Second space on Xiaomi Redmi 9: detailed guide to dual profile function

If you own a Xiaomi Redmi 9 and you notice the mysterious “Second Space” item in your settings, you’re probably wondering what it is and why it’s needed? This option, available on many Xiaomi smartphones with MIUI firmware, allows you to create an isolated profile inside the same device — as if you have two phones in one. But how exactly does it work on Redmi 9, what opportunities do you have and are there pitfalls?

In this article, we’ll go into detail about what the second space on Redmi 9 is, how it differs from the main profile, how to set it up and when it might come in handy, and you’ll also learn about limitations, data security, and answers to frequent user questions, and if you haven’t already used this feature, you’ll be able to decide if you should activate it after reading it.

What is the second space on Xiaomi Redmi 9

The second space (or Second Space in the original MIUI terminology) is an isolated environment inside your smartphone that runs parallel to the main profile.

• 📱 Applications (different sets may be installed)
• 📁 Files and media (photos, videos, documents do not overlap)
• 🔑 Settings (wallpaper, sounds, accounts)
• 🔒 Application data (messages, call history, cache)

Xiaomi has developed the feature for those who want to share their personal and work lives on one device without having to buy a second phone, for example, you can use the main space for personal purposes, and the second for work, study or even for testing applications without risking basic data.

It's important to understand that the second space is not a separate Xiaomi account, but it's tied to the same account MI, but the data inside it is completely isolated, which means that even if you log into the same app (like WhatsApp) in both spaces, the chat history and settings will be different.

How the Second Space Works: Technical Details

Technically, the second space on Redmi 9 is a virtual container that uses the same hardware resources, but with a separate layer of data.

One of the key benefits is space saving: the second space doesn't duplicate MIUI system files, but uses them in conjunction with the main profile, which means that on the Redmi 9 with 64 GB of storage, you can allocate a second space, for example, 10-15 GB without critically reducing the free space.

There are limitations, however, such as some system applications (like Settings or Phone) that are shared between the two spaces, but their data is not, and the second space does not support separate SIM- cards: you can’t link another SIM to it, but you can hide notifications from the main profile.

Step-by-step: how to create a second space on Redmi 9

You can activate the second space on Xiaomi Redmi 9 directly in the MIUI settings. Here are the detailed instructions:

1. Open the settings on your smartphone.
2. Go to Special Features (or additionally, depending on the version of MIUI).
3. Select the second space item.
4. Click Create a second space and confirm the action.
5. Set a PIN- code or password to enter the second space (remember it!).
6. Select the amount of memory you want to allocate for the second space (at least 5-10 GB is recommended).
7. Wait until the process is completed (may take a few minutes).
8. After the reboot, you will be able to switch between spaces via the notification bar or screen lock.

Backup of important data

Remember PIN- code for the main space

Free up at least 5 GB of free space

Connect the charger (the process may take time)-->

Once you create the second space, you’ll need to configure it from scratch: add accounts, install apps, and migrate files. Note that apps from the main space aren’t automatically copied — they need to be reinstalled through Google Play or MIUI App Store.

⚠️ Warning: If you forget the PIN- code from the second space, you can only reset it through a full reset of your smartphone settings. Xiaomi does not provide official ways to restore access without losing data.

How to Switch Between Spaces and Manage Them

Switching between the main and second space on Redmi 9 takes only a few seconds, and you can do this in three ways:

• 🔄 Through the notification bar: swipe down the screen and click on the user icon (if it appears).
• 🔒 Through the lock screen: swipe up on the locked screen and select the desired space.
• ⚙️ Through Settings: Settings → Special Features → Second Space → Switch.

You can manage the second space from the settings menu, and the following options are available here:

• 📊 Change the amount of memory (you can increase or decrease the allocated space).
• 🔐 Change your password (PIN, pattern lock, or text password).
• 🗑️ Delete the second space (all data will be erased without recovery!)
• 🔄 Synchronize notifications (you can turn on or off the display of notifications from the second space in general).

If you want to hide notifications from the second space in your main profile, go to Settings → Notifications → Second Space and turn off the “Show Notifications” option. This is useful if you’re using the second space for sensitive tasks and don’t want messages from there to distract you in the main mode.

💡

To quickly distinguish spaces, set different wallpapers on the lock screen for each of them, which will help to avoid confusion when switching.

Second Space Security: How Secure Data Issues

One of the main questions users are asking is: can the second space be considered 100% secure? Xiaomi claims that the data in it is completely isolated, but let’s see if this is true in practice.

Safety benefits:

• 🔐 Application data (messages, call history, files) do not overlap between spaces.
• 🛡️ A separate PIN/ password is required to log in (a pattern lock can be set).
• 📱 No access to files in another space via a Explorer or file manager.
• 🔄 Applications cannot "see" each other (e.g. Telegram in the main space is unaware of Telegram in the second space).

Potential risks:

• 🕵️ If a smartphone is stolen, an attacker can try to find a password to the second space (especially if it is simple).
• 📡 Some system services (e.g., Mi Cloud) can sync data from both spaces if you use the same Xiaomi account.
• 🔧 A technically savvy person with physical access to a phone may attempt to bypass isolation via ADB or custom recovery.

For maximum safety, it is recommended:

1. Set a complex password (at least 8 characters with numbers and letters).
2. Disable synchronization of sensitive data (such as messages) with Mi Cloud.
3. Do not use the same Google account in both spaces if you want complete isolation.
4. Update MIUI regularly to address potential vulnerabilities.

⚠️ Warning: The second space is not a full-fledged malware sandbox. If you install a virus in one of the spaces, it can affect the system as a whole (e.g. slow down your smartphone or show ads).

When to use the second space and when not

The second space on Redmi 9 is a useful tool, but it's not for all scenarios, so let's look at where it should be activated and when it should be avoided.

When the second space is useful:

• 💼 Separation of work and personal life: for example, in the main space - social networks and entertainment, in the second - corporate mail and work chats.
• 🔍 Application testing: You can install beta programs or questionable software without risking the underlying data.
• 👨‍👩‍👧‍👦 Family use: Give a child or relative access to a second space with disabilities.
• 🔒 Privacy: Hide personal data from those who occasionally pick up your phone (such as colleagues or friends).

When is best not to use:

• 📱 If you have little free memory (less than 10 GB): the second space will take up extra space.
• 🔋 If you notice performance issues: On weak smartphones, the parallel operation of two spaces can cause lags.
• 🔄 If you update your firmware frequently: Sometimes, after updates MIUI, the second space may not work well.
• 📡 If you want full SIM- card isolation: The second space does not support individual SIMs.

Also, some applications (such as banking or two-factor authentication) may block the sign-in if they notice that you are using them in a “non-standard” environment, in which case it is better to abandon the second space or clarify the rules with the support of the service.

💡

The second space is not a replacement for a full-fledged second phone, but a great way to share data on one device without buying additional hardware.

Frequent problems and their solutions

When using the second space on Redmi 9, users sometimes encounter difficulties, and here are the most common problems and ways to solve them:

If you encounter an error that is not in the table, try the following generic steps:

1. Reboot your smartphone.
2. Check for MIUI updates in Settings → About Phone → System Update.
3. Clear the second space cache in the storage settings.
4. If the problem persists, remove the second space and recreate it.

If none of these methods worked, it may be that the problem is related to a specific version of MIUI on your Redmi 9, so you should contact Xiaomi for support or search for a solution on forums (e.g., 4PDA or Xiaomi Community).

FAQ: Answers to Frequent Questions About Redmi 9's Second Space