How to use <em>Redmi Note 9 Pro</em> correctly: from basic setup to hidden features

Redmi Note 9 Pro - one of the most popular smartphones from Xiaomi, combining powerful hardware, long battery life and an affordable price. However, even experienced users do not always know how to unlock the full potential of this device. In this article we will look at not only the basic setup after purchase, but also hidden functions, performance optimization, solving common problems, and even flashing firmware via Fastboot.

The material will be useful both to beginners who have just unpacked the box, and to advanced users who want to get the most out of Snapdragon 720G processor, 64 MP cameras or 5020 mAh batteries. We will do without general advice - only specific instructions with explanations of why this or that step is important.

Initial setup: what to do immediately after purchase

When you first turn on Redmi Note 9 Pro, the system prompts you to go through the standard setup procedure. Many people skip it automatically, but here lie important nuances that affect the further operation of the smartphone.

First select your language and region. For Russia it is optimal to indicate Russia — this guarantees the correct operation of services Google, weather localization and other functions. If you plan to use your smartphone abroad, it is better to choose your host country - this will eliminate problems with roaming and geolocation.

• 🔄 Data Recovery: if you had a previous smartphone with Android, you can transfer contacts, photos and applications via Mi Mover (firmware) or Google Account. However, please note that transferring applications via Mi Mover sometimes leads to errors in their operation - it is better to install them again from the Play Market.
• 🔒 Screen lock: configure PIN, pattern key or fingerprint right away. Without this you won't be able to use it Mi Pay, banking applications and some security features.
• 📡 Connecting to Wi-Fi: Select a network that supports 5 GHz, if your router supports it, this will speed up downloading of updates and applications.

After basic setup, be sure to check the firmware version in Settings → About phone → MIUI version. If she's older MIUI 14, update via Settings → System update. Older versions may contain vulnerabilities and may be less stable.

Performance optimization: how to speed up your smartphone

Redmi Note 9 Pro equipped with a processor Snapdragon 720G, which will cope with most tasks, but over time even it can begin to “slow down”. The reasons usually lie not in the hardware, but in the software settings.

The first thing to do is turn off interface animation. To do this:

1. Activate Developer Modeby pressing 7 times on MIUI version in the phone settings.
2. Return to Settings → Advanced → For Developers.
3. Find items Window animation scale, Transition animation scale And Animator duration scale - set the value Off or 0.5x.

Second, limit background app activity. Go to Settings → Applications → Permissions → Autorun and disable autorun for unnecessary programs (especially instant messengers and social networks). This will reduce the load on RAM and will increase battery life.

⚠️ Attention: Do not use “boosters” and “optimizers” from the Play Market (for example, Clean Master or DU Speed Booster). Not only do they not help, but they can also degrade performance by constantly running in the background.

Camera: how to take better photos than flagships

Main module Redmi Note 9 Pro on 64 MP capable of producing excellent images, but only with the right settings. By default the camera uses pixel binning (combining 4 pixels into 1), which gives pictures in 16 MP with better detail in low light conditions. However, in manual mode you can push the maximum.

Open the application Camera, go to Professional mode (or Pro) and pay attention to the following parameters:

• 📸 ISO: during the daytime set 100–400, at dusk - 800–1600, at night - until 3200 (higher - too much noise).
• ⏱️ Excerpt: for moving objects - 1/1000s, for static ones - 1/30s or slower (but don’t forget about stabilization!).
• 🎯 Focus: Manually adjust the focus if autofocus misses (especially important for macro photography).

To shoot video in 4K@30fps turn on Stabilization in the camera settings. However, remember: when registering in 4K electronic stabilization cuts off the edges of the frame - if a wide angle is important to you, shoot in 1080p@60fps.

Shooting mode	Recommended Settings	When to use
Portrait	Background Blur: F2.4, lighting: Natural	For photos of people with blurred backgrounds
Nchoi	ISO: 3200, excerpt: 1/10s, tripod required	For shooting starry skies or city lights
Macro	Focal length: 2–5 cm, ISO: 400	For small items (insects, flowers)
Video 4K	Stabilization: On, bitrate: High	For professional shooting with subsequent editing

Battery: how to extend the life of a 5020 mAh battery

Battery capacity in Redmi Note 9 Pro Impressive, but without proper tuning it can settle faster than expected. The main charge eaters are background processes. Miui Optimization and unoptimized applications.

The first step is to disable constant synchronization for unnecessary accounts. Go to Settings → Accounts and turn off automatic sync for Google Photos, Drive and other services if you do not use them daily. Also check Settings → Battery → Battery Mode and select Balanced (not Performance).

Second point - fast charging. Redmi Note 9 Pro supports 33W Fast Charging, but constant use of turbo mode reduces battery life. If you are not in a hurry, charge your smartphone with a standard 10W-charger (or disable fast charging in Settings → Battery).

⚠️ Attention: If the smartphone suddenly turns off at 20-30% charge, this is a sign of battery wear. Check its status via *#*#4636#*#* (menu Battery information) or application AccuBattery.

Unlocking the bootloader and installing custom firmware

If you are not satisfied with the standard MIUI, you can install alternative firmware (for example, Pixel Experience or LineageOS). However, this will require unlocking the bootloader, a process that is officially supported Xiaomi, but has its own nuances.

