Have you ever encountered a situation where mobile data is on a smartphone suddenly stops working, although the SIM card is active and there is a network signal? In 90% of such cases, the fault is the incorrect configuration of APN access points a small but critical parameter that connects your Androiddevice with the telecom operator. Without the correct APN settings, even the most expensive SIM card with an unlimited tariff will be useless: neither sites will open, nor instant messengers will be updated, nor maps will load.

This article will not only explain what is APN how it works, but will also help you figure it out in the subtleties of its settings. We will take a detailed look at where to find APN parameters on different versions Android (from old Android 7 Nougat to fresh Android 15), how to manually add or edit an access point, as well as diagnose and correct errors - from “no Internet connection” to “incorrect APN”. We will pay special attention hidden APN parameters that operators rarely advertise, but which can significantly improve the speed and stability of the connection.

If you are not a technical specialist, don’t worry: we avoid complex terminology and provide clear step-by-step guide with illustrative examples. And for experienced users, we have prepared extended tips for optimizing APN for roaming, IPv6 and working with eSIM.

What is an APN and why is it important for Android

APN (Access Point Name) is a kind of “address shortcut” that your smartphone uses to connect to the operator’s mobile network. Think of the APN as a postal code: without it, the letter (your data) will not reach the addressee (Internet resource), even if you have an envelope (SIM card) and a stamp (paid tariff).

When you insert a SIM card into a Androiddevice, the operator automatically sends a set of APN parameters to the phone - this is called OMA CP profile (Open Mobile Alliance Client Provisioning). However, sometimes this process fails: for example, if you use dual-SIM an adapter, non-original firmware, or are in roaming. In such cases, the APN must be configured manually.

  • 📡 Main APN function: determines exactly how your device will connect to the operator’s network for data transfer (Internet, MMS).
  • 🔄 Dynamic nature: APN parameters may vary depending on the tariff, region or technologies (4G/5G).
  • ⚙️ Manual configuration: required if the automatic configuration did not work or the operator updated the parameters.

Interesting fact: some operators (for example, Tele2 or Yota) use one APN for all services (Internet + MMS), while others (like MTS or Beeline) separate them. This is important to consider when setting up manually.

📊 How do you usually set up an APN?
I use automatic settings
I set it up manually according to the operator's instructions
I've never set it up, everything works on its own
I don't know what APN is

Where to find APN settings on Android: step-by-step guide

The path to the APN settings may vary slightly depending on the version Android and shell of the manufacturer (for example, MIUI na Xiaomi, One UI na Samsung or ColorOS na Oppo). We have collected current routes for the most popular devices:

Android version / Shell Path to APN settings Features
Android 12-15 (clean) Settings → Network and Internet → SIM cards → Operator name → Access points (APN) You may need to tap on the operator name
MIUI 13-14 (Xiaomi/Redmi/POCO) Settings → SIM cards and mobile networks → [Select SIM] → Access points (APN) On some models item hidden behind “Advanced settings”
One UI 5-6 (Samsung) Settings → Connections → Mobile networks → Access points You may need to enter the SIM PIN
ColorOS 12-13 (Oppo/Realme) Settings → Mobile network → [Select SIM] → Access point name The interface may differ on models for Europe and Asia

If you do not find the “Access Points” item in the specified paths, try using the search in the settings (magnifying glass icon in the upper right corner). Enter the request APN or access point —the system will prompt you to the correct path.

