How to set up Xiaomi Redmi Note 9 Pro: a complete guide with secret chips

Xiaomi Redmi Note 9 Pro is still one of the most popular smartphones in its price segment, despite the release of new models. 720G, capacious battery for 5020 mAh, quadruple-camera and AMOLED-The screen makes the device relevant even in 2026, but out of the box the phone is not working at full capacity: factory settings are often overloaded with unnecessary services, and the interface is often overloaded with unnecessary services. MIUI Hide dozens of useful functions.

This article isn't about basic "turn and forget" but about deep customization for your tasks: how to speed up work, extend battery life, protect data and unlock the hidden potential of the camera. MIUI 14 (and below) that are missing from Xiaomi’s documentation, from fine-tuning gestures to optimizing background processes. If you just bought a Redmi Note 9 Pro or want to “reanimate” an old device, here are the answers to questions that are not in the standard instructions.

First Including: What to Do Immediately After Unpacking

Many people skip this stage, but the right initial setup saves hours in the future. When you first turn on the Redmi Note 9 Pro, the system suggests choosing a language, connecting to Wi-Fi, and logging into your Mi Account.

• 🔄 Update your firmware to the latest version through Settings → The phone. → Update the system. Even if the phone was new, it could have been in storage with outdated firmware.
• 🔒 Create a backup copy IMEI (This will save you if your phone suddenly locks after resetting.
• 📱 Turn off "Recommendations" MIUI" In Settings → Annexes → Application management → Recommendations to avoid spam notifications.
• 🔋 Charge to 100% before first setting up – this calibrates the battery controller.

The next step is to clear out the Blaatware (pre-installed apps) and the Redmi Note 9 Pro has a lot of them, Mi Browser, Mi Video, GetApps, and more, and you can't remove them completely without root rights, but you can turn them off:

1. Go to Settings → Applications → Application Management.
2. Select an unused app (such as Mi Music).
3. Click Disable (do not "Remove Updates"!).
4. Confirm the action. The app will disappear from the menu and stop wasting resources.

⚠️ Warning: Do not disable system services called com.android... or miui... this can cause malfunctions in the phone.

Optimizing performance: how to speed up the Redmi Note 9 Pro

Snapdragon 720G — It's a powerful processor, but over time, even it starts to slow down because of background processes and debris in the system:

• ⚡ Disable animation: reduces delays when opening applications. Activated through Settings → Special facilities → Delete animation (turn on the switch).
• 🧹 Cache Cleanup: Do It Once a Week Through Settings → Memory. → Not to be confused with garbage cleanup, it removes useful temporary files!
• 🔄 Transition to "Production mode": in Settings → Battery → Performance mode select High Performance (reduces battery life but speeds up games).

For advanced users there is a hidden setting – forcing GPU rendering. It makes the processor use the graphics accelerator for even simple tasks:

1. Turn on Developer Mode: Settings → About Phone → MIUI version (click 7 times).
2. Back to Settings → Additionally. → For developers.
3. Find the options: Force GPU rendering - turn on; Force 4x MSAA — Enable (improves graphics in games); Limit background processes – set a maximum of 2 processes.

⚠️ Note: If you activate the Force 4x MSAA, Watch the CPU temperature in games like Genshin Impact or Call of Duty Mobile (>30 minutes) this parameter can cause trottling (automatic performance decline due to overheating).

Turn off background synchronization|Set a limit FPS Game Turbo|Activate the “High Performance” mode"|Clear the graphics driver cache-->

Battery settings: how to extend autonomy

The 5020mAh battery in the Redmi Note 9 Pro should hold a charge of 1.5-2 days with moderate use. If your phone runs out in 10-12 hours, the problem is not the "weak battery" but the wrong settings. Start with a flow analysis:

1. Go to Settings → Battery → Battery Use.
2. See which apps are using up the most power: the typical “eaters” are: Facebook and Instagram (background activity); Google Play Services (synchronization); MiuiDaemon (system process responsible for notifications).

Consumption management

Limit background activity

The next step is to set up energy saving modes. MIUI three:

For maximum autonomy:

• 🌙 Activate the dark theme (Settings) → Screen. → Dark subject. AMOLED-This saves up to 15% of the charge on the screen.
• 📶 Turn off automatic Wi-Fi network search (Settings) → Wi-Fi → Additionally. → Networking).
• 📍 Set up geolocation: in Settings → Confidentiality → Permits → Select Geolocation Only during use for all applications except maps.

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If your phone runs 10-15% off at night without using it, check apps with permissions Ignore battery optimization in Settings → Battery → Battery optimization: Messengers (Telegram, WhatsApp) or fitness trackers are most often to blame.

Secret functions MIUI, which you didn't know

MIUI It hides dozens of useful chips that aren't mentioned in the official instructions:

• 🔍 Search by settings: at the top of the Settings screen is a search bar. Type in a keyword (e.g., "gestures") and the system will show all related settings.
• 📲 Double tap to wake up: activated in Settings → Lock screen → Double-touch wake-up, even with the screen off.
• 🔊 Smart Sound Management: In Settings → Sound. → Smart sound management can be configured to automatically switch between the speaker and headphones when connecting / disabling the headset.
• 📎 Quick notes on the lock screen: swipe down the locked screen to quickly create a note or reminder.

