How to increase RAM on Xiaomi Redmi 9: all working methods

Owners of Xiaomi Redmi 9 often face the problem of a lack of RAM, especially when multitasking or running demanding applications. The smartphone in the basic configuration is equipped with only 3-4 GB of RAM, which by modern standards may seem insufficient. But before you run to the service center or buy a new gadget, it is worthwhile to figure out whether you can increase RAM on this device, and if so, how to do it correctly.

It’s important to understand that physical expansion of RAM on smartphones is not a trivial task. Unlike a PC where you can simply add a memory bar, Redmi 9 modules are soldered into the motherboard. However, there are both software solutions (virtual RAM, system optimization) and hardware (replacing the memory chip in the service). In this article, we will discuss all the current ways to increase RAM on the Xiaomi Redmi 9 in 2026, including their pros, cons and potential risks.

Spoiler: Not all methods are equally effective. For example, the popular trick of "expanding RAM through internal memory" through MIUI settings doesn't work as well as bloggers promise, but intelligent optimization of application backgrounds or even hardware intervention can give real performance gains. Let's get this straight.

1. Virtual RAM: How to turn it on and whether to do it

The most common way to “boost RAM” on Redmi 9 is to activate the virtual RAM (RAM Expansion) function in the MIUI settings, which uses some of the smartphone’s internal memory as an additional buffer for temporary data, which sounds tempting, but in practice, the effect is often minimal.

To enable virtual RAM:

• 📱 Open the Settings. → The phone. → All characteristics.
• 🔧 Tap 7-10 times on the item Version MIUI, The message is, “You’ve become a developer".
• 🔄 Return to the main settings menu and go to Additional → For developers → Virtual RAM.
• 📈 Select volume (usually offered 1, 2 or 3 GB) and restart the device.

What to pay attention to:

• ⚠️ Virtual RAM It does not replace physical applications, it only helps the system to switch between applications faster, but does not speed up their work.
• 📉 Part of the internal memory (UFS 2.1 in Redmi 9) will be constantly busy, which may slow down the recording of files.
• 🔋 The function slightly increases battery consumption due to additional read/write operations.

⚠️ Attention: On some firmware MIUI item “Virtual” RAM" It may not be there. It means that your version of the software doesn't support the function at the hardware level. Don't try to activate it through an engineering menu or third-party utilities, it can cause malfunctions.

System Optimization: How to Free RAM Without Root

Before you think about increasing memory, you should make the most of what you have, and MIUI has built-in tools to clean up RAM, and third-party apps that help you manage background processes, and here's what you can do without superuser rights:

MIUI built-in facilities:

• 🧹 Use Security → Cleaning to remove cache and unnecessary processes. MIUI It has a separate partition to optimize memory.
• ⚡ Turn on the settings. → Battery → Performance mode (but remember that this will increase charge consumption).
• 📵 Limit the background activity of applications in Settings → Annexes → Permits → Auto-start.

Third-party utilities:

• 🛠️ Greenify – allows you to freeze unwanted applications without removing them.
• 📊 Developer Options Tool – gives quick access to hidden optimization settings.
• 🚀 Game Turbo (built-in to the game) MIUI) — Automatically clears memory when starting games.

Importantly, many Google Play "optimizers" are actually just creating the illusion of speeding up, killing everything in a row, which can slow down your smartphone, as the system will have to re-download data the next time you run the app. Use only proven high-ranking utilities.

3. Root rights and modifications: risks and opportunities

If you're willing to take drastic measures, getting root rights will give you access to deep customization.

• 🔧 Change the kernel settings for more aggressive memory management.
• 🗑️ Remove system applications MIUI, squirrels.
• 📥 Use Magisk modules for fine optimization (e.g, LMK Tweaks for Low Memory Killer).

But there are also serious disadvantages:

• ⚠️ Loss of warranty (if it is still valid).
• 🔐 Security risk (some banking apps refuse to work on rooted devices).
• 💥 The probability of “bricking” the smartphone with incorrect actions.