Make a backup copy of the current settings (take a photo of the screen)

Make sure that the SIM card is active and not blocked

Check your account balance (sometimes operators block data when it is zero)

Connect to Wi-Fi during setup (if the Internet is not working)-->

APN structure: which parameters are important and what they mean

When you open the list of access points, a table with many fields appears in front of you. Most of them are filled in automatically, but some require manual entry. Let's look at key APN parametersthat affect the operation of the mobile data:

  • 🔑 Name (Name): arbitrary profile name (for example, “MTS Internet”). Does not affect operation, but helps to navigate the list.
  • 🌐 APN: the main parameter is the unique identifier of the operator’s network (for example, internet.mts.ru or internet.beeline.ru).
  • 🔒 Authentication Type (Authentication type): usually PAP or CHAP. Leave the default if you are not sure.
  • 📶 APN Type (APN type): Determines what the access point is used for. The standard value is default,supl (for the Internet and geolocation). For MMS, add mms.
  • 📱 Protocol/Roaming Protocol (APN protocol/Roaming protocol): IPv4/IPv6 or IPv4. The choice depends on operator support.

The remaining fields (for example, MMSC, MMS proxy, Port) relate to MMS settings and usually do not require changes. However, if you are not sending multimedia messages, you will also have to check them.

What is the "Bearer" parameter in APN?

This parameter determines the type of carrier network that will be used for data transmission. Possible values: (default) - automatic selection leave the default value unless your operator specifically states otherwise.

- Unspecified (default) - automatic selection

- GPRS - for old 2G networks

- LTE - priority for 4G

- NR - for 5G (rarely used)

In most cases, leave the default value unless your operator specifically states otherwise.

⚠️ Attention: never change the MCC (country code) and MNC (network code) manually. These values ​​are assigned automatically and depend on your SIM card. Incorrect MCC/MNC can lead to complete loss of connection.

How to add or edit an APN point manually

If the automatic APN setup did not work (for example, after resetting the phone to factory settings or changing the operator), you will have to create a profile manually. Here are the universal instructions:

  1. Open the APN settings in the path corresponding to your version Android (see table above).
  2. Click on the three dots in the upper right corner and select New access point (or Add APN).
  3. Fill in the fields according to the parameters of your operator (see the section below with examples for popular operators).
  4. Save the settings (button Save or OK in menu).
  5. Return to the APN list and select the newly created profile (place a dot next to it).
  6. Reboot the phone for the changes to take effect.

If you are editing an existing APN, be careful: some operators block manual changes of parameters. In this case, you will have to create a new profile from scratch.

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Before saving a new APN, make sure that the field APN type is specified default,supl —this guarantees correct operation of both the Internet and geolocation services (for example, Google Maps or Yandex.Navigator).

⚠️ Attention: on some devices (especially with custom firmware), after manually adding an APN, you may need resetting network settings. To do this, go to Settings → System → Reset → Reset network settings. Wi-Fi network, but will solve connection problems.

Below are the current APN settings for the main mobile operators in Russia. Please note that options may vary depending on your plan or region. If you use a virtual operator (for example, Tinkoff Mobile or SberMobile), check the settings on their official websites.

Operator APN Username / Password APN type
MTS internet.mts.ru mts / mts default,supl
Beeline internet.beeline.ru not required / not required default,supl
MegaFon internet gdata / gdata default,supl
Tele2 internet.tele2.ru not required / not required default,supl,mms
Yota yota.ru not required / not required default,supl,dun

To configure MMS, you will additionally need to specify:

  • 📩 MMSC: MMS server address (for example, http://mmsc:8002 for MTS).
  • 🔗 MMS proxy: proxy server (for example, 192.168.192.192:8080 for Beeline).
  • 📏 MMS port: port (usually 8080 or 80).
⚠️ Attention: APN parameters may change without warning. For example, Megaphone in 2023, updated settings for tariffs with 5G support. Always check the latest data on the operator’s official website or in your personal account.

Common APN errors and how to fix them

Even after setting up the APN correctly, the mobile data may not work. Here are typical problems and ways to solve them:

  • 🚫 "mobile data does not turn on":

    Check whether data transfer is activated in the settings (Settings → Network and Internet → Mobile network). Make sure that the correct APN profile is selected (there should be a dot next to the name).

  • 🔄 "APN is saved but not applied":

    On some devices (especially Samsung) after editing APN requires reboot. Also try creating a new profile instead of editing the old one.

