Contactless payments via a smartphone have long become the standard, but owners of budget Xiaomi models often face problems when setting up. Redmi 9 is one of the most popular smartphones in the line, but its NFC module does not work as clearly as flagships. If you are trying to tie a Sberbank card for payment through your phone, but the terminal does not see the device or gives an error, this article will help to understand the nuances.
The challenge is that the Redmi 9 (M2004J19C) comes in a number of versions, and not all of them are equipped with NFC hardware. Even if the chip is present, it needs to be activated correctly in the MIUI settings, installed compatible payment software, and linked to a bank card, and we will go through each step in detail, from checking for the module to solving typical payment errors.
Check if you have NFC in your Redmi 9
Before you set up a payment, make sure your smartphone supports the technology at all. Xiaomi Redmi 9 came in multiple versions, and only a few of them are equipped with an NFC chip.
- 📦 Box and documentation: Find the sticker on the package or in the instructions. NFC or mention of contactless payments – the module is present.
- 🔍 Phone Settings: Go to Settings → Connection and sharing → NFC. If there is no chip, there is no chip physically.
- 📱 Device Model: Go to Settings → The phone. → Model. Modifications with NFC have the letter N in the code (for example, M2004J19CN).
If you don’t have an NFC partition in your settings, but you’re sure the model supports the technology (for example, you bought a smartphone from an official store with a contactless payment tag), try updating your firmware. Sometimes the feature is hidden due to outdated software.
Activation of NFC and Enabling Contactless Payments
If the NFC module in your Redmi 9 is present, you need to turn it on correctly. By default, the function can be disabled to save battery life.
- Open Settings and go to Connect and Sharing.
- Slip on the NFC item and move the slider to the On position.
- Below you will see the option Contactless payments – activate it.
- Select the default payment app. For Sberbank, it will be SberPay or Google Pay (depending on the card you are attached).
Important: After activation NFC The smartphone may require a reboot. Also make sure that the Quick Pay feature is enabled - this will allow you to not unlock the phone for amounts up to 1000. ₽ (Limit depends on the terminal).
Module availability checked NFC|Contactless payments are included|Annex installed SberPay/Google Pay|The smartphone is restarted after activation-->
Installation and configuration of the SberPay application
To pay with a Sberbank card via NFC, Redmi 9 will need the official SberPay application, which can be downloaded from Google Play or AppGallery (if you have Huawei services installed).
- 📲 Download: Install SberPay from the App Store.
- 🔑 Authorization: Sign in with the username and password from Sberbank Online or by fingerprint (if configured).
- 💳 Linking Card: In the Cards section, select the one you want to pay and activate the Pay by phone option.
- 📶 Communication Check: Make sure your phone has internet access (required for first tethering).
If you add a card error "Device is not supported", check:
- Is NFC activated in the settings?
- Has the SberPay app been updated to the latest version?
- Have administrator rights been established with third-party antiviruses (they can block access to NFC).
💡
If SberPay doesn’t see the card, try temporarily disabling VPN or proxy – some bank servers block suspicious connections.
Google Pay for Sberbank cards (alternative method)
If SberPay is unstable or you are more comfortable using Google Pay, you can link a Sberbank card through this service, the advantage of supporting multiple cards and a wider list of compatible terminals.
Instructions for addition:
- Install Google Pay from the Play Market.
- Open the app and click Add Card → Credit or debit card.
- Scan the card of Sberbank or enter the data manually.
- Confirm the binding via SMS (the code will come to the number associated with the card).
- After adding, select Google Pay as a contactless payment app in NFC settings.
Important: Sberbank can block the addition of a card to Google Pay if it is issued before 2019 or belongs to outdated tariffs (for example, “Youth”).
Why can Sberbank block a card in Google Pay?
Testing Payments and Solving Typical Errors
After setting up, the most important thing is to check if the payment is working.
- Unlock your phone (if the amount is more than 1000) ₽, PIN code will be required).
- Move the top of Redmi 9 (where the NFC antenna is located) to the terminal at a distance of 2-3 cm.
- Wait for a beep or vibration, which means that the payment has passed.
If the payment does not work, check:
| Mistake. | Possible cause | Decision |
|---|---|---|
| Terminal doesn't see the phone | NFC is disabled or antenna is damaged | Check the settings, restart the smartphone |
| "Card is not supported" | Old card or bank restrictions | Use SberPay or order a new card |
| Payment is effective, but the write-off does not pass | Insufficient funds or the limit is exceeded | Check the balance and repeat the payment |
| The phone vibrates, but the terminal is making an error. | Conflict with another payment application | Remove duplicate wallets (such as Mir Pay) |
If the problem persists, try resetting the NFC settings:
Settings → Applications → Application Management → NFC → Storage → Clear cache💡
The most common mistake when paying through Redmi 9 is the wrong position of the phone at the terminal. The NFC antenna is located at the top of the case, so bring it, not the center of the screen.
Optimizing NFC performance to save charge
The NFC module consumes power even in the background, which can reduce the Redmi 9’s life by 5 to 10 percent to reduce battery consumption without losing functionality.
- 🔋 Turn it off. NFC, When you do not use payments (for example, through the Quick Settings Panel).
- ⚡ Use the energy saving mode in the Settings → Battery, but eliminate SberPay from optimization.
- 📵 Check background processes: Some applications (such as transport cards) can be scanned continuously NFC.
Also, upgrade MIUI firmware to the latest version – new builds optimized power consumption module. Check available updates in Settings → About phone → System update.
💡
If you rarely use contactless payments, install the NFC widget on the home screen, which will allow you to quickly turn the module on / off without going into the settings.
How to protect payments through NFC
Contactless payments are convenient but require increased attention to security, and here are the key measures to protect funds on the card of Sberbank:
- 🔒 Screen lock: Set up a pattern lock, PIN or fingerprint without unlocking a charge over 1,000 ₽ impossible.
- 📵 Small amounts: SberPay can set a limit on payments without confirmation.
- 🚨 Write-off notices: Include SMS-alerts to Sberbank Online to immediately see unauthorized transactions.
- 🛡️ Antivirus: Install reliable software (such as Kaspersky or Dr.Web) to protect against phishing attacks.
⚠️ Warning: Never store map photos or data screenshots in your phone gallery. Attackers can access them through vulnerabilities in messengers or cloud services.
If the phone is stolen or lost, immediately block the card through Sberbank Online or at the hotline 900. NFC Find My Device from Xiaomi.