Xiaomi Redmi Optimization: 15 Proven Ways to Speed Up and Extend Your Smartphone Life

Xiaomi Redmi smartphones are known for their price-quality ratio, but even the most productive models eventually begin to “slow down.” The reasons are diverse: from cache clogs to suboptimal MIUI settings. This article will help to return the device to its former speed, increase autonomy and get rid of excess “garbage” – without root rights and complex manipulations.

We will discuss both basic methods (cleaning cache, disabling background processes) and advanced tricks (kernel setting, MIUI 14/15 optimization). All recommendations are tested on the Redmi Note 12/13 Pro, Redmi 10/11 and POCO X5 models, but will be suitable for most devices on MIUI or HyperOS. Importantly, some features may differ depending on the firmware version.

Before you start, check the current state of the smartphone. Go to Settings → About Phone → System Status and note: 1) Occupied space in the Memory section, 2) Processor Temperature (optimally up to 40°C in idle), 3) Battery life for the last cycle.

This data will be the starting point for assessing the effectiveness of optimization.

1. Cleaning the system: remove garbage and cache

The first step is to get rid of unnecessary files that take up space and slow down, starting with the built-in MIUI tools:

• 🧹 Cleaning up garbage: Go to Settings → Memory. → Cleanup. This is where the system will show you the amount of unnecessary files (app cache, temporary data, remnants of deleted programs). 500 MB to 2-3 GB.
• 🗑️ Removing duplicates: In the same section, select "Files» → «Xiaomi will automatically find duplicate photos, videos and documents, and delete all the extra ones, which will save up to 10% of memory.
• 📁 Large files: In the Files tab, sort content by size. Often, forgotten videos are found in the file. 4K messengers.

For deep cleaning, use third-party utilities such as SD Maid (requires root for full functionality) or Files by Google. The latter is free and effective for finding garbage in /storage/emulated/0/, a folder where many applications dump unnecessary data.

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If after cleaning the smartphone still brakes, check the folder Download – often there accumulate gigabytes of forgotten APK-file-archive.

Cache Warning: Do not manually clear the cache of system applications (e.g. com.android.systemui) through Settings → Applications. This can cause interface failures. Only use the built-in Cleanup feature from the first item.

2. MIUI optimization: disabling unnecessary functions

MIUI is overloaded with background processes and animations that eat up resources.

• 🎭 Interface Animations: Activate Developer Mode (7 once click on "Version" MIUI» In Settings → About the phone, then go to Settings → Additionally. → For developers and set: The scale of the animation window → Disable Transition Animation Scale → Disable the duration of the animator → 0.5x This will speed up the opening of applications to 15-20%.
• 🔄 Auto-Update Apps: In Google Play → Settings → Auto-Update Apps Select Never. Manually Update Every 2 Weeks.
• 📡 Background activity: C Settings → Annexes → Disable Auto Start and Background Activity for unnecessary programs (such as games or social media).

Critical Battery Customization: In Settings → Battery → Battery Mode, select Balanced instead of Performance.This will limit background activity and increase your running time by 10-15%.

3. Application management: what to remove and what to leave

Even after resetting to factory settings, Xiaomi Redmi contains dozens of pre-installed apps, many of which duplicate features or are useless at all.

To remove system applications without root rights, use the ADB command:

adb shell pm uninstall -k --user 0 com.mi.android.globalFileexplorer

(Replace com.mi.android.globalFileexplorer with the application package you want.) A list of packages can be found in App Inspector (available in Settings → Developer).

⚠️ Note: Do not delete applications with com.android. or com.miui packages. this may cause the system to fail. Also do not touch Mi Security (com.miui.securitycenter), otherwise you will lose access to the security settings.

4. Battery Optimization: How to Extend Autonomy by 30%

Battery is a weak point for many Redmi models, especially low-end models with a capacity of 4000-5000 mAh. The following settings will help to increase the time without recharging:

• 🔋 Limitation of charging to 80%: B Settings → Battery → Battery settings enable "Restricted Charging." This will extend the battery life on the battery. 20-30%.
• 🌙 Dark subject. + AOD: Enable a dark theme (Settings) → Screen. → Dark theme) and turn off Always On Display (if any). AMOLED-This saves up to 5% of the charge per hour.
• 📶 Energy saving mode: In Settings → Battery → Select "Energy Saving" to battery mode, which will limit performance, but add to it. 2-3 self-dependency.
• 📍 Geolocation and background data: C Settings → Confidentiality → Permits → Geodata disable access for unnecessary applications. Do the same for Background Data in Settings → SIM-maps and mobile networks → Transfer of data.

For advanced users, use the AccuBattery app (free on Google Play) to show real battery capacity, discharging speed and optimal charging current. According to tests, charging the Redmi Note 12 Pro with current to 1.5A (instead of the standard 2.5A), you can increase the number of charging cycles from 500 to 800.

Turn off AOD|Enable dark theme |Limit background application activity |Install AccuBattery|Enable power saving mode-->

5.Performance acceleration: Set up the core and memory

If your Redmi is slowing down when opening apps or while playing games, the problem may be in suboptimal kernel settings or a lack of RAM.

