Communication technology is changing rapidly, and physical Nano-SIM cards are gradually becoming a thing of the past, giving way to more progressive solutions. Owners of modern gadgets are increasingly wondering how to make a virtual SIM card for Android in order to get rid of the need to look for a paper clip for the tray and be afraid of losing a tiny chip. This technology, known as eSIM (embedded SIM), is built directly into the motherboard of the device, which opens up a lot of possibilities for travelers and those who use several numbers at the same time.
The process of activating a digital profile may seem complicated due to the abundance of technical terms, but in practice it takes only a few minutes. You don't need special tools or a visit to a phone shop if your operator supports remote profiling. However, before you start setting up, you need to make sure that your smartphone is compatible and that the telecommunications company is ready to provide the service in digital format.
In this material we will analyze each stage in detail: from checking technology support to the intricacies of setting up the Internet and voice communication. We will look at the features of interfaces from different manufacturers, since the paths to the menu may differ by Samsung Galaxy, Google Pixel or Xiaomi. You will also learn about common problems when scanning QR codes and how to solve them without wasting precious time.
Checking device and operator compatibility
The first and most critical step is to verify the hardware of your phone. Not all Android smartphones are equipped with an eSIM module, even if they are relatively new. Most often, flagship models and devices in the mid-price segment of the last three years of production have this function. To find out the exact information, go to the settings and find the section About the phone or use the search in the settings by entering the query "eSIM" or "Digital SIM card".
If there are no corresponding items in the menu, support may be disabled at the firmware level for a specific sales region. For example, some models intended for the Chinese or US markets may have restrictions in other countries. In this case, you should contact the manufacturer’s support service or check the specifications of your specific modification on the official website. Remember that the presence of a slot for a physical card does not guarantee the presence of a built-in chip.
⚠️ Attention: When buying a used smartphone or importing a device from abroad, be sure to check the network unlocking. Some operators sell phones with blocked IMEI, which makes it impossible to connect eSIM profiles from other providers.
In addition to hardware, you need to make sure that your mobile operator supports the technology. Large federal operators have already introduced this service, but connection conditions may vary. In some places it’s free when you switch to a new tariff, but in others you charge a fee for issuing a digital profile. Check the current tariffs in your personal account or with a consultant, as the rules may change.
Preparing for activation and obtaining a profile
After confirming compatibility, the next step is to obtain activation data. The telecom operator will provide you with a unique QR code that contains encrypted information about your subscriber number and network access keys. This code can be obtained in several ways: in the operator’s official application, in your personal account on the website, or in person at the sales office. When choosing the remote method, the code is often sent by email or displayed on the screen after completing the application.
It is extremely important to ensure a stable connection to the Wi-Fi network before starting the procedure. The profile download process requires data exchange with the operator's server, and when using a mobile network (if there is one on the device at all), failures are possible. Also make sure that the battery charge is at least 30-40% so that the device does not turn off at the most crucial moment of writing data to the chip.
☑️ Ready to activate eSIM
If you plan to transfer an existing number to an eSIM, additional identification will be required. This could be confirmation through State Services, a video call with a bank employee, or a visit to a salon with a passport. Once verified, you will be issued a new QR code as the old physical card details will no longer be relevant. Save this code in a safe place, it is best to take a photo or screenshot of it, but remember that the code is often one-time use.
Step-by-step guide for adding an eSIM
The process of adding a virtual SIM card to Android is intuitive, but the interface may differ slightly depending on the version of the operating system and the manufacturer's shell. In most cases, the path is through the main settings menu. Find the section Connections or Network and Internet, and then select the item SIM card manager or Mobile network. Here you will see a button Add tariff plan or Add eSIM.
Click on the add button, and the system will prompt you to select an activation method. The standard option is to scan the QR code with your smartphone camera. Point the lens at the code provided by the operator while holding the device steady. The camera will automatically recognize the characters and a notification will appear on the screen about the profile found. Confirm the action by clicking Add.
In some cases, automatic scanning may not work due to poor lighting or glare on the screen where the code is displayed. Then you will have to use manual data entry. Typically, the QR code is accompanied by text information: the address of the activation server (SM-DP+ Address) and the activation code. Enter this data into the appropriate fields manually, respecting the case of characters and the absence of extra spaces.
Settings → Connections → SIM card manager → Add tariff plan → Scan QR codeAfter successfully loading the profile, the system will ask you to configure usage settings. You can give the card a name (for example, Work, Travel, Personal) to distinguish them in your contacts list and call logs. You also need to choose which SIM card will be used for mobile data by default, and which one will be used for voice calls and SMS.
