DSDS Xiaomi: What is this feature, how to turn on and configure two SIM-map

What is it? DSDS Xiaomi smartphones and why it is necessary

If you have ever had to deal with two SIM-Xiaomi cards, you probably saw the mysterious acronym DSDS It's not a typo or a translation error, it's one of the key technologies for working with multiple SIMs. DSDS like a dual SIM Dual Standby (literally, double standing) SIM, double-wait»).

Unlike the old Dual mode. SIM Single Standby (where the second one is) SIM It is switched off when an active call is made on the first), DSDS It allows both cards to stay active at the same time, which means you can do it:

• 📞 Get calls to both SIM-card-free
• 📶 Use mobile internet from one SIM while the other is waiting for calls
• 🔄 Quickly switch between operators to save on roaming

Technology DSDS It has become the standard for most modern Xiaomi smartphones, starting with models based on Qualcomm Snapdragon 600+ But even in 2026, users are having trouble setting up the phone, especially after a phone reset or upgrade. MIUI. Next, we will understand how to properly turn on DSDS, What pitfalls do the function have and how to get around them.

DSDS vs DSLV vs DSSS: What's the difference and what's better

Before you turn on DSDS, It is important to understand what other modes of work with two SIM-Xiaomi has three cards, and each has its own pros and cons:

In most Xiaomi smartphones (for example, Redmi Note 12 Pro)+, POCO X5 Pro, Xiaomi 13T) By default, it is activated exactly DSDS. However, in some regions (e.g. Europe), the manufacturer may limit functionality due to local communication standards:

1. Open the Settings. → SIM-maps and mobile networks.
2. Tap on Additional settings (or Advanced settings) SIM newer MIUI).
3. Find the item Mode of work SIM-map.

If there is no explicit mention in your menu DSDS, It doesn't mean that the function is disabled. MIUI (14+) The settings can be hidden under the option to use both SIM-map.

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If there is no "Mode of work" item in the settings SIM-maps, try inserting the second SIM-Map – sometimes the menu appears only when there are two active sims.

Step-by-step instruction: how to turn on DSDS Xiaomi

Activation. DSDS On most devices Xiaomi takes no more than a minute, but there are nuances depending on the version. MIUI And the smartphone models. Follow the instructions:

Method 1: Using standard MIUI settings

1. Go to Settings. → SIM-maps and mobile networks.
2. Select additional settings (in) MIUI 14+ It might be called Settings. SIM-map).
3. Put it on the work schedule. SIM-map.
4. Choose. DSDS (Dual SIM Dual Standby) or Use both SIM-map.
5. Confirm the change and restart the phone.

Method 2: Engineering menu (if you have a DSDS concealed)

On some models (e.g. Redmi) 10C or POCO M4 Pro) option DSDS It could be hidden, to unlock it:

1. Open the Phone app and type ##4636##.
2. Go to the tab Information about the phone.
3. Scroll down to Set preferred network type.
4. Choose for each SIM-map LTE/UMTS auto (PRL).
5. Get back to the basic settings SIM-map DSDS should appear.

After activation. DSDS Your smartphone can automatically reboot. If it doesn't, reset manually, or the settings may not apply.

Common problems with DSDS And how to solve them.

Even after successful inclusion DSDS Xiaomi users face a number of common problems, and here are the most common ones and how to fix them:

Problem 1: Second problem SIM-map doesn't catch the net

If one of them SIM-The cards are no longer defined or show no network, try:

• 🔄 Reboot your phone (in 60% of cases, this solves the problem).
• 📱 Remove and re-insert SIM-slot-card.
• 🛠️ Reset the settings APN: Settings → SIM-map → Access point (APN) → Reset.
• 📡 Manually select the operator: Settings → Mobile network → Choice of network → Manual scanning.

Problem 2: Quick battery discharge after switching on DSDS

DSDS It increases energy consumption because both SIM-They're constantly scanning the networks to keep the cost down:

• 🔋 Turn off background data transfer for unnecessary applications: Settings → Annexes → Permits → Auto-start.
• 📴 Activate the Battery Saving mode in the Power Settings.
• 🌐 If one of them SIM-The card is used only for calls, limit her access to mobile Internet.

Problem 3: Calls fail or fail

If you are actively calling on one SIM The second one stops working (or vice versa), it may be due to the:

• 📵 Operator frequency conflict (e.g. if both use Band 3) Solution: change SIM-map.
• 📞 No VoLTE support on one of the sims. Check in settings: Settings → SIM-map → VoLTE challenge.
• 📡 Bad signal. Try to turn it off. 4G one-way SIM-I left only the cards. 3G.

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If there's a problem with DSDS appeared after the update MIUI, Try to roll back on the previous version of the firmware or wait for a patch from Xiaomi.

DSDS VoLTE: Why it’s important to include both functions

Many users don’t understand why even after they’ve turned on DSDS The thing is, the quality of the calls is that the two of them are working. SIM-In modern networks, you also need to activate VoLTE (Voice over) LTE). Without this technology:

• 📞 The calls will switch to 3G, which impairs the quality of communication.
• 📱 Mobile Internet will not work at the same time as the conversation.
• 🔄 Switching between SIM-Cards can take up to 5 seconds.

To enable VoLTE on Xiaomi:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose the right one. SIM-map.
3. Activate VoLTE Call and Wi-Fi Call switches.
4. Repeat for the second. SIM-map.

Not all operators support VoLTE on both SIM-For example, in Russia, MTS and Beeline allow VoLTE to be used only on one SIM, and the second will work in the mode. 3G. Please check this information with your provider.

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If VoLTE is not enabled, check if your model supports this feature. 9A VoLTE only works on slot 1.

DSDS Different Xiaomi models: features and limitations

Despite the fact that DSDS Available on most Xiaomi smartphones, implementations may vary depending on model and region:

On budget models (e.g. Redmi) A2+ or POCO C50) DSDS It can work with limitations:

• 📶 Both SIM-The cards will only work in 3G-if one of them is active.
• 📞 One at a time. SIM The second one is temporarily shut down (in fact, it is a DSSS, not DSDS).
• 🔄 Switching between networks takes up to 10 seconds.

If you are planning to use two of them actively SIM-cards, when buying a Xiaomi smartphone, specify support for a full-fledged DSDS For example, in the line of Redmi Note, this feature is more stable than in the budget Redmi A.

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On flagships (for example, Xiaomi 14) DSDS supports the combination 5G + 4G, On budget models, the maximum configuration is — 4G + 3G.

How to turn off DSDS and back to one SIM

If you choose to use only one SIM-map DSDS cause too many problems (for example, fast battery discharge), you can turn off the mode in a few steps:

1. Go to Settings. → SIM-maps and mobile networks.
2. Select Additional Settings.
3. Put it on the work schedule. SIM-map.
4. Choose Use One to Use One SIM-map DSSS (if available).
5. Confirm the change and restart the phone.

After the blackout DSDS:

• 📵 Second second SIM-The card will be deactivated (it can be removed).
• 📱 Increased battery life (by 10-15%).
• 📶 Mobile Internet will work more stable (no conflicts between networks).

On some models (e.g. Xiaomi) 11T) post-off DSDS may reset priority SIM-Call card and Internet. Check the settings after the reboot.

FAQ: Frequent questions about DSDS Xiaomi