The Xiaomi Mi 9, often referred to by fans as the "Mycoza", remains one of the company's most balanced devices thanks to its Snapdragon 855 processor and high-quality Super. AMOLED But to unlock the full potential of this machine, especially in 2026 and beyond, it's not enough to just turn it on and paste it in. SIM-Standard shell settings. MIUI They are often data-centric or contain extra elements that may annoy the experienced user.
Proper initial configuration will significantly extend battery life, improve the quality of photography and provide a smooth interface that is not inferior to the flagships of the latest years of release. In this article, we will discuss in detail each step, from unpacking to fine calibrating the display and adjusting notifications.
Many users make the mistake of skipping the screen calibration and biometrics, which can lead to inconveniences when using a smartphone in everyday life. We will help you avoid typical pitfalls and immediately create the perfect environment for work and entertainment.
Initial activation and setting up of the Mi Account
Once you turn on your device and select the interface language, the system will suggest connecting to a Wi-Fi network. This is a critical step, since Mi Account is the key to all the services of the ecosystem. When registering or logging in to your account, make sure you use a strong password, as this is where your backups of contacts, notes and even the location of the device are stored in the event of a theft.
When activated, the system may insist on enabling various recommendation services and cloud functions, and it is important to be careful: some options, such as Automatic Send Diagnostic Data, can be disabled without losing functionality, which will increase your privacy.
Special attention should be paid to setting up the Mi Cloud, if you have limited space in the free tariff, it makes sense to synchronize only contacts and system settings, and send photos to an alternative storage, this will avoid a situation where sync stops due to lack of space.
⚠️ Warning: Never sign in to your Mi Account on someone else's or suspicious computers before linking your smartphone. Two-factor authentication is required to protect against unauthorized access to your device lock.
The final step of the initial setup is to update the system. Despite the fact that the smartphone came out a few years ago, support for security updates and bug fixes for the Xiaomi Mi 9 model is still relevant in some regions. Go to Settings → About the phone and check for updates.
☑️ Primary activation of Xiaomi Mi 9
Optimization of the display and the MIUI interface
The screen Xiaomi Mi 9 is made by AMOLED technology and supports extended color gamut DCI-P3. To make the image look as natural as possible, it is recommended to go to the screen settings and switch the color scheme from "Saturated" to "Standard" or "Classic". This will save your eyes from excessive fatigue during prolonged reading of the text.
An important aspect is adjusting refresh rates and animations. Although this model does not have 90 Hz, adjusting the touchscreen response rate and transitions correctly makes the interface live. In the Advanced Settings section → Special features, you can find a slider animation speed, which should be set to 0.5x or 1x for a sense of greater sharpness.
- 🎨 Color temperature: Adjust sliders to personal preferences, shifting balance to the cold or warm side.
- 🌙 Reading Mode: Turn on automatic switching to eye protection mode in the evening to reduce the strain on the retina.
- 📏 Font size: For AMOLED It is important to choose a comfortable font size to avoid pixel burnout on static interface elements.
And remember, Always On Display (AOD), which is available on this model, allows you to display time and notifications on the screen off, but to save the battery, you better set it up only when you receive a notification or schedule, rather than keep it on all the time.
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Use dark wallpaper on the AMOLED screen Xiaomi Mi 9. the black pixels on such matrices are completely turned off, which really saves battery power and prevents the screen from burning out.
Security and biometrics setting
The fingerprint scanner in Xiaomi Mi 9 is located under the screen and works on optical technology. To achieve maximum unlock speed, you need to register each finger twice: the first time with a conventional application, and the second at a slightly different angle or with a slightly higher press, which will create a more complete digital cast.
