How to overclock Xiaomi Redmi 9: 7 proven ways to increase the speed of the smartphone

Xiaomi Redmi 9

Disperse

Redmi 9

MIUI 12–14

Android 10–12

Many users mistakenly think that overclocking is only about increasing the clock speed of the processor, but in fact performance depends on a set of factors: free RAM, background activity of applications, state of the drive and even the temperature of the chipset, we will analyze all methods, from basic to advanced, so that you can choose the best option for your tasks.

⚠️ Critical Warning: Any manipulation of system files or firmware can result in loss of warranty, device brik or unstable operation, especially with methods that unlock the bootloader and install custom cores. If you are not sure about your actions, limit yourself to the “software” methods of the first three sections.

1. Cleaning the system: remove garbage and optimize memory

The first and safest step is to free up memory. Redmi 9 is equipped with 3-4 GB of RAM and 32-128 GB of ROM, but even this is not long enough if you do not follow the tails of applications. MIUI:

Go to Settings → Applications → Cleanup. This will show the cache volume, unnecessary files and duplicates. Click Clean to free up 1-3 GB of space. Also check the Warehouse → Analysis section where you can manually delete large files (such as uploaded videos or unused APKs).

✅ Checklist before cleaning:

Pay special attention to background processes. In Settings → Battery and Performance → Battery Management, turn off auto-start for instant messengers, games and social networks that you don’t use daily, which will reduce the load on the Helio G80 processor and increase the time without recharging.

⚠️ Warning: Do not clear the cache of system applications (e.g. com.android.systemui) – this can cause interface failures. Also avoid Google Play cleaners: many of them consume resources themselves and display false notifications of “critical errors».

2 Developer Settings: Hidden Opportunities for Acceleration

Hidden in MIUI are features that allow you to improve performance by turning off visual effects and optimizing animations, so you can activate them:

1. Go to Settings. → The phone.
2. Click 7 times on the MIUI version until the notification “You became a developer” appears.
3. Go back to the main settings menu and open a new section for developers.

Now key changes can be made:

• 🔄 Turn off animation: Find the window animation scale, transition animation scale, and animator duration scale. Set an animation value to everyone. 0.5x — This will speed up the opening of applications by 15-20%.
• 📱 Limit background processes: In the "Limit of background processes" option, select "No background processes" or "Maximum 2" process. This will reduce the load on RAM, but some applications will have to restart more often.
• 🔋 Turn off the check. USB: Parameter Debugging by USB You can leave it on, but deactivate the check. USB-Configuration – This will speed up PC connection.

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If after changes in the developer settings, the smartphone began to overheat, return the background process limit parameter to the default value (Standard limit).

⚠️ Warning: Do not activate the option Do not turn off the screen, this will lead to rapid battery discharge and overheating. GPU-acceleration if you don’t understand its impact on the chart.

3. firmware update: why it's important for overclocking

The performance of Redmi 9 is directly dependent on the version of MIUI and Android. Xiaomi regularly releases updates that optimize the work of the Helio G80 chipset and fix the errors that slow down the system.

1. Open Settings → About the phone → System update.
2. Click on "Check Updates."
3. If a new version is available, download and install it (preferably via Wi-Fi).

📊 Comparison of performance on different versions MIUI for Redmi 9:

If official updates are not available, you can try regional firmware (e.g. MIUI EU or Global Stable) via Fastboot. However, this requires unlocking the bootloader and can lead to data loss.

Installation of the custom core: a risky but effective method

For advanced users willing to sacrifice the warranty, there is a way to overclock the processor by installing an alternative core, which allows you to increase the clock speed of the Helio G80 (standard 2.0 GHz) and optimize power consumption. Popular cores for Redmi 9:

• 🔥 KernelSU: Supports root access and fine-tuning frequencies through apps like Kernel Adiutor.
• ⚡ Perseus Kernel: Optimized for gaming, reduces trottling (automatic frequency reduction when heated).
• 🛠️ FrancoKernel: Improves the balance between productivity and autonomy.

🔧 Step-by-step instructions (for experienced users only!):

⚠️ Warning: An incompatible core can lead to bootloop (loop loading) or overheating. XDA or 4PDA And remember, unlocking the bootloader resets all the data!

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Castom cores can increase performance by 10 to 30 percent, but require deep firmware knowledge, and for most users, optimization through system tuning and cleaning is enough.

5.Using Overclocking Apps: What Really Works

There are hundreds of Google Play utilities that promise to "overclock your smartphone 2 times," but 90% of them are empty. We tested real-life tools for Redmi 9:

• 🚀 Game Turbo (built-in to the game) MIUI): Optimizes game performance by blocking notifications and allocating maximum resources. Activated via Settings → Special facilities → Game mode.
• ⚙️ CPU Tuner (requires root): Allows you to manually set the CPU frequencies and GPU, It's also power profiles, and it's fine-tuning.
• 🧹 SD Maid: Deep cleaning of the system from residual files and duplicates (works without root, but with it is more efficient).
• 🔄 Greenify: Freezes background apps, preventing them from spontaneously running.

📌 Example of Game Turbo customization for maximum performance:

1. Open Settings → Special Opportunities → Game Mode.
2. Turn on the switch Game mode.
3. In the Game Settings section, select Performance.
4. Activate the options to Disable Auto Brightness and Block Notifications.
5. Add the games to the list by adding games.

⚠️ Attention: Apps like CPU Tuner can damage the system if you set the wrong frequencies. G80 — This will lead to overheating and trolling.

Hardware methods: cooling and replacement of thermal paste

If Redmi 9 starts to "brake" when loading (games, video editing), the cause may lie in overheating. Helio G80 chipset is prone to trottling at temperatures above 70 ° C, which leads to a forced frequency reduction.

• ❄️ External cooling: Use cooling stands with fans or gel pads (such as Baseus Cooling Pad).°C.
• 🔧 Thermopaste replacement: Over time, the factory thermopaste dries up, replaced with a high-quality one (e.g., Arctic). MX-4) heat-producing.
• 📱 Removing the back cover: If the phone warms even in plain, check if the battery is swelling (it is dangerous!).

🔧 How to Replace Thermopaste by Yourself:

⚠️ Warning: Disassembling your phone is not warranty-free! If you're not sure about your skills, contact the service center. Also, don't use metal tools - they can damage the plumes.

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Cooling the processor to 60–65°C avoids trolling and increases performance by 10–15% without software interventions.

7.Alternative firmware: LineageOS and others

If standard MIUI doesn’t suit you, you can install custom Android firmware (like LineageOS, Pixel Experience, or Havoc OS) that lacks Xiaomi’s heavy interface and often runs faster.

🔄 The pros and cons of custom firmware:

🔧 How to install custom firmware:

1. Unlock the bootloader (see section 4).
2. Install TWRP Recovery.
3. Download firmware (for example, with XDA) and GApps (Google service package).
4. In TWRP, run Wipe → Advanced Wipe (mark Dalvik, Cache, System, Data).
5. Sweep through the firmware and GApps, then restart.

⚠️ Note: Castom firmware may not support data encryption, making your phone vulnerable to data theft, and some banking applications (e.g. SberBank Online) refuse to work on uncertified builds.

FAQ: Frequent questions about Redmi 9 overclocking