The transition to digital technologies in the field of mobile communications is gaining rapid momentum, and eSIM (embedded SIM) is becoming a new standard for smartphone users. This technology allows you to abandon physical plastic cards, freeing up a slot for a second SIM card or memory card, and also simplifies the process of changing an operator or connecting to roaming abroad. However, many owners of Android devices are still frightened by the question of how exactly the process of switching to a virtual profile occurs and where to start.
In fact, the connection procedure eSIM on devices running Android is quite simple if your phone technically supports this function. Instead of going to a phone shop and waiting for the plastic to be processed, you can register a number remotely by receiving a special QR code or activating a profile directly through the operator’s application. In this article, we will analyze in detail all the stages: from checking the compatibility of your gadget to setting up network settings for stable Internet operation and calls.
It is worth noting right away that the menu interface may differ slightly depending on the manufacturer of your smartphone and the version of the operating system. Companies Samsung, Xiaomi, Google and others use their own shells, so item names may vary. However, the general algorithm of actions remains the same for the entire ecosystem Android, and following our recommendations, you can easily activate a digital SIM card.
Checking the compatibility of the device and operator
The first and most important step before attempting activation is to make sure that your smartphone supports the technology eSIM. Not all modern models, even flagship ones, are equipped with the necessary chip to work with virtual profiles. Typically, this information is indicated in the technical specifications on the manufacturer's official website or in the box of the device.
In addition to the phone's hardware support, you need to make sure that your chosen mobile operator provides connection services via eSIM. Large federal operators have already implemented this option, but regional providers may still be limited to physical media only. It is also important to check whether your phone is locked to a specific operator (SIM-lock), as this may prevent the addition of a profile from another service provider.
To quickly check technology support, you can use a special engineering code or look at the information in the system settings. Enter the command *#06# in your phone and press the call button. A list of your device identifiers will appear on the screen.
- 📱 If you see the number EID (Embedded Identity Document), it means that your smartphone is technically ready to work with eSIM.
- 🚫 The absence of an EID code indicates that the device does not have the necessary module, and activation is impossible.
- 🌐 Make sure that the Android version is not lower than 9.0, although Android 10 and higher is recommended for full operation.
⚠️ Attention: The presence of a slot for a physical SIM card does not guarantee eSIM support. These are completely different technologies, and the phone may have two slots for plastic, but not have a chip for a virtual card.
Choosing a method for obtaining an eSIM profile
After confirming compatibility, the stage of choosing an activation method begins. Telecom operators offer several options for obtaining a profile, and the choice depends on whether you are a new subscriber or an existing customer who wants to replace a physical card with a virtual one. Each method has its own characteristics and documentation requirements.
The most common method is to use QR code. The operator generates a unique code that contains encrypted profile data. This code can be obtained in your personal account on the operator’s website, in the mobile application, or ordered to be delivered to a communication store. When receiving the code in the salon, you will need a passport for personal identification.
An alternative option is activation through the official operator application. Many major providers have implemented instant eSIM issuance functionality right inside their apps. In this case, you do not need to scan any codes: the process occurs automatically after confirming your data via biometrics or SMS code.
The table below shows the main methods of obtaining a profile and their features:
| Receipt method | Required documents | Activation speed | Where to get |
|---|---|---|---|
| QR code (online) | Passport details, access to your personal account | Instantly | Operator website / Personal office |
| QR code (offline) | Original passport | 15-30 minutes | Operator communication salon |
| Operator application | A valid SIM card of this operator | Up to 5 minutes | Mobile application (App Store/Google Play) |
Step-by-step guide for activation through Android settings
The process of installing a profile on a smartphone may seem complicated only at first glance. In fact, the system Android has a built-in setup wizard that guides the user through all stages. The main thing is to have at hand the QR code received from the operator or data for manual entry and a stable connection to the Wi-Fi network.
First, open the settings of your device and find the section responsible for connections. Depending on the phone model, this item may be called “Connections”, “Network and Internet” or “Mobile network”. Inside this section you need to find the SIM card management item.
Next you should follow the sequence of actions to add a new operator:
- Click on the button
Add tariff planorAdd eSIM. - The system will ask for permission to use the camera to scan the QR code - confirm the action.
- Point the camera at the code received from the operator, holding the phone motionless.
