What is eSIM on Android Xiaomi: a complete guide to technology

Modern Xiaomi smartphones are increasingly deprived of the usual tray for physical SIM-cards, giving way to built-in digital solutions. eSIM (embedded) SIM) — It's a technology that allows you to upload a carrier profile directly to your device's memory without having to use plastic media. For Android ecosystem owners, it opens up new frontiers of mobility and connectivity.

Unlike a standard card that can be lost or damaged, a virtual profile is securely protected inside the phone’s chip. Xiaomi users can instantly switch between different plans or operators directly from the settings menu, especially for those who travel frequently or use separate numbers for work and personal purposes, not wanting to carry multiple devices with them.

Technology is becoming the de facto standard for flagship and mid-budget models. Understanding how a digital SIM card works will help you make the most of your gadget. In this article, we’ll take a look at how to check compatibility, activate a profile, and solve typical connection problems.

The principle of operation and advantages of eSIM technology

The fundamental difference is that there is no physical contact: the eUICC (Embedded Universal Integrated Circuit Card) chip is already sold on the smartphone motherboard in the factory, and is a reprogrammable module that is capable of storing many carrier profiles, although only one (or several, depending on the implementation of the Dual SIM) can be active at a time.

For Xiaomi users, switching to digital means not going to the salons for plastic. All the procedures, from tariff selection to activation, are software-based. You scan. QR-code provided by the operator or using a special application, and the network appears on the phone in a few minutes.

• 📱 Space saving: lack of tray allows Xiaomi engineers to increase battery size or install a more powerful vibration output module.
• 🌍 Global roaming: the ability to buy local fares anywhere in the world without replacing a physical card.
• 🔒 Security: When a phone is stolen, an attacker will not be able to extract SIM-map to hide the location of the device.

⚠️ Note: Not all regional versions of Xiaomi smartphones have an unlocked eSIM module. If you bought a device designed for the Chinese market, the feature may be software-locked or physically absent, even if the model is global.

It's important to understand that you can delete the operator profile and reload it, but the chip itself doesn't wear out. The resource of overwriting data in eUICC is designed for thousands of cycles, which vastly exceeds the life of any smartphone, which makes the technology reliable and durable.

List of supported Xiaomi, Redmi and POCO models

Any Xiaomi Android phone won’t be expected to support the new technology, with engineers rolling out hardware support gradually, starting with the flagship series. In the low-end Redmi and POCO segment, eSIM is still a rarity, although there is a trend toward expanding the list of devices.

Most often, the module is implemented in models focused on the international market (Global Version), Chinese versions of the same phones (CN Version) can have two physical slots instead of one physical and one virtual, so it is important to check the model labeling when buying.

Below is a table of popular devices where technology is most commonly supported, but the final decision always depends on the specific audit (motherboard) and the region of sales.

Note the note in the table for the Lite series. Often in pursuit of a thin body, manufacturers sacrifice eSIM support, leaving two physical slots. Always check the specification of a particular device on the official website or in the box before buying if this feature is critical for you.

How to check for eSIM in Xiaomi settings

Before you contact the operator, you need to make sure that your smartphone is technically ready to work with virtual profiles. In the shell of MIUI or HyperOS, this information is hidden in the system menu, the verification takes less than a minute and does not require an Internet connection.

Go to the basic settings of the device and find the connection section. The path may vary slightly depending on the version of the operating system, but the logic remains the same. If the menu is empty or the option is missing, then the hardware module is not activated.

Settings → SIM-cards and mobile networks → Add a tariff plan

If you see the "Add tariff plan" or the button with a sign"+", So your phone is compatible. Pressing this button will trigger the scanner. QR-If you don't have a software program, you can either choose a customization application, or you can choose a customization application, and if you don't have one, you can either have a model that doesn't support the technology, or you can have a Chinese firmware that doesn't have global modules.

• 🔍 Open Settings on the main screen.
• 📡 Go to section. SIM-maps and mobile networks.
• ➕ Look for the active button Add a tariff plan.

⚠️ Note: If you have reflashed the phone from the Chinese version to the global (Global) ROM), eSIM function may not work correctly or is absent, since the firmware does not always coincide with the hardware configuration of the board.

Step-by-step instructions for activating the profile

The process of connecting a new operator to Xiaomi is standardized and takes only a few minutes. You will need a stable Wi-Fi connection, since downloading a profile requires the transfer of encrypted data. Mobile Internet at this point can be interrupted, so it is better to use a wireless network.

You gotta get it first. QR-This can be a paper sheet from the salon, an email or a code in your personal account on the site. Make sure that the code has not been used yet, since most operators only allow you to activate a profile once.

Follow the algorithm: open the settings SIM-Click "Add tariff plan" and point the camera at QR-The system automatically reads the data and starts downloading, which may require confirmation of actions on behalf of Google or the service provider.

Once you have successfully downloaded, you will be prompted to configure your profile usage, you can assign it to mobile internet, voice calls, or SMS by default, and you can also set up names to easily switch between profiles, such as "Work" and "Travel."

Set up and manage multiple profiles

One of the key features of eSIM on Android is the ability to store multiple profiles. Although there are usually only one or two active at a time (dual SIM mode), you can store up to 5-8 different numbers in memory, switching between them programmatically in a couple of seconds.

You can manage profiles in the same menu where the activation occurred, you can rename profiles, give them colors to distinguish them visually, and set priorities, for example, you can configure a script where the Internet always uses a "Tourist" profile and for calls - "Main".

• 🔄 Quick switching: Use notification curtain or desktop widget to change your active profile.
• 🗑️ Delete: Unused profiles can be deleted, making room for new ones, although the memory limit is quite large.
• 📊 Statistics: in the traffic consumption settings, you can separately monitor the data consumption of each virtual number.

Before selling the device or flashing it, be sure to delete the confidential data of the operators or perform a complete reset, saving the recovery codes beforehand, if required by your operator.

💡

Storing multiple profiles doesn’t consume a battery – only one profile you select is active at a given time.

Typical problems and ways to solve them

Despite the fact that the technology is fine, users may experience activation errors, most often problems are associated with unstable Internet or incorrectly entered data, and understanding the causes of errors will help quickly restore the service without going to the service center.

If the phone says, "Failure to add a tariff plan," check the date and time. Incorrect timestamps can cause security certificates to fail when connecting to the operator's server. Set up automatic time synchronization over the network.

Another common problem is carrier lock-in, and some providers link eSIM to the Internet. IMEI-If you've changed your phone or reflashed it with a change IMEI, activation can be blocked, in which case you need to request a new QR-code of the operator, specifying the current data of the device.

⚠️ Note: When resetting network settings (Wi-Fi, mobile internet and Bluetooth reset), eSIM profiles are not deleted, but may stop working before the device restarts.

In rare cases, there is a conflict of software modules. If nothing helps, try updating your smartphone firmware to the latest available version. Xiaomi engineers regularly release patches that correct errors with network modules and communication protocols.