The facial recognition system in MIUI is fast enough, but less secure than a print, because it uses a conventional front-facing camera. To maximize the protection of financial applications, it is recommended to use only a fingerprint, and leave the face unlock for quick access to the desktop. In the security settings, you can specify a mandatory password entry after rebooting the device.
| Type of protection | Speed of operation | Level of security | Working in the dark |
|---|---|---|---|
| Pin code. | Low. | High-pitched | Yes. |
| pattern lock | Medium | Medium. | Yes. |
| Print (Screen) | Tall. | High-pitched | Yes. |
| Facial recognition | Very high. | Low. | No. |
Also worth paying attention to is the "Steal Protection" feature, which includes a device search option that allows you to remotely lock your smartphone or erase data in case of loss, which requires active internet and a tied Mi Account.
Notification management and removal of advertisements
One of the most annoying features of the MIUI shell is the presence of ads in system applications. Fortunately, in the Xiaomi Mi 9, it can be almost completely turned off. First, you need to turn off the MSA service (MIUI System Ads). Go to Settings → Passwords and security → Access data, search the msa list and deny it access to the network.
Then you go through the built-in apps. In the Security app, click on the gear in the corner and turn off the Receive Recommendations. Similar actions are required in the Music, Video, Explorer and Download apps. Each of them has a Receive Recommendations or Show Recommendations switch in their settings that needs to be deactivated.
- 📢 Annex notifications: B MIUI 12 and above, you have "Notifications for Important Applications" on, so that messages from messengers don't get lost in the overall stream.
- 🚫 Blocker: Use built-in antivirus and number blocker to filter spam and fraudulent calls.
- 🔒 Hidden Profile: Set up a hidden profile for sensitive applications that are protected by a separate password or fingerprint.
Remember to check the list of apps that have permission to send notifications regularly. Often new programs automatically get the right to bother you, and they need to be manually restricted in the Notifications menu and status bar.
Camera and photographic customization
The Xiaomi Mi 9 is based on Sony’s IMX586 sensor, which is still capable of delivering excellent results. To get started, open the camera app and go to settings. Here, it is recommended to turn on the mesh to build the composition and turn off the camera sounds if they interfere.
In Pro mode, you have full control over your shooting options, which is especially useful for night sky or macro photography, and set up a save format in RAW (if there is firmware available in your region) to allow deep post-processing in editors.
⚠️ Attention: 48MP (high resolution) only captures the picture in good light and does not use night shooting algorithms. For regular photos, it is better to use the standard 12MP mode, which gives the best dynamic range.
Special attention should be paid to video settings. The smartphone can write video in 4K at 30 or 60 frames per second. To stabilize the image in motion, it is better to use 1080p at 60 fps, since electronic stabilization in 4K may work less efficiently or be unavailable in some versions of the software.
Xiaomi's Secret Camera Codes
Energy saving and battery operation
Capacity battery 3300 MAC in Xiaomi Mi 9 It's considered small by modern standards, so a good energy saving setting is critical. Activate adaptive brightness first, but limit the maximum brightness level to the maximum brightness level. 80-90% In screen settings to reduce energy consumption OLED-matrix.
MIUI has an aggressive mechanism for killing background processes, so that important applications (such as messengers or navigators) are not closed by the system, you need to go to the menu of running applications, click on the lock next to the desired application and allow it to auto-start in the battery settings, this will prevent the loss of notifications.
Use Battery mode to analyze consumption. If you notice that an app is consuming a disproportionate amount of energy in the background, manually limit its background activity, and you should also turn off keyboard vibration and interface tactile output if you want to squeeze in extra hours.
- ⚡ Fast Charging: Use only the original cable and power supply with Quick Charge 4.0 support+ Power Delivery for fast and secure charging.
- 🌡️ Temperature Control: Avoid heavy gaming while charging, as overheating is the main enemy of lithium polymer batteries.
- 🔋 Optimize: Once a week, let the phone run to 0% and charge to 100% to calibrate the power controller.
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Balanced use of MIUI features and proper battery care allow Xiaomi Mi 9 to run comfortably all day long, even years after launch.
In conclusion, the Xiaomi Mi 9’s proper setup turns it from just a good smartphone into a powerful and convenient tool.With 15-20 minutes of initial configuration, you’ll save yourself a lot of minor inconveniences in the future.