Mobile Internet on Xiaomi 10S: how to enable, configure and troubleshoot

Xiaomi Smartphone 10S — powerful device with support for modern networks 4G LTE and 5G, But sometimes people have a problem with not having mobile Internet, and the reasons can be different, from the simple disconnect of data to errors in settings. APN or trouble with SIM-This article will help you understand how to correctly enable mobile Internet on Xiaomi 10S, configure network parameters and eliminate common problems.

We will look at all possible scenarios, from basic data activation to manually configuring access points (APN) We'll focus on the nuances of working with two of these problems. SIM-with the cards, as Xiaomi 10S Supports Dual SIM, And often conflicts arise precisely because of the wrong distribution of networks between slots.

Checking basic settings: enabling data transfer

Before you go into the complicated settings, make sure that mobile Internet is even allowed on the system, and often the problem is solved with just two taps on the screen.

1. Open the notification bar (swipe down from the top edge of the screen).
2. Find the Mobile Data icon (usually marked with up-down arrows or an antenna) and if it's gray, tap it to activate it.
3. If there is no icon, expand the panel completely (another swipe down) and find it there.

If your mobile data is turned on but the internet is still not working, check:

• 📶 Network signal strength if the indicator shows 1-2 division or cross – the problem may be in the coverage area of the operator.
• 📱 Active. SIM-On Xiaomi. 10S two-way SIM-cards, but mobile Internet only works on one of them (by default — SIM1).
• 🔄 Flight mode. Sometimes it's activated by accident, check the notification panel or Settings. → SIM-maps and mobile networks.

Network signal stable (3+ divisions)

Mobile data is included in the notification panel

The right one. SIM-map

Flight mode is off.

Rebooting the phone didn’t help.

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If the Internet worked after this manipulation, the problem was the basic settings, and if it didn't, we'll move on to the next step.

Selection of SIM-card for mobile Internet

Xiaomi 10S It supports two nano-SIM cards, but mobile Internet can only work on one of them (depending on the operator's settings). SIM-data-card:

1. Go to Settings. → SIM-maps and mobile networks.
2. Slip on the item "Mobile Internet" (or "Data Transfer").
3. Choose the right one. SIM-map (SIM1 or SIM2). If the option is inactive, then the operator does not support the Internet on this option. SIM.

Important nuances:

• 🔄 If you have two. SIM-cards of one operator, the Internet can work only on one (for example, MTS or Beeline).
• 🌐 Some operators (e.g, Tele2) Automatically redirect traffic to SIM1, even if you choose SIM2.
• 📶 After the shift SIM-Internet is missing - restart the phone or turn on / off flight mode.

SIM1 (main)

SIM2 (additional)

Both in turn.

I don't know how active.

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⚠️ Note: If you are using eSIM (virtual) SIM-The card, its settings may conflict with the physical cards, in which case try to turn off eSIM in Settings. → SIM-maps and mobile networks → eSIM and check the internet on physical SIM.

Setting up APN access points

If the mobile internet is turned on, SIM-The map is correctly selected, but the pages do not load – the problem may be in the wrong settings APN (Access Point Name: This is a kind of "address" that connects the phone to the carrier's Internet. APN It is automatically set up, but sometimes manual editing is required.

To check or change the APN:

1. Go to Settings. → SIM-maps and mobile networks → [choose SIM-map] → Access points (APN).
2. If there are several profiles, choose the one that matches your operator (for example, Internet.beeline.ru for Beeline).
3. If the profile is not available or it does not work, click "Add" and enter the settings manually.

Below is a table with the current APN settings for popular Russian operators (2026):

After you enter the settings, save your profile and select it from the APN list. Then restart your phone. If the internet doesn't work, check if the firewall or VPN is blocking traffic (more on that below).

Network mode check: 4G, 5G or automatic selection

Xiaomi 10S supports 5G networks, but not all carriers provide such coverage. If the phone is constantly trying to connect to 5G, and in your region it is not available, it can cause delays or no Internet connection at all.

1. Go to Settings. → SIM-maps and mobile networks → [choose SIM-map] → Type of network.
2. Choose one of the options: Automatically (recommended) – the phone will choose the best network; 4G/3G/2G – if 5G is unstable or not in your area; 4G only – for maximum stability (but no calls on the 4G network, if the carrier does not support VoLTE); Only 5G – if you are confident in coverage (can discharge the battery faster).