1. Optimization of RAM:

In Settings → About Phone → Memory → Memory settings, turn on “Clean Memory When Locking the Screen.” Also in Settings → Additional → Special Features → System Acceleration, activate “Memory Optimization”.

2. kernel setting (requires root or Magisk):

Install the Kernel Adiutor module or FrancoKernel from Magisk. Recommended settings for the Snapdragon 6xx/7xx:

• CPU Governor: Schedutil or Performance (for games)
• Max. frequency of the CPU: 80-90% of the maximum (for example, 2.0 GHz instead of 2.2 GHz)
• Minimum GPU frequency: 300-400 MHz

⚠️ Warning: Incorrect kernel settings can lead to overheating or sudden reboots.Before experimenting, back up through TWRP or adb backup.

3. Virtual memory (swap):

If you have little RAM (3-4 GB), create a swap file.

1. Install Termux and execute: pkg install root-repo pkg install swap-utils su -c "fallocate -l 1G /sdcard/swapfile" su -c "mkswap /sdcard/swapfile" su -c "swapon /sdcard/swapfile"
2. Add /sdcard/swapfile none swap sw 0 0 to /etc/fstab (requires root).

This will add 1GB of “virtual” memory, but reduce the lifespan of flash memory.

6. Network Optimization: Accelerating Internet and Communication

Slow internet or poor connectivity is a common problem for Redmi, especially in Mediatek models.

• 📶 Network Selection: C Settings → SIM-maps and mobile networks → Preferred network type select only LTE (if 5G It'll reduce switching between standards and save you charge.
• 🔄 Reset Network Settings: Go to Settings → Connections → Resetting Wi-Fi, mobile network and Bluetooth settings will help if internet speeds suddenly drop.
• 🌍 DNS-Servers: Change the Wi-Fi settings DNS on 1.1.1.1 (Cloudflare or 8.8.8.8 (Google. This will speed up the loading of pages on 10-30%.
• 📡 Modem mode: If you use your phone as an access point, in Settings → Access Point and modem → Access point settings set Wi-Fi channel to 6 or 11 (less loaded).

To check the real speed of the network, use NetMonster or CellMapper.

- Signal of neighboring towers (RSRP should be higher than -100 dBm),

The LTE frequency used (B3 bands (1800 MHz) or B7 bands (2600 MHz) are usually faster)

Ping and jitter (it is critical for online gaming that ping is below 50ms).

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If mobile internet speeds drop in certain places (like at home), the problem may be tower congestion, and try to force 3G to your network settings, which sometimes gives you a more stable connection.

7. firmware update: when and how to do it

Regular MIUI or HyperOS updates fix bugs, improve performance and add new features, but not all updates are useful — some bring bugs or impair autonomy. Here's how to update correctly:

1. Check the current version:

Go to Settings → About Phone → MIUI Version. Compare it to the latest stable versions on Xiaomi’s official website.

Methods of updating:

• 🔄 By air (OTA): Settings → The phone. → System updates. The safest method, but updates come with a delay.
• 📥 Manual Installation: Download the full firmware package (.zip) from Xiaomi’s website, then to Settings → The phone. → Update system press three points → «Select the update file».
• 🔧 Through Fastboot: For power users. Requires unlocked bootloader and Mi Flash Tool.

⚠️ Note: Do not install firmware for other regions (e.g., Chinese firmware for the global model) and this will cause Google services to fail, NFC Check the model code (Redmi Note 12 Pro) = sweet, Redmi 11 = spes).

Recoil of the update:

If there are bugs after the update, go back to the previous version:

1. Download the necessary firmware with Xiaomi Firmware Updater.
2. Go to TWRP (requires an unlocked bootloader).
3. Select Wipe → Advanced Wipe → Dalvik/ART Cache + Cache.
4. Install the firmware through Install.

8 Hardware Optimization: When to Clean Your Device

If the software methods didn't work, the problem could be the physical condition of the smartphone.

• 🔥 Overheating: If the phone is heated above 45°C in plain, check: - Are the ventilation holes closed (located on the lower end). - Is the battery not swollen (light a flashlight on the screen - if you see a "bubble", urgently change the battery). - Is the Type-C connector clogged with dust (clean with a toothpick).
• 🛠️ Battery wear: In Settings → Battery → Check the battery status for "Capacity." If it's lower. 80% From nominal, replace the battery — 1500-2500 ₽.
• 💾 Memory problems: If the phone spontaneously reboots or “flys out” of apps, check the health of flash memory through the app. AIDA64 (Storage section: Critical if the Reallocated Sector Count is above 10.

To clean the connectors and the body, use:

- Isopropyl alcohol (90%+) - for cleaning charging contacts.

Air compressor – to remove dust from speakers and microphones.

- Soft brush - for cleaning the connector SIM-map.

⚠️ Warning: Do not use cotton cotton cotton or cotton swabs to clean the connectors - the fibers can stay inside and cause short circuits. Also, do not blow into the connectors with your mouth - moisture from breathing oxidizes the contacts.

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If the phone gets worse at catching the network after the fall, check the antenna contacts (under the back cover). Often they move away from the board - this is corrected by soldering (cost). ~1000 ₽).

FAQ: Frequent questions about Xiaomi Redmi optimization