How to Optimize Xiaomi Redmi 7: 15 Proven Ways to Get Back to Performance

Xiaomi Redmi 7, released in 2019, is still a popular budget smartphone due to the balanced characteristics: Snapdragon 632 processor, 2-4 GB of RAM and a battery of 4000 mAh. However, over time, even this reliable device begins to “brake”, quickly discharge and overheat. The reasons are not in the “iron”, but in the system load, outdated software and suboptimal settings.

In this article, you will find practical optimization methods – from cleaning the cache and turning off background processes to fine-tuning. MIUI We're not going to say, "buy a new phone" -- with the right approach, Redmi. 7 serve out 2–3 All instructions tested on current versions MIUI 14 Android 9/10 (downgrade).

Important: optimization is not a one-time action, but a system. After applying the tips in this article, we recommend repeating the key steps (for example, cleaning the cache) every 1-2 months.

1.Diagnosis: Why is Redmi 7 slowing down?

Before you optimize, you need to understand the source of the problem. Redmi 7 has typical "diseases":

• 🐢 Lags when opening applications - a sign of a lack of RAM or an overloaded cache.
• 🔋 Fast discharge – background processes, unoptimized network settings or a worn-out battery are to blame.
• 🔥 Overheating – often caused by multitasking, gaming, or a CPU failure.
• 📱 Spontaneous reboots – may indicate a damaged firmware or application conflict.

To identify the “weakness”, use the built-in tools:

1. Open the Settings. → The phone. → System status and check CPU load, RAM and temperature.
2. Go to Settings. → Battery → Battery usage – you can see which apps are using up energy in the background.
3. Install a third-party software like this. CPU Monitor or AccuBattery for detailed diagnosis.

⚠️ Note: If the processor temperature exceeds 60°C in idle mode, this may indicate a hardware malfunction (e.g., thermopaste detachment). In this case, software optimization will not help - repairs are required.

2. Cleaning the system: remove garbage and cache

Application cache and system debris are the main “brakes” of Redmi 7. Even after deleting programs, their temporary files remain in memory, taking up space and slowing down, cleaning should be carried out in 3 stages:

Step 1: Built-in utility MIUI

Xiaomi provides its own cleaning solution:

1. Open the Security app (shield icon).
2. Select Cleanup. → Deep cleaning.
3. Tick all items (cache, unnecessary files, duplicates) and click Clear.

This utility removes up to 1-3 GB of garbage, but often skips deep system files.

Step 2: Manually clean the app cache

Some programs (like Facebook or Instagram) accumulate gigabytes of cache to manually clean it:

1. Go to Settings → Applications → Application Management.
2. Select an app (e.g. Chrome) → Storage → Clear the cache.
3. To completely reset, click Clear Data (delete accounts and settings!).

Step 3: Removing Systemic Garbage Through ADB

For advanced users: using Android Debug Bridge (ADB) You can delete hidden files that are not available through the interface. Connect the phone to the PC, enable debugging. USB (Settings → The phone. → Version. MIUI — Press 7 times, then return to the Additional Settings → For developers, and execute the command:

adb shell pm trim-caches -d 1000000

This command forcibly clears the cache of all applications, freeing up to 500 MB-1 GB of space.

⚠️ Warning: Do not use third-party cleaners like Clean Master or CCleaner, which often delete critical system files, causing crashes. MIUI. Enough built-in tools and manual cleaning.

3. Memory optimization: how to free RAM

Redmi 7 comes with 2-4 GB of RAM, but even 4 GB may be lacking due to “gluttony» MIUI And the background. Here's how to bring back smoothness:

Disabling background processes

Many apps continue to work after closing, consuming RAM and battery to limit them:

1. Go to Settings → Applications → Application Management.
2. Select an application (for example, VKontakte) → Battery → Limit background activity.
3. To completely disable the background, use the Settings → Battery → Power saving mode and add apps to the list of restrictions.

Auto-start setup

MIUI It allows you to control which programs are launched when you turn on the phone:

1. Open Settings → Applications → Autorun.
2. Turn off auto-run for unnecessary apps (such as games or instant messengers you don’t use daily).

This will free up to 300-500 MB of RAM at the start of the system.

Use of the Extended Mode function

V MIUI There is a hidden option for forced closure of background processes:

1. Activate Developer Mode (as in step C) ADB).
2. Go to Settings → Additional settings → For developers.
3. Find Do Not Save Actions and turn it on, which will cause the system to aggressively close the background tasks.

💡

If you have left the lag after optimizing RAM, try turning off the animation interface. To do this, in the Developer Settings, set the Windows Animation Scale, the Transition Animation Scale, and the Animator Duration to Disabled, which will visually speed up the system.

4. Battery setup: how to extend the operating time

The Redmi 7 4000 mAh battery should hold a charge of 1.5-2 days, but in practice many users experience a discharge in 8-10 hours.

• 📡 Continuous network search (especially in low signal conditions).
• 📱 Background synchronization (mail, messengers, cloud services).
• 🔍 Geolocation Services (Google, MIUI, taxi-carry).
• 🌡️ Overheating (discharge accelerates at temperatures above 40)°C).

Decisions:

Network optimization

A weak signal from a cellular network or Wi-Fi makes the communication module run at its limit, consuming battery power, to reduce consumption:

1. Turn it off. 4G, If you are in a bad area (go to the right place). 3G In Settings → SIM-maps and mobile networks → Preferred type of network).
2. Turn on the mode on the plane at night or on the subway.
3. Turn off Wi-Fi and Bluetooth when not in use.

