NFC Security Element chip in Xiaomi: location, purpose and problems

If you’ve ever tried to set up contactless payments on a Xiaomi smartphone and encountered bugs like “NFC doesn’t support HCE” or “No Security Element detected,” the problem is likely to be the lack or incorrect operation of the NFC Security Element (SE), a tiny chip that is a key component for Google Pay, Mi Pay and other payment systems, but many users are unaware of its existence until there are crashes.

In this article, we will discuss in detail what is a security element. NFC In Xiaomi smartphones, where it is physically located (and why it is not in some models), how to check for it, and what to do if the system “can’t see it.” Xiaomi/Redmi/POCO hardware-equipped SE, What software emulation is used for and why it is essential for payment security.

Note at once: the information is relevant for all modern Xiaomi devices (2018-2026), but there are nuances for specific lines (for example, Redmi Note or POCO F). If your smartphone is released before 2018, most likely, there is no hardware SE in it - more about this in the section on compatibility.

What is NFC Security Element and Why You Need It?

The NFC Security Element (SE) is a secure microprocessor that stores and processes cryptographic keys for contactless transactions. Without it, a smartphone cannot emulate a bank card according to the EMV standard (the same one that payment terminals operate on).

• 🔐 Hardware – a physical microcontroller soldered into the motherboard (the most reliable option).
• 📱 programmatic (HCE) — Host Card Emulation (works without a separate chip, but less secure).
• 💳 Outside - built into SIM-card (eSE) or microSD (rarely found in Xiaomi).

SE’s primary mission is to protect payment card data from cloning and fraud. When you attach a phone to a terminal, the chip generates a one-time token instead of transferring the real card number. Without SE, payment systems (like Google Pay) simply don’t certify the device for transactions.

In smartphones Xiaomi hardware SE usually integrated NFC-controller (e.g., chips) NXP PN80T or PN548). In the budget model (e.g. Redmi). 9A or POCO M3) It is often removed from the design, leaving only basic support. NFC for data transmission (for example, for labels or pairing with columns).

⚠️ Note: If your Xiaomi specifications are listed «NFC: Yes, it doesn't guarantee payment support. We need to clarify the availability of Security Element.

Where is the NFC Security Element chip located?

In most Xiaomi smartphones (for example, Mi 11, Redmi Note 12 Pro)+, POCO F5) Security Element hardware is soldered into the motherboard next to NFC-The exact location depends on the model, but there are general patterns:

• 📍 Under the battery – in 80% of cases, the chip is on the back of the board, under the battery (for example, next to the connector for the battery). SIM-map).
• 🔧 In the module. NFC — single-model NFC-chip (e.g, NXP PN80T) SE integrated.
• 📶 Next to the antenna – in devices with a metal body (for example, Xiaomi 13 Pro) the antenna is placed on a plastic insert, and the chip is located next to the device.

For clarity, we give a layout scheme on the example of popular models:

To find the chip yourself, you will need to disassemble the smartphone (which voids the warranty!).We do not recommend doing this without experience - it is better to use software methods of verification (about them in the next section).

How to check if you have security element in your Xiaomi

There are several ways to determine the presence of NFC Security Element without disassembling the device:

1. Through NFC settings: Open Settings → Connections & Sharing → NFC. If there is a tab called Contactless Payments or Mi Pay, then SE is present.
2. Through the NFC Tools app: Install NFC Tools from Google Play. Run the scan - if the app shows "Secure Element detected," the chip is there.

If none of the methods worked, your Xiaomi either doesn’t have a hardware SE or it’s disabled at the firmware level (relevant to some Chinese versions of devices).

⚠️ Note: Some models (e.g. Xiaomi for the Chinese market) SE It can be blocked by the manufacturer, and even if you have a chip, the payments won't work, you'll need to unlock through an engineering menu or change the firmware region.

Why Xiaomi doesn’t see the NFC security element: common reasons

If your Xiaomi smartphone suddenly stops recognizing Security Element, the problem may lie in the following:

• 🔄 Firmware failure - after update MIUI Could have been a driver. NFC or setting SE.
• 🔋 Power problems – if the chip doesn’t get voltage (for example, due to a bloated battery pressing on the board).
• 🛠️ Antenna damage – contact could break off after falling or repairing NFC-module.
• 📵 Region Block – Chinese versions of Xiaomi often lack support for Google Pay due to manufacturer restrictions.
• 🦠 Virus software – some Trojans block access to the virus SE data-stealer.

The most common cause is a software failure. Try the following steps to diagnose:

1. Reboot your smartphone and check the NFC again.
2. Reset NFC settings: Settings → Applications → Application Management → NFC → Storage → Clear data.
3. Update your firmware to the latest version of MIUI (sometimes bugs are patched).
4. Try adding a card to another payment system (e.g. SberPay instead of Google Pay).

If nothing has worked, the problem is likely hardware – you will need a diagnosis in the service center.

Xiaomi models with hardware Security Element: the full list

Not all Xiaomi smartphones are equipped with NFC Security Element hardware, and here is an updated list of models (as of 2026) that support contactless payments via Google Pay/Mi Pay:

Note that even if the model is on the list, the Chinese versions (with the CN suffix) may not support Google Pay due to regional restrictions, in which case only reflashing to the global version of MIUI will help.

For low-end models (such as the Redmi 9A or POCO M3), the manufacturer often eliminates the hardware SE, leaving only basic NFC support for data transfer.

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If your model is not listed with a hardware SE, contactless payments via Google Pay won’t work – just file transfers or pairing with devices.

How to Enable or Reboot Security Element on Xiaomi

If the NFC Security Element in your Xiaomi suddenly stopped working, try the following methods:

Method 1: Reboot NFC-module

1. Open Settings → Applications → Application Management.
2. Find “NFC” in the list and select “Stop”.
3. Then click on “Storage → Clear cache”.
4. Reboot your smartphone.

Method 2: Resetting NFC settings

1. Go to Settings → System → Resetting settings.
2. Select “Reset Network Settings” (this will also reset Bluetooth and Wi-Fi).
3. After the reboot, try adding the card to Google Pay again.

Method 3: Manually enable through engineering menu

For advanced users:

1. Enter the dialer code ##4636##.
2. Go to “Phone Information» → «NFC».
3. Check the status of "Secure Element." If it's "Disabled," try turning it on manually (root required).

⚠️ Note: On some firmware (for example, MIUI China) the engineering menu can be blocked, in which case only the flashing to the global version will help.

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If NFC still doesn’t work after a reset, try removing and re-addling the payment card to Google Pay. Sometimes the problem lies in the app’s cache, not in the chip itself.

What to do if Security Element is damaged or missing

If the diagnostics show that the NFC Security Element in your Xiaomi is physically damaged or missing, there are several ways to solve it:

• 🔧 Repair in the service center – if the chip is soldered or the antenna is damaged, the wizard can restore the connection (cost: ~1 500–3 000 ₽).
• 📱 Use of external SE — Some banks (e.g. Sberbank) support payments through the SIM-eSE card. check with the operator.
• 🔄 Replacement of motherboard – if the chip burns out, you will need to replace the board (expensive, justified only for flagships).
• 💳 Alternative payment methods – use a physical card, smartwatch with NFC pay-bracelet.

For models without a hardware SE (like the Redmi 9A), the only way out is to buy a new smartphone with payment support. Alas, software emulation (HCE) in Google Pay does not work on devices without a certified chip.

If you decide to repair your smartphone, make sure the service center has experience with Xiaomi – unqualified repairs can permanently put NFC out of action.

FAQ: Frequent questions about NFC Security Element in Xiaomi