Setting up the operation of two SIM cards at the same time
One of the main advantages of the technology is the ability to use two or more numbers on one device without the need to carry a second phone. After activating the eSIM, you will have a choice of operating modes. In the SIM card management menu, you can flexibly configure usage scenarios for each of them. This is especially convenient for separating work and personal calls or saving on roaming charges.
You can set priorities for different types of communication. For example, let the main physical SIM card be responsible for voice communications, as it may have better coverage in your area, but the virtual eSIM will be used exclusively for data transfer. Or vice versa: if you travel abroad, a local eSIM with cheap Internet will become the main communication channel, and the home number will remain active only for receiving incoming calls and SMS from banks.
- 📱 Voice calls: select the card from which you will call by default, or set up a request before each call.
- 🌐 mobile data: Determine which SIM card the traffic will go through to avoid being charged at an unfavorable rate.
- 💬 SMS messages: Indicate the preferred card for sending messages, which is important for confirming transactions in banks.
It is also worth paying attention to the function of switching between cards. In modern versions of Android, this is done quickly through the notification shade or widget on the desktop. You can temporarily disable one of the SIM cards without deleting the profile, which saves battery power and prevents accidental connections to paid services.
Solving common problems and errors
Despite the simplicity of the technology, users may encounter a number of difficulties during setup. One of the common errors is the message “Failed to add a tariff plan” or an endless download loop. Most often this is due to an unstable Internet connection while downloading the profile. Try switching to a different Wi-Fi network or moving closer to the router.
Another common problem is the "QR code is invalid" or "Code has already been used" error. Remember that most QR codes from operators are one-time only. If you accidentally scanned the code before or it was shown on the screen of another device, it may have activated or expired. In this case, you will have to request a new code from the operator's support or generate it again in the application.
| Error type | Possible cause | Solution |
|---|---|---|
| No network after activation | Incorrect APN settings | Manually enter access point parameters from the operator |
| Code cannot be scanned | Code damage or dirty camera | Enter SM-DP+ data manually or wipe the lens |
| The device does not see the eSIM | The module is disabled in the settings | Enable the eSIM switch in the SIM card menu |
| Profile loading error | The operator's server is unavailable | Try later or change the DNS in the Wi-Fi settings |
If the profile is loaded, but the Internet is not working, check the access point (APN) settings. Sometimes they don't load automatically. Go to the mobile network settings for your eSIM, select Access Points (APN) and create a new point by entering the data specified on the operator’s website. Usually this is the name of the point and the proxy address, but for modern 4G/5G networks it is often enough to leave the fields empty or enter the standard value internet.
⚠️ Attention: Do not reset the network settings to factory settings unless necessary. This will delete all saved eSIM profiles, and they can only be restored through a repeated request to the operator, which can take time and cost money.
Security and management of digital profiles
The use of virtual SIM cards imposes a certain responsibility on the user in terms of security. Since eSIM is tied to a specific device at the hardware level, it is necessary to delete the profile when selling or transferring the phone. In the settings, select the desired eSIM and press Delete tariff plan. This will break the connection between the chip and the phone number, preventing the new owner from accessing your data.
In addition, protect access to SIM card settings with a password or biometrics. In the security menu, you can set a ban on changing mobile network settings without confirmation with a fingerprint or face. This will prevent attackers from switching your Internet to their card or transferring calls to another number if the device is stolen.
Regularly check the list of active profiles in the settings. If you see an unknown SIM card or a profile that you did not install, immediately remove it and change the password for your operator’s personal account. Also keep an eye on smartphone software updates, as manufacturers often release patches that close vulnerabilities in the operation of communication modules.
Is it possible to transfer an eSIM from one phone to another?
No, the eSIM profile is tied to a unique device identifier (EID) upon activation. It cannot be transferred by simple copying. To change the phone, you need to delete the profile from the old device and request a new QR code from the operator for activation on the new gadget.
How many eSIM profiles can be stored on Android?
The number depends on the smartphone model and Android version. Modern flagships allow you to store from 5 to 10 profiles at the same time, but you can usually actively use (in standby mode) only two SIM cards at a time (one physical + one eSIM or two eSIM on some models).
Does eSIM work if the phone is turned off?
No, like a regular SIM card, eSIM requires power from the device to work. However, the technology allows you to quickly switch between profiles without physically replacing cards, which is convenient when you frequently change tariffs or travel.
What should I do if I reset the phone to factory settings?
With a full reset (Hard Reset), all eSIM profiles are deleted without the possibility of restoration through the "Cancel" button. You will have to contact your carrier to reissue the QR code and reactivate the number on the cleaned device.
Does eSIM affect Internet speed?
Technically, eSIM works as fast as a physical Nano-SIM. Internet speed depends on the support of network standards (4G, 5G) by your phone and the operator's tariff, and not on the type of SIM card.