Setup mobile Internet on Xiaomi: from APN to select 4G/5G network

Why is mobile internet on Xiaomi not working?

You just put it in. SIM-The new Xiaomi Redmi Note 13 or POCO X6 Pro, but the Internet stubbornly refuses to connect? MIUI missing 4G, This problem is familiar to many owners of Xiaomi smartphones — and the reasons can be very different: from the banal incorrect settings. APN before the operator's hardware limitations.

Unlike the iPhone, where network settings are often applied automatically, Android (and especially firmware) MIUI Xiaomi requires manual intervention in 30-40% For example, if you're traveling and using a local SIM-your card, or your operator has recently updated access parameters. 3G on 5G It may require reconfiguration, especially on budget models like the Redmi. 12C, Support for new networks is implemented programmatically.

In this article, we will discuss all possible ways to set up mobile Internet on Xiaomi, from basic checks to hidden options of the engineering menu.

• 🔍 Check if your model supports the desired frequencies 4G/5G
• 📡 Manually add or update an access point APN
• 🔄 Switch between network modes (2G/3G/4G/5G)
• 🛠️ Resolve the “No Internet Access” or “Emergency Calls Only” errors"
• 📶 Enhance the signal with the help of the engineering menu (for advanced users)

Step 1: Check the basic conditions before setting up

Before you go into the settings, make sure that the problem is not on the surface, and experience shows that in 60% of cases, mobile Internet does not work due to trivial reasons:

• 📶 No network coverage, check the signal indicator in the status bar. If you see a cross or exclamation mark instead of strips, the problem is on the operator's side.
• 💳 SIM-card is inactive – new cards require activation (a call to a short number or a short card). SMS). The old ones might have expired.
• 📱 Flight mode is enabled - swipe down from the top edge of the screen and check the icon of the aircraft.
• 🔋 Savings in traffic - in MIUI There is a function of limiting mobile data (Settings) → SIM-maps and mobile networks → Saving traffic).

If everything is fine but the internet is still down, move on to the next step, and pay special attention to hybrid slot models (such as the Xiaomi 13T), where the second SIM can be turned off when using a memory card.

Step 2: Set up an APN access point

APN (Access Point Name) is the "address" your smartphone connects to the carrier's Internet. If it's not configured correctly, you'll see a "No Internet" message or an E (Edge) icon instead of 4G/5G. In 90% of cases, it's enough to download the settings automatically, but sometimes you have to enter them manually.

How to add APN to Xiaomi:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-card (if there are several).
3. Slip on the Access Point (APN).
4. In the upper right corner, click on three dots and select a New Access Point.
5. Fill in the fields according to your operator’s data (see the table below).
6. Save the settings and restart the smartphone.

If the Internet does not work after saving the APN, check:

• 🔘 Selected profile (should be ticked next to the name).
• 📝 Are there any typos in the title? APN (register!).
• 🔄 Try switching to another authentication protocol (PAP/CHAP).

⚠️ Note: On some Xiaomi models (e.g, POCO F5) post-refresh MIUI reset APN. If the Internet is missing after the update, check this parameter first.

Step 3: Selecting Network Mode (2G/3G/4G/5G)

Xiaomi lets you manually prioritize networks – this is useful if your region has a weak 4G signal but stable 3G. Or vice versa: you want to force 5G on a supported model (e.g. Xiaomi 14 or Redmi K70).

How to change the network mode:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map.
3. Tap by Network Type (or Preferred Network Type).
4. Choose the right option: 📶 Only 2G — Minimal power consumption but very slow internet. 📶 3G — balance between speed and coverage. 📶 4G (recommended) – the best choice for most users. 📶 5G — Available only on flagships (e.g. Xiaomi) 13 Ultra or Mix Fold 3). 📶 Auto – the smartphone will choose the best signal (can switch between the two) 2G/3G/4G).

If the Internet is gone after the change of mode, go back to the Auto and check the APN settings - they could have reset.

⚠️ Note: On budget models (e.g. Redmi) A2 or POCO M6) forced choice 5G This can cause a complete loss of communication if the smartphone does not support this standard.

Step 4: Checking frequency and operator compatibility

Even if your Xiaomi supports 4G or 5G, it doesn’t guarantee stable work with any carrier, because each provider uses its own frequency bands, and if the smartphone does not support them, the connection will be unstable or even absent.

For example, Redmi Note 12 Pro+ works with 5G bands n1/n3/n5/n8/n28/n41/n77/n78, and MegaFon in Moscow uses n78 (3500 MHz) for 5G. If your operator is operating at a different frequency, the speed may be lower than expected.

How to check compatibility:

1. Find out the supported frequencies of your model on the Kimovil or GSMArena website.
2. Compare them with the frequencies of your operator (information is available on the official websites of MTS, Beeline, etc.).
3. If there are inconsistencies, try manually setting priority ranges through the engineering menu (see the next section).

💡

If you travel frequently, bookmark the FrequencyCheck page to check your smartphone’s compatibility with carriers in different countries.

Step 5: Reset network settings and hidden settings

If none of the previous methods worked, try resetting the network to factory settings, which will remove all stored APN hotspots, Wi-Fi passwords and associated Bluetooth devices, but often solves mobile Internet problems.

How to reset your network settings on Xiaomi:

1. Open the Settings. → SIM-maps and mobile networks.
2. Slip on the three dots in the top right corner and select Network Settings Reset.
3. Confirm the action (you will need to enter a pattern lock or PIN-code).
4. After restarting, reset the APN (see Step 2).

If the reset didn't work, try changing the settings in the engineering menu, which is suitable for advanced users and can improve signaling in areas with poor coverage.

How to open the engineering menu:

1. Open the Phone app.
2. Enter the code ##4636##.
3. Select Phone Information (or Phone Information).
4. Scroll down to the Set preferred network type section and select the desired mode (e.g. LTE only for forced 4G).

⚠️ Warning: Do not change other options in the engineering menu unless you know their purpose! Incorrect settings can lead to loss of communication or even overheating of the communication module.

💡

If after all the manipulations of the mobile Internet and did not work, the problem may be in the SIM-card (damaged or outdated) or in a hardware fault of the communication module.

Step 6: Diagnosing problems with SIM-map and communication module

If the settings are correct but the internet still doesn’t work, the cause may be a physical malfunction:

• 🔌 Bad contact. SIM-cards – remove the card, clean the contacts with a stripe and insert back.
• 🛠️ The slot is damaged. SIM — If the smartphone fell or got wet, the contacts could oxidize.
• 📡 The communication module is faulty – if none SIM It is not working, the modem chip may have failed.

How to check if it works SIM-map:

1. Try inserting it into another smartphone. If the Internet doesn't show up, the problem is in the map (refer to the operator for a replacement).
2. If it's different SIM-The card in your Xiaomi also does not work – a malfunction in the device.
3. Check if your smartphone’s IMEI is determined by entering *#06#. If zeros or an error are displayed instead of the number, the communication module is corrupted.

On models with duals SIM-Maps (e.g. Xiaomi 13 Lite) sometimes help to move the cards in places. Also make sure that the settings are the right one. SIM for data transmission (Settings) → SIM-maps and mobile networks → Mobile data).

Frequently Asked Questions (FAQ)