How to overclock Xiaomi Redmi 6A: 7 proven ways to speed up your smartphone in 2026

The Xiaomi Redmi 6A, released in 2018, is still a popular budget smartphone due to its reliability and maintainability. However, over the years, even this “unkillable” device begins to slow down: applications load for a long time, animations twitch, and games are observed friezes, the reason for this is the weak MediaTek Helio A22 processor (4 Cortex-A53 cores at 2.0 GHz), just 2 GB of RAM and outdated firmware based on Android 8.1 Oreo.

But don't be too quick to write it off! With the right approach, you can bring the Redmi 6A back to life by 30 to 50 percent faster in your day-to-day tasks (based on user tests on the 4PDA and MIUI forums). This article is about only working methods, from software optimization to hardware tweaks, with the limitations of a budget chipset and the risks of bricks. No myths about "magic overclocking apps" are just technically sound solutions.

1.Diagnosis: Why is your Redmi 6A slowing down

Before you start accelerating, you need to identify bottlenecks.

• 📱 Overloaded memory: Redmi 6A has 16/32 GB of internal memory, from which the system takes ~10 GB. There's not much room for cache and apps.
• 🧹 Garbage in the system: temporary files, remnants of remote applications, duplicate photos in the gallery.
• 🔄 Older Firmware: The latest official version MIUI 12 for Redmi 6A It was released in 2021 and is no longer optimized for modern applications.
• 🔥 Overheating: worn-out thermal paste or dust in the case causes the processor to trottl (reset frequencies).

To pinpoint the problem, install the AIDA64 app (free version) and check:

1. RAM employment in the section System → Memory (if free less than 300 MB – optimization is necessary).
2. The temperature of the processor in the Sensors (normal to 45 ° C in simple, above 60 ° C - critical overheating).
3. Read/write Memory Speed in Storage → Memory Test (norm for eMMC 5.1: ~200 MB/s per read).

⚠️ Note: If the processor temperature exceeds 70°C when loading (for example, in games), first solve the problem with cooling – overclocking will only aggravate trottling.

2. Software optimization: cleaning and configuring MIUI

Start with the safest thing to do, clean the system and disable unnecessary functions, a method that doesn't require root rights and is suitable even for beginners.

Clearance of garbage and cache

Use the built-in MIUI tools:

1. Go to Settings → Storage and click Clear (deletes temporary files).
2. In the same section, select Apps → sort by size → clear the cache for the heaviest apps (e.g. Facebook, Telegram).
3. Install SD Maid (from Google Play) to clean up the remnants of remote programs.

Disabling background and animations

Reducing visual effects will unload the processor:

• 🎨 Turn off animation: go to Settings → The phone. → 5 times tap the version MIUI, To activate Developer Mode. Then to Settings. → Additionally. → For developers, install:
• 🚫 Turn off auto-start applications: Settings → Annexes → Auto-start → Deactivate unnecessary programs.
• 📵 Limit background activity: in the settings of each application (for example, VKontakte) turn off Background activity and Auto Update.

Clear the cache in Settings → Storage |

Turn off animations in developer mode |

Remove unused applications|

Limit background activity of social networks |

Check the temperature in AIDA64-->

Update of firmware

The latest stable firmware for the Redmi 6A is MIUI 12.5.8 (Android 8.1).

1. Go to Settings → About the phone → System update.
2. If there are no updates, download the full package from the official Xiaomi website (choose Global or Russia region).
3. Install through Settings → Update → Three-point → Select a firmware file.

⚠️ Note: Do not install firmware for other models (e.g. Redmi 6 or Redmi). 7A) — Check the file name: it must contain cactus. 6A).

Once a month |

Only with critical bugs |

Never.|

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3. Overclocking through the engineering menu (no root)

The MediaTek Helio A22 in Redmi 6A supports CPU frequency change via the engineering menu, but with limitations: maximum overclocking will be only ~10% (from 2.0 to 2.2 GHz), since the chipset is not physically designed for higher frequencies, but the method does not require root rights.

Instructions:

1. Install the MTK Engineering Mode app from Google Play.
2. Open it and go to the Hardware Testing → CPU section.
3. In the CPU Frequency field, select the maximum value (usually 2208 MHz).
4. Press Set and restart the phone.

