Buying a new smartphone is always an exciting moment, especially when it comes to the popular Xiaomi Redmi Note 9 Pro. However, to make the device reach its potential and work consistently for many years, it is not enough just to remove it from the box and insert it. SIM-The shell. MIUI, Android-based, requires a competent initial configuration to ensure safety and comfort.
Many users make the mistake of starting active use of the gadget immediately after turning on, ignoring important stages of initial preparation. This can leave the system with unnecessary data, security settings suboptimal, and the battery will discharge faster than expected. 20-30 It will save you hours of nerves in the future.
In this guide, we will take a look at everything from the first step to fine-tuning the camera and removing system debris, how to secure your data, speed up the Snapdragon 720G processor and make smartphone use as enjoyable as possible. Follow the instructions consistently to ensure that you do not miss any important detail.
Initial activation and resetting of excess data
Once you turn on the device and select the interface language, the system will suggest connecting the smartphone to the Wi-Fi network. The Internet is necessary to activate the Google account and check the status of the device. If you bought a new phone from the official store, this step will pass quickly. However, if the device was in use or restored, it is recommended to perform a full reset.
The reset procedure will clear the memory of previous owners or test data. This requires you to go to the Recovery menu. Turn off the phone completely, then press the volume button and the power button at the same time. Hold them until the Redmi logo appears, then release the power, continuing to keep the volume.
⚠️ WARNING: Performing a Wipe Data reset will completely remove all files, contacts and photos from the device's internal memory. Make sure there's no important information on the smartphone that you haven't copied in advance.
In the Recovery menu, you can navigate with volume buttons and you can choose with power buttons. You can select Wipe Data, then you can confirm Wipe All Data. Once you've completed the process, you can select Reboot to restart, and the system will run on the device you just bought.
☑️ Primary activation
Setting up security and accounts
The next critical step is to create or log in to a Mi Account.This is not just a formality, but a key to the Xiaomi ecosystem. Having a Mi Account allows you to use the Find Device feature, sync contacts, notes and voice recordings with the cloud, and lock the phone remotely in the event of a theft.
In parallel, Google Play Protect and Google services are being configured, and the system may suggest setting up Google Pay (now Google Wallet) for contactless payment. Make sure you agree to the terms of use, but read carefully the items on collecting usage statistics if privacy is important to you.
At the lock screen setup stage, the system will suggest setting a PIN, pattern lock or password. Don't neglect this step, relying only on face unlock or fingerprint. Biometrics are stored locally, but the digital code is the only way to unlock the phone after a reboot or if biometrics don't work.
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Use a complex 6-digit PIN instead of a simple pattern lock. The graphic pattern often leaves fat marks on the screen that attackers can count in bright light.
Optimizing the MIUI interface and removing advertising
The MIUI shell is known for its functionality, but out of the box it contains a lot of pre-installed apps and ad modules. The first thing you should do is turn off personalized ads. Go to Settings → Passwords and Security → Access to personal data and find the msa service (MIUI System Ads). Turn off the slider and wait 10 seconds until the "Cancel" button is active.
Next, you need to clean the desktop of excess software. In the Tools folder and on the desktop, you often find applications like Mi Video, Mi Music, GetApps and various browser aggregators. If you plan to use third-party solutions (for example, VLC or Chrome), standard applications can be removed or disabled.
- 📱 Notifications: Go to the settings of each remaining application and turn off (Push) notifications for those that are not messengers.
- 🎨 Topics: In the Themes app, you can change fonts and icons, but do not install themes from unverified sources, as they can slow down the interface.
- 🚀 Advanced Cleanup: You can set up automatic cache cleaning in the Security app, but it’s best to do it manually once a week for monitoring.
⚠️ Note: Do not remove system applications that you are not sure of their purpose (e.g., Google Service Components», «MIUI Home) This can lead to system instability or cyclical reboot.
Display settings and operating modes
The Redmi Note 9 Pro screen is made using IPS technology and has a refresh rate of 60 Hz. In the screen → screen colors, it is recommended to choose the “Standard” or “Saturated” mode depending on your preferences. To reduce eye load in the evening, activate the “Vision Protection” mode, which adds a warm yellow filter.
An important aspect is brightness setting. Turn on "Autolightness," but then manually adjust the slider in different lighting. The system will remember your preferences and adapt more accurately. It's also worth checking for "Dark Theme" in the Screen menu - it not only saves charge, but also reduces eye strain.
Special attention should be paid to In-Pack mode, which blocks random taps when the phone is in the bag. Make sure that this function is active in Settings → Lock screen. If you have a low-quality security glass, the proximity sensor may not work correctly, and then this option will have to be turned off.
The Secret Function of a Developer
Camera and multimedia configuration
The Redmi Note 9 Pro camera is equipped with a 64MP main module. By default, shooting is in pixel combination mode (4 in 1), which gives files about 16 MP in the best quality in low light. For maximum resolution (64 MP), you need to switch to “More” → “64 MP”, but remember that these photos take up a lot of space.
In camera settings (Settings in the corner of the camera interface), you should turn off watermarks with the date and model of the phone if you do not need them, and it is also recommended to turn on AI Improvements, which automatically adjust the shooting parameters for the scene (food, nature, documents).
For multimedia, it is important to set up a sound profile. In Settings → Sound and vibration → Sound quality and effects, you can choose an equalizer profile or turn on virtual surround sound. If you use wired headphones, activate Hi-Fi mode for a cleaner sound.
| Parameter | Recommended value | Impact on the system |
|---|---|---|
| Photo permission | 16 MP (default) | Balance of quality and place |
| Video | 1080p 60fps | Smoothness and detail |
| Photo format | HEIF (High efficiency) | Memory savings of up to 50% |
| Geolocation | Included. | Linking photo to map |
Optimizing battery and performance
The 5020mAh battery is one of the main advantages of the model. To keep it lasting, select Balanced mode in Battery and Performance section. Classic mode can restrict background processes too aggressively, and Performance mode can keep the processor warm.
The battery settings have a Charging Optimization feature, so if you turn your phone on overnight, activate this option, and the system will study your sleep patterns and charge your phone up to 80%, and the remaining 20% will be picked up just before you wake up, which will extend the life of the lithium polymer battery.
Also, check the Apps menu to see which programs have autorun permissions, disable autoruns for applications you don’t need right after the screen is turned on (e.g. online stores or news aggregators), which will significantly reduce the load on RAM and CPU in the background.
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Proper battery calibration in the first days of use (full discharge to 0% and charge to 100% without interruption) will help the system accurately display the percentage of charge in the future.