Synchronization setting

By default. MIUI synchronizes data with Xiaomi servers every 15 minutes to reduce frequency:

1. Go to Settings → Accounts and Synchronization.
2. Select a Mi Account and turn off unnecessary options (such as syncing notes or calendar).
3. For a Google account, click on the icon ⚙️ → Synchronize your account and disable unnecessary services.

Geolocation management

Location services are some of the main battery eaters, and optimize them like this:

1. Open Settings → Privacy → Permissions → Geodata.
2. Turn off geolocation for applications that don’t need it (like Galery or File Manager).
3. Enable geodata energy saving mode (Settings) → geodata → Regime).

⚠️ Warning: If your phone is running 10-15% off overnight on standby, check your settings → Battery → Battery use. It's often the fault of apps like Facebook, Telegram or Mi Video that wake up to update content. Add them to background restrictions.

5. Update and firmware: should I upgrade to the new version?

Redmi 7 Officially Supported MIUI Update 12.5 to Android 10, but many users are experiencing bugs after updates: lags increase, errors with Bluetooth or the camera appear?

Pros and cons of updates

How do you upgrade safely?

If you want to update, follow this algorithm:

1. Make a backup of the data through Settings → Additional settings → Backup and reset.
2. Charge your phone at least 60%.
3. Connect to stable Wi-Fi (don’t use mobile internet!)
4. Update through Settings → The phone. → Updating the system, not through MIUI Downloader.
5. After the update, reset the cache (Settings) → Warehouse → Clear the cache).

Alternative: custom firmware

For power users, there is an option to install custom firmware (like LineageOS or Pixel Experience).

• 🚀 More recent version of Android (up to 12-13).
• 🧹 The lack of "junk" from MIUI (No advertising and unnecessary services).
• ⚡ Improved performance through an optimized core.

However, there are risks:

• ❌ Loss of warranty (if it is still valid).
• ❌ Possible bugs with camera or sensors.
• ❌ Difficulty rolling back to stock firmware.

💡

If your Redmi 7 is stable, then it is the current version. MIUI, Don't upgrade for new features. Stability is the priority, not freshness.

6.Performance optimization for gaming

Redmi 7 is not positioned as a gaming smartphone, but it can be comfortably played on it. PUBG Mobile, Call of Duty or Genshin Impact (on minimum settings:

Enabling Game Turbo Mode

It's a built-in tool. MIUI play-optimizing:

1. Open Settings → Special features → Game Turbo
2. Add the game to the list and activate the options: 🎮 Improved touch response (reduces delay of presses). 📵 Block notifications (to avoid distractions during play). 🔋 Battery optimization (limits background processes).

Setting up graphics in games

For smooth. FPS heavy-play:

• 🎨 Set a schedule on Balanced or Low.
• 🔄 Turn off the smoothing and shadows.
• 🖥️ Turn on the 60 mode. FPS (if maintained).
• 🔇 Reduce the sound quality in the game settings.

Phone cooling

Overheating is Redmi 7's main problem in gaming, to avoid trottling.

• 🧊 Remove your case during the game.
• 🌬️ Use a cooling stand or fan.
• 🔋 Close all background applications before launching the game.
• 📴 Reduce the brightness of the screen to 50–60%.

💡

If the game still lags, try to disable VSync in the developer settings (Debug) → Disable the hardware overlays. This can increase the FPS, But sometimes it leads to graphic artifacts.

7. Reset to factory settings: when and how to do?

If all the optimization methods didn't work, then the radical solution is hard reset, which will delete all the data, but it will return the phone to its original freshness.

• 🐌 Strong lags even after cleaning the cache.
• 🔄 Spontaneous reboots or departures from apps.
• 📱 Viruses (if the antivirus does not help).
• 🔧 Incorrect work after updating MIUI.

Resetting instructions:

1. Make a backup copy of the data (photos, contacts, messages).
2. Go to Settings. → Additional settings → Backup and reset → Resetting settings.
3. Choose to erase all data and confirm the action.
4. After resetting, set up the phone as new, but don’t restore data from backup – this can bring back old issues.

⚠️ Warning: If the phone still brakes after reset, the problem may be in the hardware (wear of flash memory, malfunction of the processor), in which case only repair or replacement of the phone will help.

8. Additional tips: hidden functions MIUI

MIUI It hides a lot of useful options that can improve the performance of the Redmi 7:

Ultra Battery Saver Mode

Activates the black and white interface and disables all background processes, extending the work time to 2-3 days:

1. Go to Settings. → Battery.
2. Select the ultra-low consumption mode.
3. Add only critical applications (calls) to exceptions, SMS).

Duplicate applications

It allows you to create a second account in messengers (for example, two WhatsApp):

1. Open Settings → Applications → Duplicate applications.
2. Select the app and click Duplicate.

Hidden gestures

MIUI Supports additional gestures that speed up navigation:

• 👆 Slipping up on the lock screen – quick camera start.
• 👇 Double touch on the screen – wake up the phone.
• 🔄 Circular movement on the lock screen - flashlight launch.

To enable them, go to Settings. → Lock screen and password → Additional settings.

FAQ: Answers to Frequent Questions