How to speed up Xiaomi Redmi Note 6 Pro: a complete guide to optimization

The Xiaomi Redmi Note 6 Pro is still a popular smartphone even years later, thanks to its balanced characteristics: a Snapdragon 636 processor, 4 GB of RAM and a 4000 mAh battery. However, over time, many users face slowdowns, interface hangs and long application loads. The reasons may lie in an overloaded MIUI system, fragmented memory or background processes that eat up resources.

In this article, we will look at 10 proven ways to speed up the Redmi Note 6 Pro, from basic settings to deep optimization. There will be no universal magic buttons here: only specific actions that explain why they work. It is important to understand that some methods require regular repetition (for example, cleaning the cache), while others give a one-off effect (turning off animations).

1.Cache and garbage cleanup in MIUI

The MIUI system actively uses cache to speed up applications, but over time these temporary files accumulate and begin to slow down the smartphone. On the Redmi Note 6 Pro, the cache can take up to 3-5 GB - this is critical for a device with 64 GB of memory. You need to clean it at least once every 2-3 weeks.

How to do this:

  • πŸ“± Go to Settings. β†’ Memory. β†’ Clean (or Settings) β†’ Warehouse β†’ Cleaning up garbage in new versions MIUI).
  • 🧹 Click "Clean up the garbage" and wait until the process is complete.
  • πŸ”„ For deep cleaning, select β€œCleaning App Cache” – this will remove temporary data from all programs.

⚠️ Warning: Don't confuse cache cleaning with app data deletion! Cache can be cleaned safely - it won't affect your accounts or saves. But the "Clean data" button in the app menu will reset all program settings to factory.

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After cleaning the cache, restart the phone – this will help MIUI reassemble temporary files from scratch and avoid lags when you first start applications.

2. Disable animation and visual effects

MIUI is known for its beautiful yet resource-intensive animations. On the Redmi Note 6 Pro with a Snapdragon 636 processor, they can create delays when opening menus or switching between apps. Disabling animations will not only speed up the interface, but also save battery life.

Instructions for manual unsetting:

  1. Activate Developer Mode: Go to Settings β†’ About Phone β†’ MIUI version and tap it 7 times.
  2. Back to Settings β†’ Additionally. β†’ For developers.
  3. Find the items: Windows animation scale β†’ select No animation; Transition animation scale β†’ No animation; Duration of animation β†’ Off..

The effect will be noticeable immediately: apps will open faster, and scrolling through the menu will become smoother. If the interface seems too sharp, return the animation scale to 0.5x - this is a trade-off between speed and visual comfort.

πŸ“Š You turn off animation on your Xiaomi?
Yeah, totally.
Partially (reduced)
No, I like smooth transitions.
I don't know how to do that.

3. Optimization of autoboot and background processes

Many of the apps on the Redmi Note 6 Pro run automatically when the phone is turned on and continue to run in the background, consuming RAM. This is one of the main reasons for slowdowns. MIUI has a built-in tool to manage autoload, but it is hidden in the depth of settings.

How to limit autoloading:

  • πŸ”§ Go to Settings. β†’ Annexes β†’ Application management.
  • πŸ“± Select the "Outload" tab".
  • ❌ Turn off auto-runs for unnecessary apps (especially instant messengers, games, and social media if you rarely use them).

For deeper optimization, use the limitation of background processes:

  1. Enable Developer Mode (see previous section).
  2. In Settings β†’ For developers, find the Process Limitation item.
  3. Select a Maximum 2 process in the background (this is optimal for 4 GB of RAM).
What applications can be safely turned off?
List of safe to disable autoboot: - Games (they already consume a lot of resources at launch). - Social networks (VK, Facebook, Instagram - they will be updated when opened). - Unnecessary system services (Mi Video, Mi Music, if you do not use them). - Bank applications (they already require manual password entry at each launch).

⚠️ Warning: Do not disable autoboot for system processes called com.android. or com.xiaomi. – this can lead to unstable phone operation. If errors occur after the changes, return the default settings.

4. reset to factory settings (hard reset)

If previous methods didn't work, and the phone is still slowing down, maybe the problem is the accumulated system bugs or software conflicts, and in this case, a complete reset will help, and it will return the Redmi Note 6 Pro to the out-of-the-box state. It's a radical but effective way, especially if you haven't updated your firmware in a long time.