If you do, here are the basic steps:

1. Unlock the bootloader through the Mi Unlock Tool (requires an account binding Mi).
2. Install custom recovery (TWRP or OrangeFox).
3. Sweep through Magisk to get root.
4. Use Titanium Backup or SD Maid to clean your system.

⚠️ Note: Redmi 9 with MediaTek Helio processor G80 Some Magisk modules may not work well. Check compatibility on forums before installing. XDA Developers or 4PDA.

4 Hardware expansion of RAM: is it real?

Technically, you can replace or add RAM on the Redmi 9, but it is extremely difficult and expensive. Unlike flagships (for example, Xiaomi 12 Pro, where RAM and storage are separated), in budget models, LPDDR4X memory chips are soldered into the motherboard along with the processor (SoC).

• 🔧 Requires the soldering of chips using professional equipment (BGA-station).
• 💰 The cost of work can exceed the price of the smartphone.
• ⚡ The risk of damage to the fee or other components is very high.

Here are the approximate prices for services in service centers (for 2026):

Before agreeing to this procedure, consider:

• 🔍 Find a service with good reviews and a portfolio of similar works (ask examples on Redmi 9 or Redmi Note 9, they have a similar platform).
• 📄 Demand a check and a written guarantee – verbal promises are not valid.
• 🔄 After replacing the RAM may require reflashing the device.

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Before contacting the service, make a full backup of data through Settings → Additional → Backup or using Mi PC Suite. After hardware intervention, there is a high risk of loss of information.

5. Alternative solutions: when increasing RAM is not necessary

Sometimes the problem isn't the amount of memory, but the inefficient use of memory. Before you spend time and money expanding RAM, check these points:

Firmware problems:

• 🐌 An outdated version MIUI It may contain memory management errors. Update to the latest stable firmware via Settings → Updating the system.
• 🔄 If the smartphone "lays" after the update, try resetting to factory settings (Settings) → Additionally. → Reset).

Hardware malfunctions:

• 🔋 A worn-out battery (capacity below 70%) can cause performance drawdowns. Check battery status via AccuBattery.
• 🔥 Overheating of the processor due to clogged radiator or heat paste, in which case cleaning in the service will help.

Non-optimal settings:

• 🎮 In games, set the graphical settings to Balanced or Performance instead of High".
• 📱 Turn off interface animation in Settings → For developers → Scale of animation (off.).

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If after all the optimizations the smartphone still slows down, perhaps the problem is not the RAM, but the processor Helio G80, which simply does not cope with modern tasks, in this case, it is more logical to consider buying a new device.

6 Myths about increasing RAM: what not to do

You can find a lot of RAM "advice" on the Internet that is actually either useless or harmful.

❌ "You can turn internal memory into RAM through an engineering menu"

Some gurus suggest typing commands like RAM Expansion Enable into the engineering menu (#3646633##) that either doesn't work or activates the virtual RAM we talked about earlier. There's no magic ROM → RAM conversion.

❌ "Applications of type 'RAM Booster's really boosts memory"

All of these accelerators do one thing: they kill background processes on a schedule, which may temporarily free up memory, but in the long run it will only slow down the smartphone, as Android will have to constantly reboot data.

❌ "The firmware of the custom core will add RAM"

Castom cores (such as FrancoKernel or ElementalX) can improve memory management, but they cannot physically increase memory capacity. Moreover, not all cores are compatible with the MediaTek Helio G80, and their installation is fraught with failure.

❌ "You can buy an external RAM through USB-C"

There are some devices marketed as external RAM (such as the Samsung Portable SSD T7 with RAM-disk), but they won’t work on the Redmi 9 due to Android limitations and the lack of support for USB 3.1 at the hardware level.

⚠️ Some "masters" suggest "swifting extra memory" through SP Flash Tool. It's a fraud! It's either a failure or a complete failure of the smartphone. RAM is a hardware component, you can't flash it".

FAQ: Frequent questions about RAM on Xiaomi Redmi 9