NFC Xiaomi 7A: How to Include, Configure and Use Without Errors

Introduction: Why is it necessary NFC Xiaomi 7A and how to activate it properly

Technology NFC (Near Field Communication has long been an integral part of modern smartphones, including budget models like Xiaomi Redmi. 7A. It can help you pay for purchases contactlessly, transfer files to other devices, connect smart gadgets and even unlock doors. However, many users face the problem of where exactly in the settings of Xiaomi. 7A hidden option NFC, Why is it sometimes not on the menu?

In this article, we will discuss not only the standard method of activating the module, but also alternative methods for cases where NFC It doesn't show up in settings or doesn't work properly, and you'll learn how to check for support on your device, what applications you'll need to use, and what to do if your smartphone doesn't recognize tags or payment terminals. MIUI, which allow for optimizing the work NFC Xiaomi 7A productivity-free.

Before you go to the instructions, make sure your Redmi is a good one. 7A Updated to the latest firmware version. MIUI function NFC It may be limited or malfunctioning, and check if the device has any third-party shells (e.g., a sleeve, POCO Launcher, which sometimes hides system settings.

Step 1: Checking for support NFC Xiaomi Redmi 7A

Before trying to turn on NFC, You need to make sure that your smartphone model is equipped with this module at all. 7A In the low-end segment, some regions have versions of the device that have the hardware disabled. NFC:

• 🔍 Device specifications: Go to the official Xiaomi website or check the smartphone box "NFC: For Redmi. 7A support NFC European and global versions are usually equipped with a module, and Indian or Chinese versions may not have one.
• 📱 Check code: Enter the combination ##4636## in the Phone app. In the menu that opens, select Phone Information and scroll down. If there is a item in the list "NFC", The module is present.
• 🛠️ Diagnostic applications: Install a utility from Google Play NFC Check or NFC They're not only going to confirm the module, they're going to test it.

If none of the methods have confirmed the existence of NFC, It is probably your Xiaomi model. 7A It doesn't support technology, and then all the instructions will be useless, but if there's a module that doesn't activate, read on.

⚠️ Note: Some vendors indicate the characteristics NFC, If you bought a smartphone from an unofficial store, you risk a fake or a gray version without a module!

Step 2: Standard way to include NFC via settings MIUI

If you have a Xiaomi Redmi 7A supportive NFC, You can turn it on through the standard settings menu:

1. Open the Settings app (the gear icon on the home screen).
2. Scroll down and select Connect and Share (or Wireless Networks in older versions) MIUI).
3. At the top of the screen, find a point "NFC" and tap him.
4. Transfer the slider to the "On" position (it will turn blue).
5. Below you will see the option “Android Beam” – it can be enabled to transfer files between devices.

After activation of the module in the upper right corner of the screen will appear icon NFC (If you don't have one, try restarting your smartphone or updating your firmware.

In some versions MIUI point "NFC" may be elsewhere:

• 🔄 Settings → Additionally. → Wireless technologies
• 🔄 Settings → System system → Advanced settings

If you do not find an option, try searching by settings (the magnifying glass icon in the upper right corner).

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If NFC switched on but immediately turned off - check if the "charge saving" mode is activated". MIUI Automatically deactivates the module to reduce power consumption.

Step 3: Alternative ways of inclusion NFC (if the standard doesn't work)

There are situations where NFC It's not in the settings, although the module is physically present. MIUI Or a system malfunction. Let's look at a few ways to solve this problem:

Method 1: through the developer menu

Activating the developer mode sometimes allows you to access hidden settings NFC. Here's how to do it:

1. Go to Settings. → The phone.
2. Find the item "Version" MIUI" And you tap it 7 times in a row, and you'll get a notification, "You're a developer".
3. Return to the main settings menu and open a new section for developers.
4. Scroll down and find the option "NFC" Or "Wireless." Turn it on.

Method 2: Applying the application NFC Tools

If system settings do not allow you to turn on the module, try third-party software:

1. Download the NFC Tools app from Google Play.
2. Open it and press the three dots in the upper right corner.
3. Select "Settings" → "Turn on NFC".
4. Confirm the request for access to the module.

Method 3: Resetting network settings

Sometimes a work failure NFC It's linked to network parameter conflicts:

1. Go to Settings → System → Resetting settings.
2. Select "Reset Wi-Fi, Mobile Network and Bluetooth settings".
3. Confirm the action and restart the smartphone.

