Redmi Note 9 Pro - one of the most discussed smartphones on the forum 4PDA, and for good reason. This model is from Xiaomi combines powerful hardware, long-term update support and an affordable price, making it an ideal choice for customization enthusiasts and ordinary users. 4PDA contains hundreds of topics: from official firmware to non-standard modifications, unlocking the bootloader and solving MIUI glitches. But how not to get lost in this ocean of information? In this guide, we have structured all the most important things: where to look for the latest firmware, how to safely unlock Redmi Note 9 Pro, which alternative OSs are worth trying and what to look for when buying a used device.

Feature Redmi Note 9 Pro (codename joyeuse) — its hardware platform Snapdragon 720G, which still remains relevant for most tasks. However, over time, even such hardware requires optimization: someone wants to get rid of advertising in MIUI, someone wants to install LineageOS for pure Android, but someone needs the latest firmware version with bugs fixed. We will tell you how to do this without the risk of bricking your phone, and also share life hacks that cannot be found in the official documentation.

Where to download official and custom firmware for Redmi Note 9 Pro on w3bsit3-dns.com

Forum w3bsit3-dns.com - the main hub for firmware Redmi Note 9 Pro, but not all files there are equally useful. Official firmware from Xiaomi published in the topic "MIUI for Redmi Note 9 Pro", where moderators monitor the relevance of links. However, there are nuances:

  • 🔹 Stable versions: stable, but often outdated (updates come out every 2-3 months). Suitable for daily use.
  • 🔹 Weekly/Developer: weekly builds with new features, but there may be bugs. Recommended for experienced users only.
  • 🔹 Global vs EEA vs Russia: Firmware for different regions differs in pre-installed applications and language support. The best option for Russia MIUI Russia.
  • 🔹 Fastboot vs Recovery: Fastboot-firmware is installed via PC (for example, MiFlash), Recovery — through stock or custom recovery (for example, TWRP).

Custom firmware (for example, LineageOS, Pixel Experience, ArrowOS) are searched in a separate thread “Custom firmware for Redmi Note 9 Pro”. It is important to check here:

  • ⚠️ Compatible with your model (eg Redmi Note 9 Pro And Redmi Note 9S have different firmware!).
  • ⚠️ User reviews about stability (look for comments mentioning bug-free or daily driver).
  • ⚠️ Availability of installation instructions (some firmware requires preliminary unlocking of the bootloader).
⚠️ Attention: Firmware from w3bsit3-dns.com is often modified by enthusiasts. Never install files marked test or alpha, if you are not prepared for possible data loss or phone inoperability. Also avoid links to third-party file hosting services - use only Mega.nz, Google Drive or official mirrors Xiaomi.
📊 What firmware are you using on Redmi Note 9 Pro?
  • Official MIUI Stable
  • Official MIUI Weekly
  • Custom (LineageOS, Pixel Experience, etc.)
  • I don't know/don't follow
  • Other

How to unlock the bootloader on Redmi Note 9 Pro: step-by-step instructions 2026

Unlocking the bootloader (bootloader) is a mandatory step for installing custom firmware or recovery. Xiaomi has complicated this process in the latest versions of MIUI, but you can still bypass the restrictions. Important: unlocking erases all data on the phone and may void your warranty.

Algorithm of actions:

  1. Link your account Mi Account with phone: go to Settings → Xiaomi Account → Mi Cloud and sign in.
  2. Enable USB debugging: Settings → About phone tap 7 times on MIUI version, then return to Settings → Advanced → For Developers and turn it on USB Debugging.
  3. Connect your phone to your PC, install drivers Mi USB Driver and check the connection with the command: 
    adb devices

    (The serial number of the device should be displayed).

  4. Download official Mi Unlock Tool and run it as administrator.
  5. Login to the same account Mi Account, as on your phone, and follow the instructions of the program. Usually you need to wait 72–168 hours (3-7 days) before unlocking.
⚠️ Attention: If Mi Unlock Tool gives an error Couldn’t unlock or Device not supported, try:
  • 🔌 Use a different USB cable (preferably the original one).
  • 🔌 Disable antivirus on PC.
  • 🔌 Try another version Mi Unlock Tool (For example, 3.5.501.24 instead of the latter).

On w3bsit3-dns.com there is special topic with solutions for such errors.

☑️ Preparing to unlock the bootloader

Done: 0 / 5

Comparison of Redmi Note 9 Pro with competitors: which is better in 2026

Despite his age, Redmi Note 9 Pro still competes with budget new products. His main trump cards are Snapdragon 720G (which bypasses many modern Helio G- chips in performance), 5020 mAh battery And NFC (rare on a budget). But how does it compare to the alternatives?

Characteristics Redmi Note 9 Pro Samsung Galaxy M32 Realme 8 Pro POCO X3 NFC
Processor Snapdragon 720G Helio G80 Snapdragon 720G Snapdragon 732G
Screen 6.67" IPS, 60 Hz 6.4" AMOLED, 90 Hz 6.4" AMOLED, 60 Hz 6.67" IPS, 120 Hz
Battery 5020 mAh, 30 W 6000 mAh, 25 W 4500 mAh, 50 W 6000 mAh, 33 W
NFC ✅ Yes ❌ No ✅ Yes ✅ Yes
Price (used, 2026) ~12 000 ₽ ~15 000 ₽ ~14 000 ₽ ~16 000 ₽

Critical moment: Redmi Note 9 Pro It loses to modern smartphones in screen refresh rate (no 90/120 Hz), but wins in community support and the number of custom firmware. If you care AMOLED or high refresh rate, pay attention to Realme 8 Pro or POCO X3 NFC. But if needed maximum autonomy And NFC — Redmi Note 9 Pro remains the best choice in its segment.

