Disable MIUI Optimization on Xiaomi Redmi Note 7: 5 Proven Ways

Xiaomi Redmi Note 7 is still popular due to its balanced features and affordable price. However, owners of this model often face interface slowdowns, spontaneous closure of applications and overheating - the blame for aggressive optimization of MIUI, which is sparingly allocates resources, but sometimes does it too zealously. In this article, we will discuss how to completely or partially disable the optimization of the system to return the smartphone performance without losing stability.

It’s important to understand that switching off optimization is an interference with firmware that can affect autonomy and heat. On the Redmi Note 7 with its Snapdragon 660 and 3/4 GB of RAM processor (depending on version), the wrong settings can make things worse. So we’ll look at both secure methods through standard settings and advanced ones using ADB and modified firmware.

Before you start, check your firmware version in Settings → About Phone → MIUI version. The instructions below are relevant for MIUI 10–14 (including global and Chinese builds). If you have custom firmware like Pixel Experience or LineageOS, some methods may not work.

1.What is MIUI optimization and why it should be turned off

Optimization in MIUI is a set of algorithms that:

• 🔄 Limit the background activity of applications (even if you haven’t closed them).
• ⚡ Reduce the clock frequency of the processor when simple or heating.
• 🗑️ Cleansing memory from "unnecessary" processes (according to the system).
• 🔋 Block auto-start to save battery power.

On paper, this sounds reasonable, but in practice it leads to:

• 🐢 Delays in switching between applications (you have to wait for the restart).
• 📵 Missed notifications (for example, from messengers or mail).
• 🎮 Laham in games due to sudden performance decline.
• 🔄 Spontaneous reboot of background services (for example, music players).

The problem is especially acute on the Redmi Note 7 with 3 GB of RAM - the system simply does not have enough resources for competent memory management.

• ✅ Keep applications in memory longer (no permanent reboots).
• ✅ Get notifications on time (without delays) MIUI Optimization Service).
• ✅ Avoid drawdowns FPS in games because of processor trottling.

⚠️ Attention: On some firmware (MIUI 12.5+) A complete shutdown of optimization can result in a 15-20% increase in battery consumption.If autonomy is critical to you, use partial methods (Section 3).

2. Method 1: Disconnection through the developer settings

The easiest and safest method is to use hidden developer mode options, which does not require superuser rights and runs on any version of MIUI.

Steps:

1. Activate Developer Mode: Go to Settings → About Phone. Tap 7 times on MIUI Version (you will be notified "You're a developer!").

Settings → Additional → For Developers

• Limit background processes → Select Without limitations.
• Optimize MIUI (or Improve MIUI Performance) → Turn off the slider.
• Windows animation, transition animation → Install off. (speeds up the interface).
• Reset the device.
• Connect Redmi Note 7 to your PC and confirm debugging permission.
• Open the command prompt (cmd) in the folder with the platform-tools and type:

adb shell


pm uninstall -k --user 0 com.miui.powerkeeper




pm disable-user --user 0 com.xiaomi.mipowersaving




pm disable-user --user 0 com.miui.securitycenter




pm disable-user --user 0 com.miui.analytics




settings put global hidden_api_policy 1

These teams:

• 🛑 Disable the PowerKeeper service (main "optimizer" MIUI).
• 🔌 Deactivate background energy saving processes.
• 📊 Block analytics collection (reduces system load).
• 🔓 Unlock the hidden API (I need some tweaks).

⚠️ Note: After completing these commands, do not update the firmware through OTA — It'll bring back optimization. Use only handheld firmware (fastboot or recovery).

To get it all back, do this:

pm install-existing --user 0 com.miui.powerkeeper


pm enable --user 0 com.xiaomi.mipowersaving

💡

Before using ADB, create a restore point in TWRP (if installed) to revert to the working version if you make errors.

5. Method 4: Use of third-party utilities (without root)

If ADB seems complicated, you can use specialized applications. They don't require superuser rights, but some features may be limited.

Top.-3 utility for Redmi Note 7:

1. MIUI Optimizer (formerly Optimizer) MIUI Battery Optimizer) 🔹 Disables background optimization for selected applications. 🔹 Allows you to configure Doze Mode (Android sleep mode). 🔹 Compatible with MIUI 10 to 14. You can download it. XDA Developers (Look for the Up-to-date Version for Your Firmware).
2. Greenify 🔹 "Freezes unnecessary system processes. 🔹 It works without root, but with ADB unlock more functions. 🔹 Useful for fighting com.miui.daemon (main optimizer).

Battery Guru

• 🔹 Monitoring and blocking background activity.
• 🔹 Shows which processes are most loading the system.

⚠️ Note: Apps like Greenify may conflict with MIUI Test the settings gradually, starting with minimal changes.

6. Method 5: Install custom firmware (for experienced)

If you're tired of the limitations of MIUI, the radical solution is to switch to custom firmware without optimization.

Popular firmware:

• 🔄 Pixel Experience – pure Android without unnecessary services.
• ⚡ LineageOS is a fast and stable alternative.
• 🎯 Havent OS — play-optimized.
• 🔋 DerpFest – Balanced in Performance and Autonomousity.

How to determine:

1. Unlock bootloader via Mi Unlock Tool (requires Xiaomi account binding).
2. Install a custom TWRP recap for lavender.
3. Download the firmware (for example, with XDA) and transfer to the phone.
4. In TWRP, run: Wipe → Advanced Wipe (tag Dalvik, Cache, System, Data). Install → select the firmware file. Reboot System.

Advantages:

• ✅ No. MIUI Optimization of Service and Similar Services.
• ✅ More control over the core and task planner.
• ✅ Regular security updates from the community.

Disadvantages:

• ❌ Loss of official warranty (unless you unlock the bootloader back).
• ❌ Possible bugs with camera or sensors (depending on firmware).
• ❌ No built-in Xiaomi services (Mi Cloud, Themes, etc.).

💡

Custom firmware gives you maximum performance, but it requires technical skills. If you're a beginner, start with methods 1-3.

7. Frequent mistakes and how to avoid them

When you turn off optimization, users often face problems.

If the phone has become worse after manipulation:

1. Return all settings to the factory for developers.
2. Cache reset: adb shell su rm -rf /cache/*
3. If critical failures, make a hard reset (Settings → System → Reset).

On the Redmi Note 7 with firmware older than MIUI 12.5, disabling com.miui.powerkeeper can lead to a reboot cycle, requiring a fastboot flash.

FAQ: Answers to popular questions