First get permission to unlock:

1. Link your account Mi with the phone in Settings → Mi Account.
2. Go to the site en.miui.com/unlock and submit your application (may take up to 72 hours).
3. Download Mi Unlock Tool and connect the phone in mode Fastboot (press Volume Down + Power when the smartphone is turned off).

After unlocking the bootloader, you can flash custom software via TWRP or Fastboot. However, remember:

• 🔧 Warranty on the smartphone after unlocking it burns out (but is restored when returning to the stock firmware).
• 📱 Backup data is required - everything will be deleted when updating the firmware.
• ⚡ Battery charge must be at least 60%, otherwise the risk of “scaling” increases.

What to do if the smartphone does not turn on after flashing the firmware?

If after installing custom firmware Redmi Note 9 Pro does not start (stuck on the logo or went into bootlap), try:

1. Go to Recovery (Volume up + Power) and do Wipe Data.

2. Flash the stock firmware via Mi Flash Tool in mode Fastboot.

3. If all else fails, contact the service center (but warn that the bootloader is unlocked).

Solving common problems: glitches, overheating, errors

Even the most reliable smartphone can behave strangely. Let's look at the most common problems Redmi Note 9 Pro and ways to eliminate them.

Problem 1: Overheating while gaming or charging.

Reasons: background processes, faulty battery or thermal paste (if the phone has been dropped). Solution:

• 🎮 Close all applications before playing (via Recent → Close all).
• 🔋 Remove the cover - it may block the heat sink.
• 🛠️ If the temperature exceeds 50°C, contact service (the thermal paste may need to be replaced).

Problem 2: Fingerprint does not work.

Most often this is due to an update MIUI or damage to the sensor. Try:

1. Delete all prints in Settings → Screen lock → Fingerprint and add again.
2. Update the firmware to the latest version.
3. If the sensor is physically damaged (cracks, dents), replacement will be required.

Problem 3: The battery drains quickly in standby mode.

“Gluttonous” applications or system services are to blame. Check:

• 📊 Settings → Battery → Battery Usage — which applications consume the most.
• 🔄 Disable Constant network search in settings Wi-Fi And mobile data.
• 🛡️ Install Greenify (required root) to forcefully freeze background processes.

Hidden features you didn't know about

MIUI filled with Easter eggs and useful features that do not lie on the surface. Here are some of them:

• 🎵 Double tap to wake up: activated in Settings → Lock screen → Double tap to wake. Convenient when the fingerprint sensor does not work.
• 🔊 Mono sound for headphones: in Settings → Accessibility → Sound → Mono Audio You can combine stereo sound into one channel (useful for hearing problems).
• 📱 Second Space mode: in Settings → Accessibility → Second space you can create a separate profile with other applications and settings (for example, for work).
• 🔍 Screen search: Swipe down on the Home screen to open Search Apps & Settings (similar to Spotlight on iPhone).

Another little-known feature - Game Turbo mode. It not only optimizes gaming performance, but also allows you to:

• Block notifications while playing.
• Display FPS counter.
• Adjust sensor sensitivity for shooters.

Turns on via Settings → Accessibility → Game Turbo.

And finally, hidden testing menu. Enter in dialer *#*#4636#*#*to access battery, network, and usage statistics. Here you can forcefully switch the network type (for example, from LTE on 3G, if the connection is unstable).

FAQ: answers to frequently asked questions

Is it possible to install Android 13 on Redmi Note 9 Pro?

Officially MIUI based on Android 13 will not work for this model - latest version MIUI 14 works for Android 12. However, you can install custom firmware (for example, Pixel Experience 13) after unlocking the bootloader. Please note that some functions may not work (for example, Mi Pay or double applications).

How to disable ads in MIUI?

Advertising in MIUI disabled in several places:

1. Settings → Mi Account → Advertising → Personalized Ads (Off)
2. Settings → Applications → Application management → Calendar/Music/Video → Disable ads
3. In the application Topics turn off Recommendations in the settings.

To completely remove advertising you will need root or custom firmware without services Xiaomi.

Why doesn't NFC work on Redmi Note 9 Pro?

Redmi Note 9 Pro (model for global market, joyeuse) has no module NFC - it is only available in the version for India (curtana). Check your device model in Settings → About phone → Model. If it is indicated there M2003J6A2G (Indian version) then NFC should work - check the settings in Settings → Connections → NFC.

How to transfer applications to a memory card?

B Android 10+ transferring applications to microSD limited. However, you can:

1. Format card as Internal storage (all data on it will be encrypted and inaccessible on other devices).
2. Use apps like App2SD (requires root).
3. Transfer only media files (photos, videos) via Settings → Storage → File transfer.

Please note that games and system applications cannot be transferred.

The smartphone does not see the computer via USB. What to do?

The problem is usually related to drivers or settings USB. Try:

1. Change connection mode: When connected to a PC, pull down the notification shade and select Transferring files.
2. Install drivers Mi PC Suite from the official website Xiaomi.
3. Try a different cable or port USB (preferably USB 3.0).
4. Enable USB Debugging in Settings → For Developers.

If all else fails, check your smartphone on another computer - the problem may be Windows.