Check the CPU-Z, if the frequency changes, the overclocking goes well.

• ⚡ Energy consumption will increase (the battery will go down 15-20% faster).
• 🔥 Risk of overheating – watch the temperature in the AIDA64.
• 🔄 After restarting, the settings may reset (you will have to repeat the procedure).

💡

If the phone overheats after overclocking, return the standard frequencies and clean the case of dust (see section 5).

4. Installation of custom firmware (for advanced)

The most effective way to speed up Redmi 6A is to switch to custom firmware, like LineageOS or Pixel Experience.

• 🆕 Android 10/11 instead of the old Oreo.
• 🚀 No extra software from Xiaomi (without any software) MIUI Bloatware).
• 🔧 Possibility of fine tuning of the kernel (for example, CPU Governor).

However, the process requires unlocking the bootloader and installing the TWRP, which cancels the warranty (if it is still valid) and carries risks.

Unlocking of the loader

1. Link your Mi Account to your phone in Settings → Xiaomi Account.
2. Go to the Mi Unlock website and download the Mi Unlock Tool.
3. Launch your phone in Fastboot mode (clip Power + Volume down), connect to your PC and follow the instructions in the utility.

Installation of TWRP and custom firmware

1. Download TWRP for Redmi 6A (Look for the cactus version) from the official website.
2. Fastboot: fastboot flash recovery twrp.img fastboot boot twrp.img
3. In TWRP, make a backup (Backup section), then sew custom firmware (e.g. Pixel Experience for Redmi 6A).

⚠️ Note: Some custom firmware does not support VoLTE (calls on the Internet) 4G) on the Redmi 6A. Before installing, check the reviews on the forum 4PDA.

5. Hardware tweaks: cooling and memory

If software methods didn't help, look for the "iron." Redmi 6A often brakes due to overheating or memory shortages.

Replacement of thermopaste

Over time, the factory thermopaste dries out, leading to trottling.

1. Take the phone apart (you need a plastic mediator and a cross screwdriver).
2. Clean the old paste with the processor alcohol.
3. Apply a new thermopaste (such as Arctic MX-4) with a thin layer.

After replacement, the temperature in the idle should drop by 5-10 ° C.

Installation of microSD as internal memory

If your phone is short of space, use a microSD (up to 256GB) as an extension of internal memory.

1. Insert a memory card (SanDisk A1 or Samsung EVO is recommended).
2. Go to Settings → Storage → SD Card → Settings → Internal Memory.
3. Follow the instructions (the map will be formatted!).

⚠️ Important: Memory cards are slower than the built-in eMMC, so don’t transfer frequently used applications (e.g. instant messengers) to it).

6.Alternative methods: kernel and GPU

For experienced users willing to risk stability:

Change the governor's core

The governor (governor) controls the processor frequency. By default, Redmi 6A uses ondemand, but you can try performance (maximum performance) or interactive (balance).

For this:

1. Get root rights (for example, through Magisk).
2. Install Kernel Adiutor from Google Play.
3. In the CPU section, select Governor Performance and apply.

Overclocking the GPU (caution!)

The PowerVR GE8320 graphics accelerator in the Helio A22 can be overclocked by 10 to 15 percent, but it will greatly reduce the life of the chip.

1. Install the GPU Turbo (module for Magisk).
2. In the module settings, increase the frequency of the GPU to 650 MHz (standard - 550 MHz).
3. Check the stability in 3DMark or PUBG Mobile.

⚠️ Attention: Acceleration GPU on the Redmi 6A This often leads to artifacts in games (strips, flickers) or sudden reboots. If you notice these symptoms, return the standard settings immediately!

Testing of results

After optimizing, check the performance:

• 📊 AnTuTu Benchmark: Total Score to grow by 10-20% ~50,000 ~60,000 points).
• 🎮 GameBench: Check it out FPS In games (for example, in Call of Duty Mobile, there must be a stable 30). FPS low-set).
• 🔋 AccuBattery: Keep track of battery discharge – if it has accelerated by more than 25%, cancel overclocking.

If the results are unsatisfactory, go back to the standard settings and try a different method.

💡

The safest way to speed up Redmi 6A — clean-up + Overclocking through the engineering menu gives a minimum increase, but increases the load on the battery.

FAQ: Frequent questions