- Wait for the profile to load and give the new SIM card a name (for example, “Work” or “Travel”)
☑️ Checklist before activation
After successful scanning, the phone will load the operator’s profile. At this point, you may be required to enter a PIN if your operator has installed additional security measures. When the process is complete, an icon for the new network will appear in the notification shade, and you can switch between SIM cards in the settings.
⚠️ Attention: When scanning the QR code, make sure that there are no glares or cracks on the screen of the other device (from which you are scanning). One-time codes often stop working after the first activation attempt, so be careful.
Setting up Internet and network settings
After successful profile activation, a situation often arises when calls go through, but the mobile data does not work. This is because the access point settings (APN) are not always applied automatically the first time you connect an eSIM. You may need to manually adjust the settings for correct data transfer.
To fix this, go to the mobile network settings, select your new eSIM profile and find the “Access Points (APN)” item. Usually a default profile has already been created there, but if the Internet does not work, try creating a new access point by taking data from the official website of your operator.
Key parameters that need to be checked:
- 🌐 Name: can be anything, for example, "Internet".
- ⚙️ APN: a critical parameter (for example, "internet.mts.ru" or "internet.beeline.ru"), must match the operator's requirements.
- 🔒 Authentication type: usually PAP or CHAP is selected, less often - None.
It is also important to select default SIM card for data transfer. In the settings of the two SIM cards, indicate which profile (physical or eSIM) will be used for mobile data. This is especially true if you use one card for calls and the other for cheap traffic.
Transferring a number from a physical SIM card to an eSIM
Many users want to keep their usual phone number, while switching to a modern communication format. The procedure for porting a number (MNP within one operator) is possible and regulated, but requires compliance with a certain procedure in order not to be left without communication during the transition period.
It is important to understand that you cannot simply “convert” an old SIM card into your phone. The process looks like a media replacement: the operator issues a new virtual profile with your old number, and the old physical card is blocked. The moment you activate the eSIM, your plastic SIM card will stop working.
⚠️ Attention: Do not remove or throw away the physical SIM card until the eSIM is fully activated and verified. If any failures occur, the old card will serve as a backup communication channel to solve problems with support.
To initiate the transfer, contact the communication store or use the operator’s application by selecting the “Replace SIM card with eSIM” service. After receiving new details and entering them into the phone, the old card will be disabled automatically within a few minutes. The whole process takes from 15 minutes to 2 hours, depending on the load on the operator’s networks.
Frequent problems and ways to solve them
Despite the well-functioning technology, users may encounter various errors during setup eSIM. Most often, problems are associated with incompatibility of software versions, data entry errors, or temporary failures on the operator’s side. Knowing common errors will help you quickly restore communication functionality.
One of the common errors is the message “Failed to add a tariff plan.” This can happen if the QR code has been used previously, has expired, or the phone is unable to connect to the operator's activation server. In such cases, you need to request a new activation code from your operator.
Also, users often complain about the lack of network after rebooting the phone. In this case, check whether the eSIM profile is disabled in the settings. Sometimes the system may reset network priorities, and you will need to manually select the operator in the “Mobile networks” -> “Telecom operators” menu.
If all else fails, the last resort is to reset the network settings. Please note that this action will delete all saved Wi-Fi passwords and paired Bluetooth devices, but often solves problems with registration on the network.
Settings → System → Reset settings → Reset Wi-Fi, mobile data and Bluetooth settingsCan I use an eSIM and a physical SIM card simultaneously?
Yes, most modern smartphones with eSIM support allow you to use one physical slot and one virtual profile simultaneously in Dual SIM mode. You will be able to receive calls to both numbers and switch the Internet between them.
What will happen to the eSIM when you reset the phone to factory settings?
With a full reset (Hard Reset), the eSIM profile may be deleted from the device, depending on the phone model and Android version. In some cases, the system will ask if you want to delete pricing plans. It is recommended to clarify this point with the operator before resetting in order to be able to restore the profile.
Is it possible to transfer an eSIM to another phone?
Technically, the eSIM profile is tied to the unique EID code of a specific device. To transfer to another phone, you must contact your operator to reissue the profile to a new EID. You cannot simply copy the profile file for security reasons.
Is it safe to store the activation QR code?
The QR code contains activation data, but is usually one-time use. After successful activation, it becomes invalid. However, you should not publish a photo of the code in open sources before activation to avoid fraudulent activities.
Does eSIM work in roaming?
Yes, eSIM technology is ideal for travel. You can purchase a profile of a local operator of another country in advance through specialized services or applications and activate it upon arrival without changing the physical SIM card.