How to make a hard reset:

  1. πŸ“² Backup important data (photos, contacts, messages) through Settings β†’ Additionally. β†’ Backup and reset.
  2. πŸ”„ Go to Settings. β†’ The phone. β†’ Resetting settings.
  3. πŸ—‘οΈ Select "Reset all settings" and confirm the action.

After discharge:

  • πŸ› οΈ Don’t restore all apps at once – install them one at a time, watching performance.
  • πŸ”„ Update. MIUI Up to the latest version through Settings β†’ Updating the system.
  • ⚑ Disable unnecessary features (e.g. Mi Cloud if you don’t use sync).
Action.The effectRisks.
Clearing the cacheFrees up 1-5 GB of memory, speeds up application launchesNo risk.
Cancel animationsThe interface is faster by 15-20%It might sound like a "sharp"
Restriction of autoloadingReduces the load on RAM, increases the working timeSome notifications may be delayed
Hard resetComplete elimination of system lagsLoss of data without backup

Make a backup copy of photos and videos|Save Contacts in Google Account|Write down passwords from Wi-Fi|Write out important SMS (if not synchronized)|Check that you know the username / password from the Mi Account (required after resetting)-->

5. Updating the firmware and core of the system

Slowdowns on the Redmi Note 6 Pro are often associated with an outdated version of MIUI. Xiaomi regularly releases updates that optimize the processor and fix errors. For example, in versions of MIUI 12.5 and later, improved work with RAM, which is especially important for devices with 4 GB of RAM.

How to update firmware:

  • πŸ”„ Go to Settings. β†’ Updating the system.
  • πŸ“₯ Click "Check Updates." If a new version is available, download it and install it.
  • ⚑ Connect your phone to charging – the update should not be interrupted due to battery drain.

If the official updates are no longer coming out (for example, for the global version of the Redmi Note 6 Pro after MIUI 12.5), you can consider custom firmware like LineageOS or Pixel Experience. However, this requires unlocking the bootloader and may be unwarranted.

⚠️ Warning: Do not install firmware from other models (for example, from Redmi Note 7) - this will lead to a "brick" (breakdown) of the phone. Always check the compatibility by device code (tulip for the global version of Redmi Note 6 Pro).

6. Use of lightweight alternative firmware (for advanced)

If standard methods didn't work, and the phone is still slowing down, you can install custom firmware. This is a radical step, but it gives a second wind to older devices, like LineageOS or HavocOS, which is faster than MIUI because of the lack of background processes and optimized core.

What will be required:

  • πŸ”“ Unlocked bootloader: This requires you to link your Mi Account to your device and wait 7-15 days (Xiaomi Rules).
  • πŸ’» Computer with installed ADB and Fastboot.
  • πŸ“± Tulip compatible firmware (Redmi Note 6 Pro code).

Step-by-step:

1 Unlock the bootloader through the Mi Unlock Tool.


2. Install TWRP Recovery (Castom Recovery).




3. Make a backup of the current firmware in TWRP.




4.Sweeten custom firmware (e.g. LineageOS 18.1 based on Android 11).




5. Install Gapps (Google Services) and Magisk (for root rights, if necessary).

⚠️ Note: Installing custom firmware will void the warranty and may result in data loss. If you are not sure about your skills, it is better to consult a specialist, IR-blaster NFC) They may not work properly.

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Custom firmware can increase productivity by 30-40%, but it requires technical skills. If you are not willing to take risks, limit yourself to optimizing standard MIUI.

7.Memory optimization: transferring applications to SD-map

The Redmi Note 6 Pro supports microSD cards up to 256GB, but by default, the apps are installed in internal memory. If it is 80% or more full, the phone starts to slow down. SD-map.

How to do this:

  1. πŸ“± Put it in. SD-map (preferably class) UHS-I or A1 speed).
  2. πŸ”§ Go to Settings. β†’ Annexes β†’ Application management.
  3. πŸ“€ Select the application β†’ "Warehouse" β†’ "Change" β†’ specify SD-map.

