above) and turn on"GPU-Acceleration for smoother animation.
2. In the engineering menu (#4636##) you can test sensors, check battery performance and even change the network settings.
3. Install Magisk to obtain root rights without unlocking the bootloader (but this will void the warranty).

If you want to make the most of your smartphone, consider custom software firmware like LineageOS or Pixel Experience, which will remove ads, improve performance and add features from Android One.

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Engineering menu (#4636##) allows you to test all hardware components of the Mi 9A, including camera, accelerometer and module NFC (if).

FAQ: Frequent questions about Xiaomi Mi 9A