One of the most useful hidden features is Read Mode, which not only makes the screen monochrome, but also adjusts the color temperature to the lighting, reducing the strain on the eyes.

1. Go to Settings. → Screen. → Reading mode.
2. Select Enable on schedule and set a time (for example, from 21:00 to 8:00).
3. Activate the Blue Light Filter option for additional vision protection.

For customization enthusiasts, there is a hidden theme editor.Clatch the empty space on the home screen → Topics → You can edit it:

• Change the application icons;
• Customize the accent color in the system;
• Hide the name of applications on the desktop;
• Change the font (there are even Cyrillic versions of Mi Sans type).

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App Vault (called swipe left on the home screen) allows you to quickly access a frequently used tool: the scanner. QR, Translator, screen recordings and even Mi Mover mini-game for file transfer.

Security: How to protect data and prevent blocking

The Redmi Note 9 Pro is a popular model among thieves because of the high liquidity in the secondary market, and if the phone is stolen, the chances of returning it are minimal, but you can block access to data remotely.

1. Attach the device to your Mi Account (Settings) → Xiaomi account).
2. Activate Find the device in Settings → Google → Security → Find the device.
3. Enable Lock When Reset in Settings → Xiaomi account → This will lock your phone even after a hard reset.

⚠️ Note: If you have purchased a Redmi Note 9 Pro hands, immediately reset to factory settings, even if the seller assures that "all clear." 2023 In the past, previous owners have remotely locked their phones through Mi Account, demanding ransom. mi.com/verify.

To protect against viruses and spyware:

• 🛡️ Install Google Play Protect (built into Play Market) and run the check.
• 🔐 Disable the installation of applications from unknown sources (Settings) → Confidentiality → Special permits → Installation of unknown applications).
• 📡 Check your Bluetooth connected devices in Settings → Connections → Bluetooth, remove all unknown gadgets.

If you frequently connect your phone to public Wi-Fi (at cafes, airports), activate your phone. VPN. V MIUI There's a built-in client:

1. Go to Settings → Connections → VPN.
2. Select Add Add. VPN and set up a connection (for example, via ProtonVPN or Windscribe).
3. Enable the option to always connect to VPN self-protective.

Camera: Hidden settings for the best photos

Quad camera Redmi Note 9 Pro (48 MP) + 8 MP + 5 MP + 2 MP) is capable of more than it seems. The main problem is that the factory settings are optimized for the "average user" rather than for specific shooting scenarios:

• 📸 Turn it on. HDR Auto in camera settings. It automatically balances exposure in challenging conditions (e.g. against light).
• 🌃 Set up night mode: in manual mode (Pro) set shutter speed for 1-2 seconds and ISO 800-1600 for shooting in the dark.
• 🔍 Use macro: switch to a 5MP module (flower icon) and bring the phone 2-4 cm to the subject.
• 🎥 Take a video in 4K@30fps Full instead HD — The difference in details is huge (but the files will be heavier).

For advanced users, there is a hidden Ultra mode HD, which combines multiple images into one super-detailed frame:

1. Open the Camera app.
2. Touch the icons ⚙️ (Settings).
3. Select the Permission. → Ultra HD (available only for the main module).
4. Take a picture while holding the phone still for 3-4 seconds.

⚠️ Attention: Ultra mode HD Create files of 20-30 MB. Before shooting, check the free space on the phone or insert a memory card (microSD up to 512 GB is supported).

If your photos are blurry, check:

• 🧊 Clean lenses (wipe with a napkin for glasses);
• 📏 Focus: tap the screen at the shooting point to capture the focus;
• 🔄 Stabilization mode: In video settings, enable Improved Stabilization.

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To capture documents, use Document mode in the camera app, which automatically aligns perspective and increases text contrast, making the images suitable for scanning.

Communications and Networks: How to Improve Signal and Internet Speed

Redmi Note 9 Pro is supported by 4G LTE, VoLTE (voice by voice) LTE), Wi-Fi 5 (802.11ac) But by default, many of the features are disabled to save power. Here's how to maximize speed and stability of communication:

• 📶 Enable VoLTE: Settings → SIM-maps and mobile networks → [Yours. SIM] → Enable VoLTE. This improves call quality and reduces connection time.
• 🌐 Set Network Priority: C Settings → SIM-map → Preferred type of network select 4G (preferably).
• 📡 Optimize Wi-Fi: In Settings → Wi-Fi → Additionally, enable Automatic Open Network Connection (caution – only for verified points!). Activate Smart Switch Wi-Fi/Mobile data for smooth transition between networks.

If the internet is slow, check:

To improve the signal in areas with poor coverage:

1. Turn on Flight Mode for 30 seconds, then turn off - this will reset the connection to the tower.
2. If you're in the zone. 3G, forcefully switch to 2G (Settings → SIM-map → Preferred type of network → Only 2G), avoiding constant reconnection.
3. Use Network Signal Guru applications to analyze nearby towers and choose the best one.

FAQ: Answers to Frequent Questions