  • 📵 "No 4G/5G icon, only H+ or E":

    This indicates problems with the network type. Check if your plan supports 4G/5G. In the APN settings, make sure that the field Bearer is not GPRS.

  • 🔒 "Authentication required":

    Make sure that the fields Username and Password indicate correct data (or empty if the operator does not require authentication).

If none of the tips helped, try reset network settings:

  1. Go to Settings → System → Reset → Reset network settings.
  2. Confirm the action (you will need to enter a PIN code or pattern).
  3. After the reboot, wait until the APN is automatically configured (may take up to 5 minutes).
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If after all the manipulations the Internet still does not work, the problem may not be in the APN, but in the SIM card itself (for example, it is damaged or blocked by the operator). Try inserting it into another phone or contact support.

APN for roaming, eSIM and other special cases

Setting up an APN while roaming or when using eSIM has its own nuances. Let's look at them in more detail.

Roaming:

  • 🌍 Most operators automatically change the APN when entering roaming, but sometimes manual configuration is required.
  • 📱 For MTS in roaming, use APN internet.mts.ru (same as at home), but add to APN type value dun (will look like default,supl,dun).
  • ⚠️ In some countries (for example, China or the UAE), local laws require the use of local APN. Check with your operator in advance.

eSIM:

  • 📲 APN settings for eSIM are no different from a physical SIM card. The profile is created in the same way as described above.
  • 🔄 If after activation eSIM there is no Internet. works, try deleting all saved APNs and wait for them to be installed automatically (may take up to 10 minutes).

Dual-SIM and two APNs:

On devices with two SIM cards (dual-SIM), each slot has its own set of APNs.

  • 📇 The names of APN profiles for different SIMs should be different (for example, “MTS Slot1” and “Beeline Slot2”).
  • 🔄 When changing SIM cards (from slot 1 to slot 2), APNs are not transferred automatically - they will have to be configured again.
How to check which SIM slot is active for data?

Open Settings → Network and Internet → SIM cards. This will indicate which SIM is used for data transfer (usually marked with a checkmark or the inscription "Mobile data").

FAQ: answers to frequently asked questions about APN on Android

Is it possible to use one APN for two operators?

No, each operator has unique APN parameters. If you use two SIM cards from different operators, each will require its own APN profile. The exception is virtual operators (MVNO), which sometimes use the infrastructure of the main operator. (for example, Tinkoff Mobile works on the network Tele2 and can use its APN).

Why did the Internet disappear after updating Android?

A system update can reset the APN settings to factory settings. Try:

  1. Delete all existing APNs.
  2. Reboot the phone.
  3. Wait for the profile to be automatically installed (usually you receive an SMS with the settings).
  4. If it is not automatically configured, add the APN manually (see instructions above).
How to find out which APN is currently in use?

The active APN is displayed in the list of access points with a dot or a checkmark next to the name. You can also use the engineering menu:

  1. Enter the code in the phone application ##4636##.
  2. Select Phone information.
  3. Scroll down to the block APN in use.

⚠️ Do not change other parameters in the engineering menu - this may disrupt the operation of the phone!

What to do if the operator has blocked manual APN editing?

Some operators (for example, Yota or corporate tariffs) block APN editing. In this case:

  • Contact the operator's support and request that the settings be sent via SMS (usually a message with the configuration is sent).
  • Try resetting the network settings (Settings → System → Reset → Reset network settings).
  • If all else fails, consider changing the operator or tariff.
Does APN affect Internet speed?

Yes, but indirectly. Incorrect parameters (for example, an outdated protocol IPv4 instead of IPv4/IPv6) can limit speed. For maximum performance:

  • Use APN with support IPv6 (if the operator supports it).
  • Make sure that the field Bearer is Unspecified or LTE (for 4G/5G).
  • Check what is APN type indicated default,supl,dun (for full compatibility).

Also, the speed depends on the load on the operator’s network, signal quality and tariff plan.