How to connect and configure NFC on Xiaomi Redmi Note 9 Pro: Full Guide

Xiaomi Redmi Note 9 Pro is one of the most popular smartphones of the mid-price segment, which is still actively used by users. Despite the release of new models, this workhorse remains in demand due to balanced characteristics, among which is the support of technology. NFC. But many owners have trouble trying to activate contactless payments or use tags. What's the reason? NFC-The module in Redmi Note 9 Pro requires the correct configuration, and in some regional firmwares this feature is initially disabled.

In this article, we will look at how to check for NFC in your model, enable the module through hidden settings, configure Google Pay and other payment services, and solve typical problems from lack of response to tags to payment errors. We will focus on the nuances of MIUI firmware from different versions, because the activation algorithm may differ. If you have tried to turn on NFC, but unsuccessfully, do not rush to blame the device: in 90% of cases, the problem lies in the software settings, not in the hardware.

Check NFC support in Redmi Note 9 Pro

Before trying to turn on NFC, Make sure your smartphone supports this technology at all. In the case of the Redmi Note 9 Pro, there is an important caveat: not all modifications are equipped with this technology. NFC-For example, the Indian version (Redmi Note 9 Pro India) often comes without it, while the global and European version (Redmi Note) is often available without it. 9S) — fully supported.

To check for the module:

• 📱 Look at the smartphone box: if you NFC supported, it will be appropriate sticker or mention in the characteristics.
• 🔍 Enter the word in the search for settings «NFC» — If there is a module, the system will show contactless payments or NFC and.
• 📋 Check the model in settings: go to Settings → The phone. → Version. MIUI and click several times on the Core to open the menu CIT. In the Hardware info section, find the line NFC — If there is one, the module is installed.

Important! If NFC is not in CIT, but you're sure you bought a global version, maybe you have a fake or a gray import, in which case the module is not physically soldered to the motherboard, and it's not software-enabled to activate it.

How to enable NFC through standard MIUI settings

If the module is present, you can activate it in the standard way, depending on the version of MIUI, the path to settings may vary slightly, but the overall scheme is maintained:

1. Open Settings (the gear icon on the main screen).
2. Go to Connect and Sharing (or Wireless Networks in older versions).
3. Slip on the NFC item (can be called Contactless Payments).
4. Activate the NFC slider at the top of the screen.
5. To use payment services, also include HCE Wallet (card emulation).

⚠️ Attention: On some firmware MIUI 12.5 and below paragraph NFC If you don't see it in the Connection and Sharing menu, try updating the system or using an alternative method (described in the next section).

After activating NFC, the smartphone will be ready for:

• 💳 Contactless payments via Google Pay, Mi Pay or banking apps.
• 📱 Sharing data with other devices via Android Beam (if supported).
• 🏷️ Reading and recording NFC-tags (for example, to automate tasks).

Alternative way: Enable NFC through the Engineering Menu

If the standard method didn't work, it's likely locked at the firmware level, and the ##INFO### (or #4636##) engineering menu will help, which works even on the "cut-down" versions of MIUI, but requires caution:

1. Open the Phone app and enter the combination ##4636##.
2. In the menu that opens, select Phone Information (or Phone Information).
3. Scroll down to the RF Band Mode block and find the NFC string.
4. If the status is Off, tap the line and select On.
5. Go back to the basic settings and check for the NFC.

⚠️ Note: Some firmware may not have an engineering menu or be blocked. If nothing happens after you enter the code, try using the app. MTK Engineering Mode (for MediaTek processors) or update MIUI last-minute.

Critical nuance: on the Redmi Note 9 Pro with a Snapdragon 720G processor, the engineering menu may not contain options for NFC. In this case, the only way out is through Fastboot with an unlocked bootloader.

Google Pay and other payment services

Activating NFC is only half the battle. To pay with your smartphone, you need to set up a payment service. The most universal option is Google Pay (now Google Wallet), but you can also use Mi Pay (for China) or banking applications (Sberbank Online, Tinkoff, etc.).

Instructions for Google Pay:

1. Download the Google Wallet app from Google Play.
2. Open it and press Add the map.
3. Take a picture of your bank card or enter the data manually.
4. Confirm the addition via SMS or push notification from the bank.
5. After successfully binding, go to NFC settings and select Google Wallet as the default payment app.

Common mistakes and their solutions:

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Before you make your first payment, check your card balance in the bank app. Some terminals charge funds immediately rather than blocking them, as with a physical card.

Using NFC for Automation (Tags and Tasks)

The NFC in the Redmi Note 9 Pro can be used not only for payments, but also to automate routine tasks, such as touching a tag on your desktop can include silent mode, and a tag in your car can trigger your navigator.

• 🏷️ NFC-tags (you can buy on AliExpress or in electronics stores).
• 📱 Application for recording labels, for example, NFC Tools or Trigger.
• 🤖 Rights to change system settings (for certain actions).

Example of setting up a tag to start Wi-Fi:

1. Open NFC Tools and select Write → Add Record → Wi-Fi.
2. Enter the network name and password.
3. Put the tag on the phone for recording.
4. Now, touching the tag will automatically connect the device to Wi-Fi.

⚠️ Note: Some tags have limited memory (from 144 bytes).If you are trying to write a complex command (for example, running multiple applications), use tags with 888 bytes or more of memory.

Solving NFC Problems on Redmi Note 9 Pro

If NFC is not working at all, check out the following:

1.NFC antenna problems

The NFC antenna in the Redmi Note 9 Pro is located at the top of the body, next to the camera. If the phone fell or was repaired, the antenna contacts could move away. Check the response to the tag by bringing the smartphone in different directions. If the operation is only at a certain angle, the problem is in the antenna.

2. Conflict with other applications

Some programs (such as Greenify or optimization tasks) can block NFC.

• 🔄 Reboot the phone.
• 🚫 Add Google Pay to auto-cleaning exceptions (Settings) → Annexes → Auto-start).
• 📵 Turn off the power saving mode.

3. Resetting NFC settings

If the module is glitchy (it turns off or does not read the tags), reset its settings:

1. Go to Settings → Applications → Application Management.
2. Find NFC Service and clear the cache.
3. Turn off and turn on the NFC again.

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If NFC stopped working after the MIUI update, roll back to the previous firmware version or wait for a patch. Often, contactless payment bugs are fixed in the next updates.

FAQ: Frequent questions about NFC on Redmi Note 9 Pro