Xiaomi Redmi smartphones are known for their price-performance ratio, but even the most powerful models eventually begin to “brake”. MIUI, It's the background processes, the application cache, and the suboptimal system settings. Fortunately, most problems are solved by software optimization without having to go to a service center.
In this article, we will discuss 15 How to Optimize Redmi Note 12/11/10 Pro, Redmi 9/10 And other models, from basic cache cleaning to fine-tuning the CPU core, will focus on extending battery life, because improper charging settings can reduce battery life. 30–40% It's already a year of active use, and all the instructions are up to date. MIUI 14/13/12 adapted to Russian realities (including bypassing Google’s restrictions).
Before you start optimizing, check the current state of the smartphone:
- 🔋 Battery charge: If below 20%, connect charging – some operations (such as defragmentation) require stable power supply.
- 📱 Free memory: less than 10% of the free space on the internal drive leads to lags.Free at least 5-7 GB.
- 🔄 Version. MIUI: Update your firmware to the latest stable version via Settings → The phone. → Updating the system.
1. Cleaning the system: remove garbage and cache without harming data
The first step to optimization is to thoroughly clean up unnecessary files. MIUI There are built-in tools, but they often skip hidden debris.
Start with the built-in “Optimizer”:
- 🧹 Open the Settings. → Annexes → Optimizer.
- 🔍 Click on Deep Clean and wait for analysis (may take 2-5 minutes).
- ⚠️ Do not manually delete application data through this section – only cache!
For more thorough cleaning, use the application SD Maid (available on Google Play):
What happens if you clear the cache of all applications?
Critical error of many users: cleaning the cache through the engineering menu (#4636##) can lead to a failure MIUI on Redmi models with MediaTek processors (e.g. Redmi) 9A Use official methods only!
2.Setting up the boot: which apps can be turned off without risk
Background processes are the main cause of battery discharge and lag. MIUI There is a hidden boot control section that allows you to disable unnecessary services.
How to get into the autoload menu:
- 🔧 Go to Settings. → Annexes → Application management.
- 🔍 Slip on the three dots in the upper right corner and select “Shoot up».
- ⚡ Turn off autostart for: 📱 Social media (Facebook, VK, TikTok – They already consume a lot of resources). 🎮 Games, for example, PUBG Mobile, Genshin Impact). 🛒 Store Apps (AliExpress, Wildberries) if you do not use discount notices.
Disable Auto-Run Facebook and Instagram
Remove from the autoload messengers, except the main one
Disable autoplay of games (e.g. Free Fire, Call of Duty Mobile)
Leave only system applications in the autoboot (Phone, Messages, Google Services)
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⚠️ Note: Do not turn off the autoload for:
- com.miui.securitycenter (Security Center) MIUI).
- com.android.phone (Telephone services).
- com.google.android.gms (Google Services – push notifications will stop working).
Disabling these processes can result in network loss or a cyclical smartphone reboot.
3. Battery Optimization: How to Extend Life by 30-50%
The battery is the most vulnerable spot in Xiaomi Redmi, with an average battery life of 400 to 500 full charge cycles, after which the capacity drops by 20 to 30 percent, and the right settings will help extend that lifespan to 600 to 800 cycles.
Basic charging rules:
- 🔌 Avoid deep discharge (below 10%) and full charge (above 90%.
- ⚡ Use original chargers (especially for models with Fast Charge) 33W/67W). Cheap Chinese adapters could damage the power controller.
- 🌡️ Do not charge your smartphone at a temperature below 0°C or higher than 40°C – This accelerates battery degradation.
| Parameter | Recommended value | Why is it important? |
|---|---|---|
| Maximum level of charging | 80% | Reduces battery load, increases the number of cycles |
| Minimum discharge level | 20% | Deep discharge destroys the structure of lithium-ion elements |
| Charging temperature | 10–30°C | Overheating speeds up chemical reactions, shortening service life |
| Use of fast charging | Only if necessary. | High currents heat the battery, it is better to charge on 10W–18W |
V MIUI 14/13 There is a hidden function called “Smart Charging” that automatically limits the charge to 80%:
- Activate Developer Mode: Settings → About Phone → MIUI version (shap 7 times).
- Back to Settings → Additionally. → For developers.
- Find the option “Restrict battery charging” and turn it on.
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If your Redmi is getting too warm while charging, remove the case and put the smartphone on a flat surface (not on a pillow or blanket).°C can damage not only the battery, but also the processor.
4. Memory defragmentation: why it matters for Xiaomi Redmi on eMMC
Many Redmi models (e.g. Redmi) 9A, Note 8 Pros are equipped with eMMC memory, which is fragmented over time, which leads to slow reading/write and lags when running applications. Defragmentation helps to return the original speed.
How to start defragmentation:
- 📱 Connect your smartphone to charging (process requires stable power supply).