⚠️ Note: Not all applications support portability SD. Also note that once the card is removed, the programs will stop working. This is not the best option for games - they can lag due to the slow reading speed of the game. SD.

The alternative way is to use SD-Card as internal memory (Adoptable Storage function in Android:

  • πŸ“± Put it in. SD-Select β€œUse as internal memory” when you first connect.
  • πŸ”„ Reboot the phone.
  • πŸ“² Now applications will be installed on the map automatically.

The downside of this method is that the map can't be retrieved without losing data, but the internal memory will be offloaded, and the system will work faster.

8 Disable unnecessary MIUI functions and services

MIUI contains a variety of background services that are constantly consuming resources, from analytics to advertising modules, and disabling some of them will speed up the work of the Redmi Note 6 Pro and save battery life.

What can be safely disabled:

  • πŸ“Š Miui Analytics (Gathering Statistics) – Settings β†’ Confidentiality β†’ Special permits β†’ Analytics.
  • 🎡 Mi Music and Mi Video – if you don’t use standard players.
  • πŸ“‘ Automatic Wi-Fi – Automatic Wi-Fi Connection to Open Networks.
  • πŸ” App Vault – left-hand menu on the home screen with weather and news widget.

To disable system applications without root rights:

  1. πŸ”§ Enable Developer Mode (see Section 2).
  2. πŸ“± Go to Settings. β†’ Annexes β†’ Application management.
  3. ❌ Select an unnecessary app (e.g. Mi Browser) β†’ "Shut down".

⚠️ Note: Do not disable system services called com.android.phone, com.qualcomm.* or miui.telephony, which will result in network loss or other critical errors.

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Disabling even 3-4 unnecessary services can free up to 200-300 MB of RAM and reduce processor heat.

FAQ: Frequent questions about Redmi Note 6 Pro acceleration

❓ Why my Redmi Note 6 Pro started to warm up and brake after the update MIUI?
This is a typical problem when switching to new firmware versions: πŸ”₯ New MIUI It may not be optimized for the Snapdragon 636. πŸ—‘οΈ After the update, there is an old cache that conflicts with the new system. πŸ“± Background processes (e.g. MiuiOptimization) may not work properly.Solution: Make a cache reset via TWRP (If you have one, or do a hard reset. Also check the battery settings - sometimes MIUI Limits productivity to save energy.
❓ Can you overclock the Snapdragon 636 processor to speed up?
Technically, yes, but it's highly discouraged. The Snapdragon 636 in the Redmi Note 6 Pro is already running at its limit (frequency up to 1.8 GHz: ⚑ Increased energy consumption and overheating. πŸ”₯ The risk of "trottling" (automatic frequency reduction due to overheating). ⚠️ It is better to optimize existing settings or install a custom core with improved frequency management (for example, FrancoKernel).
❓ How to check which application loads the processor?
Use the built-in monitor MIUI third-party: πŸ“Š Built-in tool: Settings β†’ Battery β†’ Battery usage: This shows the applications that consume the most power (usually they load the processor). πŸ› οΈ Third-party annexes: CPU Monitor or DevCheck (shows real-time kernel loading) If an application is constantly using the kernels >30% CPU β€” Remove or limit its background activity.
❓ Will replacing the heat paste speed up the phone?
Indirectly, yes. Over time, the heat paste between the processor and the radiator dries up, leading to overheating and trottling. If your Redmi Note 6 Pro heats up above 50Β°C for simple tasks, replacing the heat paste can help. But: it's a physical intervention that requires disassembling the phone. If you're not sure about your skills, you better contact the service. Also check if the air vents are clogged with dust (they are next to the speaker).
❓ Should I install Android? 12/13 on the Redmi Note 6 Pro?
It depends on the firmware. Xiaomi has not officially released Android 12 for this model, but there are custom builds (for example, Pixel Experience 12: βœ… More modern interface and features (e.g. improved privacy). βœ… Optimization for weak devices (some firmware removed unnecessary services: ❌ Possible bugs with camera or sensors. ❌ New versions of Android require more resources. Conclusion: If you want stability, stay on the phone. MIUI 12.5 If you want to experiment, try custom firmware, but be prepared for bugs.