Why is POCO X3 NFC better for gaming?

POCO X3 NFC is equipped Snapdragon 732G (15% more productive than 720G) and a screen with 120 Hz, which is critical for dynamic games like PUBG or Genshin Impact. However, its battery drains faster due to its high refresh rate, and its cameras are weaker than Redmi Note 9 Pro.

Top 5 custom firmware for Redmi Note 9 Pro: pros and cons

Not everyone likes the official MIUI due to advertising, unnecessary applications and restrictions. Custom firmware solves these problems, but which one should you choose? We tested the most popular options with w3bsit3-dns.com and highlighted their key features.

  • 📱 Pixel Experience (Android 13):
    • ✅ Pure Android without ads, Google Camera support.
    • ❌ Some MIUI features are missing (e.g. Game Turbo).
  • 📱 LineageOS 20 (Android 13):
    • ✅ Maximum stability and security.
    • ❌ No GMS (needs to be installed separately).
  • 📱 ArrowOS (Android 13):
    • ✅ Flexible interface settings, good performance.
    • ❌ Sometimes there are bugs with the camera.
  • 📱 MIUI EU (unofficial):
    • ✅ MIUI without ads and Chinese applications.
    • ❌ Requires weekly updates.
  • 📱 Havoc-OS (Android 12):
    • ✅ Lots of features for fine tuning.
    • ❌ Outdated version of Android.

To install any custom firmware you will need:

  1. Unlocked bootloader (see section above).
  2. Installed recovery TWRP (you can download here).
  3. Backup current firmware (make it in TWRP through Backup).
💡

Before installing custom firmware, format the partition Data in TWRP (not just Wipe, and Format Data → yes). This will prevent errors with encryption.

Typical problems of Redmi Note 9 Pro and their solutions

Even such a reliable smartphone as Redmi Note 9 Pro, is not immune to bugs. On w3bsit3-dns.com users often complain about:

  • 🔋 Rapid battery drain:

    Reason: MIUI background activity or worn out battery. Solution:

    • Disable Auto-sync in Settings → Accounts.
    • Install AccuBattery to monitor battery health.
    • If the capacity drops below 70%, replace the battery (the original one costs ~1,500 ₽).
  • 📶 Poor network signal:

    Reason: problems with the modem or antenna. Solution:

    • Reflash the modem via Fastboot (instructions here).
    • Check to see if the antenna is damaged (a common problem after falls).
  • 🔊 Sound distortion in headphones:

    Reason: dirty 3.5 mm jack or software bug. Solution:

    • Clean the connector with alcohol and a toothpick.
    • Disable Mi Sound Enhancer in Settings → Sound.
⚠️ Attention: If, after updating MIUI, the phone begins to overheat or slow down, perform a reset via Settings → Advanced → Backup and reset. This often helps with system file conflicts. If the problem persists, roll back to the previous firmware version.

How to check Redmi Note 9 Pro when buying used: checklist

Buying used Redmi Note 9 Pro can save up to 50% of the original price, but it is important to avoid a pig in a poke. Here's what to check:

☑️ Checking used Redmi Note 9 Pro

Done: 0 / 8

Pay special attention to:

  • 🔋 Battery: If the phone turns off at 20-30%, the battery is worn out.
  • 📸 Cameras: Check all modules (wide angle, macro, depth). Often sellers don't mention that one of them isn't working.
  • 🔑 To the loader: if OEM Unlock turned off and does not turn on, the phone could be under repair or stolen.

To check originality phone, enter the command in the engineering menu: 

*#*#4636#*#*

In the section Phone information model should be displayed M2003J6A1G (for global version) or M2003J6B2G (for Indian). If the model is different, this is a fake or a re-flashed device.

FAQ: Frequently asked questions about 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. Officially Xiaomi stopped supporting updates for this model at MIUI 12.5 (Android 11). To install Android 13 you will need an unlocked bootloader and TWRP.

How to enable 90Hz on Redmi Note 9 Pro?

Unfortunately, Redmi Note 9 Pro does not support higher screen refresh rates 60 Hz - This is a hardware limitation. If you need a 90/120Hz smartphone, consider POCO X3 NFC or Realme 8 Pro.

Why does Redmi Note 9 Pro not see the SIM card?

The reasons may be different:

  • 📱 SIM card tray is damaged (check contacts).
  • 📱 Software failure (try rebooting your phone or resetting your network settings in Settings → SIM cards and mobile networks).
  • 📱 Problems with the modem (solved by flashing via Fastboot).

If all else fails, contact a service center - the antenna may be faulty.

How to disable ads in MIUI on Redmi Note 9 Pro?

Methods:

  • 🔧 In settings: Settings → Storage → Clear (will delete the cache of advertising services).
  • 🔧 Via ADB: run the command adb shell pm uninstall --user 0 com.miui.systemAdSolution.
  • 🔧 Install custom firmware without ads (for example, MIUI EU or Pixel Experience).

How much does it cost to replace the screen on Redmi Note 9 Pro?

The cost depends on the type of screen:

  • 💰 Original screen: ~5,000–7,000 ₽.
  • 💰 High-quality non-original (for example, BOE): ~3 000–4 500 ₽.
  • 💰 Cheap Chinese equivalent: ~1,500–2,500 ₽ (risk of poor color rendering or touchscreen).

We recommend contacting trusted service centers - on w3bsit3-dns.com list of recommended workshops.