⚠️ Warning: Network reset will delete all stored Wi-Fi passwords and associated Bluetooth devices!

Step 4: setup NFC contactless

One of the most popular applications NFC — Paying for purchases with a smartphone to set up this feature on Xiaomi 7A, Follow the following steps:

1. Adding a Bank Card to Google Pay

Contactless payments will require the Google Pay app (formerly Android Pay):

1. Download and install Google Pay from the Google Play Market.
2. Open the app and log in to your Google account.
3. Click "Add card" and scan it or enter the data manually.
4. Confirm the addition via SMS or push notification from the bank.

2. Default payment setting

To Xiaomi 7A Automatically use Google Pay when you reach the terminal:

1. Open Settings → Applications → Applications by default.
2. Select "Payment" or "NFC-payment".
3. Specify Google Pay as the default app.

Verification of work

To make sure everything is set up correctly:

• 💳 Bring the smartphone to the contactless terminal (distance not more than 5 cm).
• 📱 A request for payment confirmation should appear on the screen.
• ✅ After successful payment, a notification will be received from the bank.

If the payment does not pass, check:

• 🔋 Battery level (should be) >15%).
• 📶 Internet connection stability (network access is required for first authorization).
• 🛡️ Bank security settings (some cards require additional activation for contactless payments).

Step 5: Use of NFC for data transmission and work with tags

Besides payments, NFC Xiaomi 7A can be used:

• 📤 Transfers of files between devices (photos, contacts, links).
• 🏠 Control of a smart home (connection of sensors, lamps, locks).
• 🔖 Readings/recordings NFC-tags (for example, to automate tasks).

Transfer files via Android Beam

To send the file to another smartphone:

1. Enable NFC and Android Beam on both devices.
2. Open the file you want to transfer (photo, contact, web page).
3. Bring Xiaomi. 7A back cover to another smartphone (distance) 1-2 centimeter).
4. Wait for the sound signal and vibration – the transmission will begin automatically.

Work with NFC-marker

To create automated scripts (for example, turning on Wi-Fi when holding your phone to a desktop tag), use the Trigger app or NFC Tools Pro:

1. Buy clean. NFC-tags (cost from 50 rubles per piece).
2. Open NFC Tools and select "Write".
3. Specify an action (e.g., "Enable Wi-Fi" or "Open Site").
4. Bring the tag to the back cover of the smartphone to record.

Example of useful scenarios:

• 🚗 Car: The tag in the car turns on Bluetooth and triggers the navigator.
• 🛏️ Bedroom: A label on the nightstand activates the "Do Not Disturb" mode and reduces the brightness of the screen.
• 💼 Office: Desktop tag opens corporate applications and connects VPN.

⚠️ Attention: NFC-Labels can be overwritten a limited number of times (usually 100,000 cycles) and do not use them to store critical data, only for commands and links!

Step 6: Troubleshooting NFC Xiaomi 7A

If NFC Does not work or is not working smoothly, try the following solutions:

Problem 1: NFC It is activated but does not recognize the device.

Possible causes and ways of elimination:

• 🔋 Low battery charge: NFC It turns off when the charge level is below 15.
• 🛡️ Case conflict: Metal or thick covers block the signal. Remove the case and try again.
• 📱 Software failure: Reboot your smartphone or reset your settings NFC In Settings → Annexes → All applications → NFC (click "Erase the data").

Problem 2: NFC not available in the settings after the update MIUI

Sometimes after updating the firmware item NFC The solutions disappear:

• 🔄 Update rollback: If the problem appears after the update, try rolling back to the previous version MIUI via Mi Flash Tool.
• 🛠️ Manual activation: Install through ADB Adb shell settings put global nfc_enabled 1 (Developer rights and PC connection required).

Problem 3: NFC It only works for payments, not data transfers.

This is due to the Android Beam shutdown. To fix:

1. Go to Settings → Connection and Exchange → NFC.
2. Activate the Android Beam option.
3. If you don’t have a point, install the Android Beam Enabler app from Google Play.

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If NFC It stopped working after the smartphone fell, and it's likely that the antenna module was damaged, and in this case, it needs repairs at the service center.

FAQ: Answers to Frequent Questions about NFC Xiaomi 7A