Xiaomi Redmi 8 smartphone owners often wonder how to make the most of their device for everyday tasks. One of the most sought-after features in the modern rhythm of life is contactless payment using a smartphone. This allows you to forget about your wallet and carry only a phone that is always at hand. However, the setup process on devices with a shell MIUI has its own features that must be considered for stable operation.
Before you start activating payment services, it is important to make sure that your device is technically ready for this. Xiaomi Redmi 8 is equipped with NFC (Near Field Communication), which is responsible for transmitting data over short distances. Without this component, phone payment would not be possible, so the first step should always be to check the availability and operability of this module in the system. Unlike some budget models of other brands, in the “eight” from Xiaomi this feature is present, but requires proper activation.
This guide will help you go through all the stages of setting up, from turning on the module in the system to adding the first bank card to Google Wallet. We will look at the typical errors that MIUI users may have and how to fix them. Following the instructions, you can quickly and safely configure your gadget for instant payments in stores, cafes and transport.
Compatibility check and availability of NFC module
The first and most critical step is to confirm that the near field communication module is indeed active and serviceable. Even though the Xiaomi Redmi 8 was originally designed to support this technology, there may be crashes or regional restrictions in the software, so you need to go to the settings menu and find the connection section, which is usually called Connect and Share or is located in the top menu of the quick settings.
Note that the switch locations may differ from one version of MIUI firmware. If you don't see the NFC icon in the notification curtain, don't panic. Go to Settings → Connection and Sharing. This is where the main switcher that triggers the antenna is hidden. Once turned on, the phone may suggest you choose the default card emulation app, which is the normal system response.
There's an easy way to check the physical health of the antenna without a transaction: Hold the phone on with the back cover to any card with a chip or a ticket, and if the device vibrates or makes a characteristic sound, then the module is working correctly and ready to interface with payment systems.
⚠️ Warning: If the phone doesn't respond to card presentation after switching on, it may be a metal case or magnetic holder that shields the signal.
It’s also important to make sure that the device has up-to-date security updates installed. Google regularly updates certificates for payment apps, and older versions of Android may not add new cards. Check for updates in About Phone → MIUI version.
Google Pay (Wallet) setup on MIUI
After the module is successfully activated, it is necessary to prepare a software environment for making payments. The main tool for Android users remains the service from Google, which has now transformed into the Google Wallet application. On Xiaomi smartphones with a MIUI shell, it is important to correctly configure access rights so that the energy saving system does not block the payment application in the background.
To start, download or update the Google Wallet app (formerly Google Pay) through the official Play Market store. Once installed, open the app and log in to your Google account. The system will automatically request permission to use the NFC module - be sure to agree to this request. Without this permission, the phone will not be able to transfer encrypted data to the terminal.
The battery settings are particularly important, and MIUI is known for aggressive power optimization that can kill payment application processes.
- 📱 Go to Settings. → Annexes → All applications.
- 💳 Find in the list of Google Wallet or Google Pay.
- 🔋 Select "Battery" and set "No Limits".
- 🔒 Turn on auto-start for this app so it works immediately after the screen is turned on.
You can now start linking your credit card. Press the Add Tool button and follow the instructions on the screen, you'll need to take a picture of the card or enter the data manually, and then confirm ownership of the card via SMS code or a bank call, and once successful verification, the card will appear on the list and become available for payment.
☑️ Pre-payment checks
Addition and verification of a bank card
The process of adding a card is the key point where users often have questions. Modern banks use layered protection, so simply binding an account number is impossible without verifying identity. When you enter card details into Google Wallet, the application contacts the issuing bank servers to verify the status of the card and the possibility of tokenized transactions.
In some cases, the bank may request additional confirmation via its own mobile app, and if you see a message after you type in the SMS, "Action is required in the bank application," go to the bank client, where you need to confirm permission to add to Google Pay in the security or card section, which is standard security procedure.
Not all cards are supported, but the major payment systems Visa, Mastercard and Mir (depending on the region and current restrictions) usually work without problems, and some virtual cards or momentum cards may require a separate activation of contactless payment services in the Internet bank.
Once you add it successfully, you'll see a green checkmark or "Ready to Pay" sign, and you can then add multiple cards from different banks and switch between them directly at the time of payment by selecting the one you want in the Google Wallet interface.
⚠️ Note: When adding a card, make sure that the service is connected to it"3-D Secure, or similar online security protocol, without which a bank can block tokenization attempts, considering it suspicious.
Instructions for payment in the store
Using a smartphone to pay is as simple as possible and does not require running apps or connecting to the Internet at the time of the transaction. All the necessary data is already encrypted and stored in the device's secure chip. To make a purchase, you do not even need to unlock the screen, although this is recommended for security.
Go to the payment terminal and make sure the contactless payment icon (usually four waves) is on the screen.Unlock your Xiaomi Redmi 8 (Unlocking is mandatory for a transaction over a certain amount or at the request of the bank.Put the top of the back of the phone to the terminal reader at a distance. 1-2 centimeter.
The phone should vibrate gently, and the screen will show a message about successful payment. The whole process takes less than a second. If the terminal squeaks, but the payment does not pass, do not remove the phone immediately - you may need to re-plate or change the angle of inclination.
The table below shows the main statuses you can see on the screen during and after payment:
| Status on screen | Meaning | User actions |
|---|---|---|
| Bring the device in. | Terminal ready, phone close by | Don't move, keep stable. |
| Processing... | Data exchange is underway with the bank | Waiting for completion (1-3 seconds) |
| Paid for. | Transaction is successful | Put the phone away. |
| Communication error | Failure of connection to the terminal | Try again |
Solving Connection Problems and Errors
Even if you set up correctly, users may encounter situations where payment is not going through, most often it is not a fault but a software conflict or security settings, such as when a phone has modified versions of the system (Rootright) or unofficial firmware, Google may block payment for security reasons.
Another common reason is time desynchronization. To run cryptographic keys, the time on the device must match the server time to within minutes. If you've recently changed your time zone or reset your settings, check if you have automatic network time synchronization. You can find this setting in Settings → Additional settings → Date and time.
If the card is added but the terminal says "Disclaimed", the problem may be on the bank side, which may mean a card lock, no funds or contactless payment limits, in which case you need to call the bank's contact center, indicated on the back of the card.
- 🔄 Reboot your smartphone – this clears temporary files and restarts communication modules.
- 🗑️ Remove the map from Google Wallet and add it again.
- 📶 Check if flight mode or traffic savings are included that may interfere with work.
- 🧹 Clear the cache of the Google Pay Services app in the app settings.
⚠️ Warning: Never attempt to pay for a purchase if a compromised device warning pops up on your phone screen. In this case, the payment system is blocked intentionally, and the use of the phone as a means of payment is impossible until the security threat is eliminated.
Security and data protection issues
The security of using Xiaomi Redmi 8 for payments is provided by tokenization technology, which means that when you pay, the store never receives your real card number. Instead, a unique digital token is transmitted that is valid for only one particular transaction, and even if hackers intercept this signal, they will not be able to reuse it or restore the card data.
Also, all transactions require biometric or graphical authorization, and you can't pay for a purchase if the phone is in your pocket or on your desk — confirmation always requires an action by the owner (a fingerprint, a face scanner, or a pin code) that creates an additional layer of protection against theft.
In case of loss of the phone, you have the ability to remotely block access to payment means. Through the Find My Device service, you can not only track the location of the gadget, but also completely clean its contents or block the screen, which will make it impossible for unauthorized persons to use Google Wallet.