- 🔧 Go to Settings. → Memory. → Cleanup.
- 🔄 Tap "Defragmentation" and wait until it is completed (may take 10–30 minutes).
⚠️ Attention: Don't interrupt the defragmentation process! UFS 2.1/2.2 (Redmi Note 10 Pro, Note 11 Pro+) This process is automatic, but on eMMC it must be manually run once in a while. 2–3 month.
If defragmentation doesn’t help, check the memory status through the engineering menu:
adb shell dumpsys devicestoragemonitorLook for lines with health – if the value is below 80%, the memory is worn out and needs to be replaced.
5. Optimization MIUI: Disable animations and unnecessary functions
MIUI It's known for its heavy interface, with lots of animations and background processes, and turning off the effects can speed up a smartphone by 15 to 20%.
How to remove animations:
- 🔧 Activate the developer mode (see the section on the battery).
- 🎨 Go to Settings. → Additionally. → For developers.
- 🔍 Find the settings: Window animation scale → set up 0.5x. Transition animation scale → set up 0.5x. Animator duration scale → set up 0.5x.
Also disable unnecessary functions MIUI:
- 🌐 «Second space" (Settings) → Special facilities → Second space – consumes up to 500 MB of memory.
- 📡 «File transfer (Mi Share) – works in the background and consumes battery.
- 🎵 «Effects of sound” (Settings) → Sound. → Sound effects – turn off if not used.
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Disabling animations does not affect performance in games or benchmarks, but makes the interface visually faster. especially noticeable on budget models (Redmi). 9C, Redmi A1).
6. Permissions Management: What Rights Apps Have Excessive
Many apps request excessive permissions that not only threaten privacy, but also consume smartphone resources.For example, Facebook can ask for access to geolocation, microphone and camera even in the background.
How to limit rights:
- 🛡️ Go to Settings. → Confidentiality → Permits.
- 🔍 Select a category (e.g., “Camera” or “Microphone»).
- 🚫 Disable access for applications that do not need it: 📸 Google Play Store Should Not Have Camera Access. 🎤 AliExpress or Wildberries don't need a microphone. 📍 TikTok or Instagram can be restricted to geolocation only when you use it.
For advanced users: use them. ADB-commands to completely shut down background activity:
adb shell cmd appops set < application package > RUN_IN_BACKGROUND ignoreFor example, for Facebook:
adb shell cmd appops set com.facebook.katana RUN_IN_BACKGROUND ignore7.Alternative firmware: when to switch to Pixel Experience or LineageOS
If all optimization methods have failed and the smartphone is still slowing down, consider installing custom firmware.This is true for models older than 2-3 years (Redmi Note 8 Pro, Redmi 7), which no longer receive updates. MIUI.
The advantages and disadvantages of alternative firmware:
| Firmware | Pluses | Cons | Suitable models |
|---|---|---|---|
| Pixel Experience | Clean Android, fast updates, no Bloatware | The camera may not be working at full capacity. | Redmi Note 7/8/9 Pro, Redmi K20 Pro |
| LineageOS | Stability, support for older devices | Minimalist design, no branded chips MIUI | Redmi 5/6/7, Redmi Note 5/6 |
| Xiaomi.EU | MIUI without advertising and Chinese services | Requires unlocking the bootloader, possible bugs | All Redmi models with official support |
⚠️ Attention: Installing custom firmware resets the warranty and can lead to a device blink if you do not follow the instructions:
- 🔋 Charge your smartphone to 100%.
- 📥 Make a backup through TWRP Or Orange Backup.
- 🔓 Unlock the bootloader (fastboot oem unlock).
How to return the official MIUI after custom firmware?
8 Hardware Optimization: When to Change Your Thermopaste or Battery
If the software methods don't work, the problem may be in the hardware.
- 🔥 The smartphone overheats even when light load (for example, WhatsApp).
- 🔋 Battery discharges in 2-3 hours without active use.
- 🐢 Strong lags when opening a camera or launching games.
What can be done:
- 🧴 Replacement of thermopaste (relevant for Redmi Note) 10 Pro, Redmi K40 and other models with Snapdragon 7xx/8xx). Cost of service in the service center — 1 000–1 500 ₽.
- 🔋 Replacement of the battery (if the capacity has fallen below 70% of the original).The original battery for Redmi costs 1,500-2,500 ₽.
- 🛠️ Cleaning the charging connector (dust and oxidation can cause overheating when charging).
For self-diagnosis, use the application AIDA64:
- 🌡️ Check the temperature of the processor in the section "Sensors" (normal - up to 45).°C in plain, up to 70.°C under load).
- 🔋 In the section "Battery" look at the current capacity (if less than 80% of the declared - it's time to change).
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If the heat paste or battery continues to warm after replacing, the problem may be the power controller or processor, in which case repairs will cost more than buying a new Redmi budget line.