Why Mi 10 owners choose two SIM-map
The Xiaomi Mi 10, launched in 2020, remains a hot-button device thanks to its powerful hardware and support for modern networks, including 5G. One of the key features of the model is the ability to work with two nano-SIMs simultaneously, a solution that is in demand among users who combine work and personal communication, travel with local SIMs or save on roaming.
However, setting up two SIMs on the Mi 10 has nuances, from physical card placement to software limitations of MIUI. For example, in Dual SIM mode, the device does not support 5G on both cards at the same time - only one of them can use a fifth-generation network. This article will help avoid typical mistakes from incorrect card placement to network setting conflicts.
We'll take it apart.
- 🔧 How to physically set two SIM-cards (including hybrid slots)
- ⚙️ Step-by-step adjustment in MIUI 12/13/14 screenshot
- 📶 Optimizing network priority and solving signal problems
- ⚡ Hidden functions, such as switching SIM default
Physical installation SIM-maps: slot and its features
Xiaomi Mi 10 is equipped with a hybrid tray that supports:
- 📱 Two nano-SIMs (3FF)
- 💾 Or one nano-SIM. + microSD memory card (up to 256 GB)
Important: you can't use two SIMs and a microSD at the same time. If you need both SIMs, you have to sacrifice the expansion of memory. The tray is on the top of the device, and you can use a paper clip or a special key from the kit to extract it.
When installing, follow the rules:
- Turn off your smartphone (not a reboot, but a complete shutdown!).
- Put it in. SIM-cards with metal contacts down, cut by an angle to the tray.
- The SIM 1 slot will be used by default for mobile data.
⚠️ Note: If the smartphone does not recognize one of the SIM, check: 🔹 Proper placement (contacts should fit tightly to the connectors). 🔹 No damage on the map (scrapes, chips). 🔹 Operator Compatibility (some virtual operators are not supported).
Activation of the second SIM in the MIUI settings
After physical installation, the cards must be configured in the system. The interface may vary slightly depending on the version of MIUI (12, 13 or 14), but the general logic is maintained:
Open the Settings. → SIM-Maps and mobile networks. Here you'll see both installed. SIM (marked SIM 1 and SIM 2) Slip on any of them to set up:
- 📞 Name. SIM (For example, “Worker” and “Personal” – simplifies identification.
- 🌐 Mobile Data – Choose which SIM It will be used for the Internet.
- 📞 Calls - set up SIM default for outgoing.
- 💬 SMS — choose SIM message-post.
☑️ Setup second SIM Mi 10
Pay special attention to the network type, and you can manually prioritize:
- 🔄 Auto (recommended for most users).
- 📶 Only 4G/3G/2G — if there is a problem with the signal.
- ⚡ 5G — available only for one SIM (The second one will work in 4G).
Why can’t the Mi 10 use 5G on both SIMs at the same time?
Set up network priority and solve signal problems
One of the most common problems with using two SIMs is an unstable signal or automatic switching between networks, which is because the smartphone tries to optimize its power consumption by turning off one of the modules when the signal is weak.
To avoid this:
- Make it a priority. SIM for data in Settings → SIM-map → Mobile data.
- Turn off automatic network selection: go to Settings → SIM-map → [choose SIM] → Network type and install only 4G (if 5G non-critical).
- Activate High Call Quality (VoLTE) mode for both SIMs if your carrier supports this feature.
| Problem. | Possible cause | Decision |
|---|---|---|
| No network on one SIM | Incorrect network type or damaged card | Restart your phone, check your network type settings, try a different SIM. |
| Automatic switch to 2G | Savings in battery charge | Turn off Adaptive Battery Savings in Battery Settings |
| No 5G on the second SIM | Hardware limitation of the chipset | Use 5G on one SIM, the second will be in 4G |
| SMS does not come to one of the SIMs | Conflict of message settings | Install. SIM default SMS In Settings → SIM-map |
💡
If one of the SIM signals is permanently lost, try swapping the cards (switching the SIM 1 and SIM 2) and sometimes this solves the problem with the "deaf" zones.
Hidden Dual SIM features in Mi 10
MIUI offers a few hidden dual SIM features that many users miss out on:
1. Quickly switching SIM during a call
If you have started dialing but want to use a different SIM, just tap the current SIM icon at the top of the dial screen and the selection menu will appear.
2. separate notifications for each SIM
B Settings → Notifications → SIM-You can customize the individual sounds and vibrations for calls/messages from each card. SIM working and other personal.
3. Limit mobile traffic via SIM
MIUI It allows you to set traffic limits for each SIM It's convenient if you have unlimited on one card and limited package on the other. → SIM-map → [choose SIM] → Traffic limit.
4. Linking contacts to a specific SIM
When editing a contact in Google Contacts or MIUI, you can specify which SIM to use to call that subscriber by default.
💡
The “Double Call” feature in the Mi 10 allows you to receive an incoming call to one. SIM, without interrupting the conversation to another. Activated in Settings → SIM-map → Double call (not available in all regions).
Optimizing battery consumption when using two SIMs
Two active SIM-These cards increase power consumption by 10 to 15 percent because of the constant scanning of the grids:
- 🔋 Disable Network Search for Unused SIM in roaming (if not needed).
- 📵 Use the In-Air mode for one of the SIM At night (unless you are waiting for important calls).
- ⚡ Activate Adaptive Battery Savings, but exclude applications that are critical to work (e.g. messengers).
- 🔄 Set up Auto Sync only for the necessary accounts (for example, disable mail sync on the second one). SIM).
Also worth paying attention to the background activity of applications. Some messengers (such as WhatsApp or Telegram) can constantly poll both of them. SIM, That leads to an extra expense. Check the permissions in Settings. → Annexes → Permits → SIM-map.
⚠️ Warning: If you notice that the battery is running out too fast (more than 20% per hour in standby mode), check Settings. → Battery. → Battery use, if the top of the flow rate is SIM Toolkit or Phone Services, try restarting your device or resetting your network settings.
Frequent mistakes and their solutions
Even experienced users have trouble configuring two SIMs on the Mi 10, and here are the most common scenarios and ways to fix them:
1. "No service" on one of the SIMs
Reasons:
- 🔹 SIM not activated by the operator (check in the personal account).
- 🔹 Wrong. APN (Access point. To manually set up, go to Settings → SIM-map → [choose SIM] → Access points (APN).
- 🔹 Conflict with the other SIM (For example, if both of them use the same network).
2. mobile internet on the second SIM is not working.
Decisions:
- 🔧 Make sure that mobile data is included for this purpose. SIM.
- 🔧 Check the balance and activity of the tariff (some operators block the Internet at zero balance).
- 🔧 Reset network settings: Settings → SIM-map → Resetting network settings.
3.The smartphone does not see one of the SIMs after the MIUI update
This is a known problem when switching between MIUI versions.
- 🔄 Rebooting the device.
- 🔄 Removal and re-installation SIM.
- 🔄 Resetting network settings (see above).
- 🔄 In extreme cases - reset to factory settings (don't forget to make a backup!).