Xiaomi Redmi Note 9 Pro remains one of the most talked about smartphones on forum w3bsit3-dns.com even years after release. This model has gained popularity due to its balanced characteristics, affordable price and active support from enthusiasts. On w3bsit3-dns.com, users share firmware, instructions for unlocking the bootloader, optimizing performance, and even unofficial modifications that go far beyond the standard MIUI functionality.

In this article we have collected all relevant information o Redmi Note 9 Pro from the 4PDA forum: from official and custom firmware to hidden features and typical problems. You will learn how to properly update your device, which versions of MIUI are more stable, how to unlock the bootloader without the risk of bricking, and where to find verified files for firmware. We will pay special attention unique features that are not written about in official instructions - for example, how to enable hidden performance mode or bypass MIUI restrictions.

If you are the owner Redmi Note 9 Pro (codename joyeuse) or are just planning to buy it, this guide will help you avoid common mistakes and maximize the potential of the device. All data has been verified by w3bsit3-dns.com experts and confirmed by user reviews.

Technical specifications of Xiaomi Redmi Note 9 Pro: what's under the hood

Smartphone Xiaomi Redmi Note 9 Pro built on a processor Qualcomm Snapdragon 720G - one of the most balanced chipsets in the mid-segment of 2020. This 8-core processor (2x2.3 GHz Kryo 465 Gold + 6x1.8 GHz Kryo 465 Silver) is paired with a graphics accelerator Adreno 618 Provides smooth performance in most modern games at medium settings. For example, in PUBG Mobile the device pulls 60 FPS upon permission HD, and in Genshin Impact - up to 30 FPS on low settings.

Key features of the hardware platform:

  • 📱 Display: 6.67" IPS LCD, 2400×1080 (Full HD+), 60 Hz, brightness up to 450 nits. Supports HDR10 and has a certificate TÜV Low Blue Light.
  • 🔋 Battery: 5020 mAh with fast charging support 30W (power supply included) 33W). A full charge takes ~65 minutes.
  • 📷 Cameras: main 64 MP (Samsung GW1) + 8 MP (ultra-wide) + 5 MP (macro) + 2 MP (depth sensor). Front camera - 16 MP.
  • 💾 Memory: options 6/64 GB, 6/128 GB and 8/128 GB. Supports microSD up to 512 GB (hybrid slot).

One of the main features of the model is side fingerprint scanner, built into the power button. It works faster than many competitors and rarely crashes. Also worth noting are stereo speakers with support Dolby Atmos — the sound in games and movies is voluminous, although not as deep as that of flagships.

📊 What firmware are you using on Redmi Note 9 Pro?
  • Official MIUI (stable)
  • Official MIUI (weekly)
  • Custom (AOSP, LineageOS, etc.)
  • Don't know/didn't update

Official MIUI firmware for Redmi Note 9 Pro: which versions are more stable

New versions are regularly discussed on the w3bsit3-dns.com forum MIUI for Redmi Note 9 Pro. Latest official firmware as of 2026 - MIUI 14 (base - Android 12). However, many users prefer to stay on MIUI 12.5 Enhanced or even MIUI 11 due to more stable operation and the absence of unnecessary “features” that slow down the system.

Here is a comparison table of current MIUI versions for joyeuse (codename Redmi Note 9 Pro):

MIUI versionAndroidBenefitsDisadvantages
MIUI 1412New design, improved optimizationBugs with notifications, high battery consumption
MIUI 12.5 Enhanced11Maximum stability, few bugsOutdated interface, no new features
MIUI 1110Minimalistic design, fast workNo support for new applications

🔹 Advice from 4PDA: If stability is important to you, it is better to go with MIUI 12.5.8.0 (Android 11). This version is considered the most debugged and is devoid of most of the bugs of later releases. You can download it at firmware topic (the link is conditional - replace it with the current one).

⚠️ Attention: When updating from Android 10 on Android 11/12 might work anti-rollback (anti-rollback). This means that it will be impossible to return the old version of the firmware without the risk of being “bricked”. Before updating, check the current version in Settings → About phone → MIUI version.

How to flash Xiaomi Redmi Note 9 Pro via Fastboot and Recovery

Firmware Redmi Note 9 Pro may be required to update the system, fix bugs or install custom firmware. There are two main methods on w3bsit3-dns.com: via Fastboot (full firmware) and Recovery (update without data loss). Let's consider both options.