If the Internet worked after the change of mode, the problem was in the suboptimal choice of the network, in which case you can lock the operating mode (for example, "4G Only") to avoid automatic switching.

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If you have a weak 4G signal, try to force 3G on. Despite the slower speed, the connection can become more stable, especially in rural areas or basements.

Also check if your 5G tariff supports. For example, MTS and Beeline only have 5G available on certain rates (e.g., "All for Yours" or "Unlimited"). If the tariff does not support 5G, the phone will constantly try to connect to it, wasting charge and time.

Diagnosing problems with SIM-map-and-operator

If all the settings are correct, but the Internet still does not work, the problem may be in the SIM-Here's how to check the map or the operator side:

• 🔄 Rebooting the phone is trivial but often helps – especially if the problem has occurred after a software update.
• 📱 Verification SIM-You can put it in another device and check if it's running the Internet, and if it's not, it's a card problem or a carrier problem.
• 🔧 Clearing the cache of telephony services. Go to Settings → Annexes → Application management → Three dots (menu) → Show system-based → Phone services, then click "Clear cache".
• 📞 Call the operator. Sometimes the Internet is blocked due to debts, expiration of the tariff or technical work. Call *111# (MTS), *105# (Beeline) or *100# (MegaFon) to check.

If SIM-The card works on a different phone, but not on Xiaomi. 10S — Maybe the problem is the slot. SIM-Try the cards:

1. Take it out carefully. SIM-The card and insert it back (make sure the contacts are clean).
2. Change it. SIM-map (SIM1 ↔ SIM2).
3. Check if the contacts in the slot are bent (the phone may not see). SIM-map).

⚠️ If the phone is no longer visible SIM-If you have a card, after a drop or moisture, the problem may be that you have damaged the antenna module, and you need to be diagnosed at the service center, and you don't try to disassemble the phone yourself, because you're not guaranteed to do that.

Additional settings: VPN, firewall and traffic saving

Sometimes mobile internet works, but websites don't open or speeds are extremely slow, and the reasons may lie in additional settings:

• 🔒 VPN. If you have it on. VPN (For example, to bypass locks, it can redirect all traffic through its servers, which causes slowdowns. VPN In Settings → Connections and sharing → VPN.
• 🛡️ Firewall or antivirus. Apps like Avast or 360 Security can block mobile traffic. Check their settings or temporarily disable them.
• 📉 Saving traffic. MIUI There's a back-end traffic restriction feature. To turn it off, go to Settings. → Connections and sharing → Save traffic and deactivate the option.
• 🔄 Traffic redirection: Some applications (like Opera Max) can redirect traffic through their proxy.

Also check if Wi-Fi Only is activated for specific applications, such as YouTube or Netflix, where you can ban mobile data.

1. Go to Settings → Applications → Application Management.
2. Select the app you want (such as Chrome).
3. Slip on Mobile Data and make sure access is allowed.

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If the internet only works in some applications (e.g. Telegram, but not in the browser), the problem is most likely with the APN settings or firewall, not the network itself.

Resetting network settings and extreme measures

If none of the previous methods worked, you'll have to reset your network settings, and that will bring all the connectivity settings (Wi-Fi, mobile data, Bluetooth) back to factory values.

1. Go to Settings → System → Resetting settings.
2. Select "Reset Wi-Fi, Mobile Network and Bluetooth settings".
3. Confirm the action (a password may be required).
4. After restarting, reset your mobile internet (select) SIM-map, check it out. APN).

If this does not help, the following problems may occur:

• 📡 Hardware malfunction (damaged communication module).
• 🔄 Software failure after update MIUI (flip-flopping).
• 📵 Lockdown IMEI (If the phone is purchased from hand and is listed on a blacklist).

In these cases, it is recommended that:

1. Update MIUI to the latest version (Settings → About Phone → System Update).
2. Contact the Xiaomi Service Center for Diagnostics.
3. Check the phone’s IMEI (type *#06#) on imei.info – if the status is “blacklisted”, the phone is blocked by the operator.

⚠️ Note: If you are buying Xiaomi 10S With hands at a suspiciously low price, there is a risk that the phone is linked to someone else's Mi Account. In this case, the mobile Internet may be blocked by the previous owner. → Xiaomi account – if there is someone else’s email, ask the seller for an interchange.

FAQ: Frequent questions about mobile Internet on Xiaomi 10S