Method 1: Firmware via Fastboot (complete cleaning)

  1. Download official firmware for joyeuse in format .tgz.
  2. Unzip the archive and place the files in the folder with fastboot (from Platform Tools).
  3. Turn off your phone, hold down Volume Down + Power to login Fastboot.
  4. Connect your device to your PC and run the command: 
    fastboot flash all

    (if the firmware file is called flash_all.bat, just run it).

Method 2: Update via Recovery (saving data)

  • 📁 Download the firmware in the format .zip and rename it to update.zip.
  • 📲Move the file to the root of your phone's internal memory.
  • 🔄 Go to Recovery (press Volume Up + Power when the phone is turned off).
  • 🖱️ Select Install update.zip and confirm the installation.

Make a backup of data (photos, contacts, messages)

Check battery charge (minimum 50%)

Install Xiaomi drivers on PC

Download the correct firmware version for your model (joyeuse)

Disable antivirus (may block firmware files) -->

⚠️ Attention: If after flashing via Fastboot The phone does not turn on (stuck on the logo MI), try running the command: 
fastboot erase userdata

This will reset the settings, but often solves the boot problem. If it doesn’t help, try again with a complete cleaning (fastboot flash all -w).

Unlocking the bootloader on Redmi Note 9 Pro: step-by-step instructions

To install custom firmware (for example, LineageOS or Pixel Experience) necessary unlock bootloader. Xiaomi officially allows you to do this, but the process requires waiting and accuracy. There is a proven method on w3bsit3-dns.com that will work in 2026.

Step 1: Linking Mi account

  • 📱 Go to Settings → Mi Account → Linked devices and link your account to your phone.
  • 🔗 Make sure two-factor authentication is enabled on your account.
  • ⏳ Wait 7 days (mandatory requirement of Xiaomi).

Step 2: Unlock via Mi Unlock Tool

  1. Download official utility Mi Unlock Tool.
  2. Launch the program, log into your account Mi and connect the phone in mode Fastboot.
  3. Click Unlock and wait for the process to complete (usually takes 1-2 minutes).

🔹 Important: After unlocking the bootloader, all data on the phone will be erased! Also note that some banking applications (eg. Sberbank Online) may stop working due to a trigger SafetyNet.

What to do if Mi Unlock Tool gives the error "Couldn't unlock"?

This error often occurs due to:

- Unlinked Mi account (check in Settings → Mi Account)

- Insufficient waiting time (7 days are required!)

- Problems with drivers (reinstall Mi USB Driver)

- Blocks by region (try using VPN for China)

If all else fails, create a topic on 4PDA with error logs.

Custom firmware for Redmi Note 9 Pro: which ones are worth trying

Actively discussed on w3bsit3-dns.com unofficial firmware for Redmi Note 9 Prothat offer clean Android, better performance and no MIUI ads. Here are the top 3 proven options:

  1. Pixel Experience (Android 13) - firmware with interface Google Pixel, regular updates and excellent optimization. Supports GCam "out of the box". Link to topic.
  2. LineageOS 20 (Android 13) - stable firmware with minimalistic design and open source code. Ideal for those who value privacy.
  3. Evolution X - firmware with advanced customization settings, support Face Unlock and an optimized kernel.

🔹 Advantages of custom firmware:

  • ⚡ No advertising or unnecessary Xiaomi services.
  • 🔄 Regular security updates (unlike abandoned versions of MIUI).
  • 🎯 Possibility of fine-tuning performance (for example, changing the CPU governor).
⚠️ Attention: Installing custom firmware voids the warranty and can lead to problems with Widevine L1 (downgraded to L3, due to which Netflix and other services will only show videos in 480p). To return L1, sometimes flashing the original firmware helps vendor through Fastboot.
💡

Before installing custom firmware, check support VoLTE And VoWiFi for your operator. Some assemblies may not work correctly with Russian SIM cards (for example, problems with MTS or Tele2).

Hidden features and tweaks for Redmi Note 9 Pro

MIUI hides many useful functions that are not written about in the official instructions. On w3bsit3-dns.com users are divided codes and settingsthat help you unlock your full potential Redmi Note 9 Pro.

Top 5 hidden features:

  • 🔋 High Performance Mode: Enter in dialer *#*#4636#*#*, select Battery information and turn it on High performance. This will disable CPU throttling, but will increase battery drain.
  • 📡 Forced activation of 4G+: Go to Settings → SIM cards and mobile networks → Network type and select LTE only. Then enter *#*#4636#*#* → Phone information → Set network type → LTE only.
  • 🔊 Improving the sound in headphones: Activate Dolby Atmos in Settings → Sound and vibration → Sound quality and select a profile Music.
  • 📸 GCam without root: Download the modified version Google Camera (For example, BSG or Urnyx05) from the topic on 4PDA. She supports Night Sight And Astrophotography even on stock firmware.
  • 🔒 Disabling ads in MIUI: Go to Settings → Storage → Cleaning and turn off Recommendations. Also install ADB and run the command: 
    adb shell settings put global private_dns_mode 2

    (this will include DNS-over-TLS, which blocks some advertising).

🔹 For advanced users: If you have root, you can disable unnecessary system applications (for example, com.miui.analytics or com.xiaomi.midrop) using Titanium Backup or ADB AppControl. This will free up 500 MB memory and reduce background activity.

💡

Hidden MIUI settings often change in new firmware versions. If the code or menu path does not work, check the topic for your version of MIUI on 4PDA for the latest information.

Typical problems of Redmi Note 9 Pro and their solutions

Despite the reliability Redmi Note 9 Pro has several common problems that are discussed on w3bsit3-dns.com. Here are the most common ones and how to fix them:

ProblemReasonSolution
Overheating when chargingFaulty power supply or high currentUse the original memory 33W or turn on Charge limit in the battery settings.
Spontaneous rebootsApplication conflict or damaged firmwareReset settings to factory defaults or reflash via Fastboot.
NFC doesn't workModule firmware missing or hardware faultUpdate the firmware via Mi Flash Tool or check the NFC antenna (often comes off after falls).
Poor connection (4G interruptions)Non-optimal modem settingsInstall modem files from Redmi Note 9S (model curtana) - they work better with Russian operators.

🔹 If the phone does not turn on:

  1. Connect to charger for 30 minutes (even if the indicator is off).
  2. Try going to Fastboot (Volume Down + Power) and flash through Mi Flash Tool.
  3. If the screen is black, but the phone vibrates, it may have crashed EDL-mode In this case, only firmware via Test Point (instructions are on 4PDA).
⚠️ Attention: If it stops working after a fall display module (no image, but the phone works), do not rush to change the screen. Often the problem is a cable that has moved away from the motherboard. On w3bsit3-dns.com there is disassembly instructions with photographs.

FAQ: Frequently asked questions about Xiaomi Redmi Note 9 Pro

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

Yes, but only through custom firmware like Pixel Experience or LineageOS 20. Xiaomi will not officially release Android 13 for this model as support has ended at Android 12 (MIUI 14).

🔹 How to enable 90Hz on Redmi Note 9 Pro?

The screen in this model only supports 60 Hz. Any manipulations with settings (for example, through ADB or engineering menu) will not give results - the update frequency is limited by hardware. If you need 90 Hz, consider Redmi Note 10 Pro or newer.

🔹 Why does the battery drain quickly after updating MIUI?

This is a typical problem with new versions of MIUI. Try:

  • Disable Auto brightness and set the value manually (~40%).
  • B Settings → Battery → Battery Mode choose Battery Saving.
  • Remove or freeze unnecessary system applications (for example, Mi Video, Mi Browser).

If it doesn't help, roll back to MIUI 12.5 — it is optimal in terms of consumption.

🔹Where can I download the original firmware for Redmi Note 9 Pro?

Official firmware can be downloaded:

  • C Xiaomi website (choose model joyeuse).
  • From topics on w3bsit3-dns.com (modified versions without a blocker are often posted there).
  • Via XiaomiTool V2 (the utility will automatically select the current version).

🔹 Important: Always check the hash (MD5) downloaded file - fake firmware with viruses is often found on third-party sites.

🔹 How to unlock bootloader if Mi Unlock Tool doesn't work?

If the utility gives an error Couldn't unlock or Current account is different from the account info on the device, try:

  1. Make sure that on your phone and in Mi Unlock Tool one account is used.
  2. Disable VPN and check your Internet connection (sometimes the firewall blocks it).
  3. Use proxy server for China (eg 127.0.0.1:8888 from Fiddler).
  4. Try another PC (sometimes the problem is in the drivers).

If all else fails, create a request in support topic on w3bsit3-dns.com with error logs.