NFC is a technology that allows two devices to exchange data when they are within four inches of each other.
NFC tags are used to store and exchange data with an NFC compatiable device like a smatrtphone.
Some popular use cases of the NFC feature on smartphones include unlocking doors, exchanging contact information, and paying at places like tolls gates. In this article we will focus more on payments and sending files with NFC in Xiaomi Redmi K40 Pro.
Does Xiaomi Redmi K40 Pro have NFC as a short-range technology?
Yes, Xiaomi Redmi K40 Pro has an NFC feature which is enabled by a small card inside the phone called a chip.
How to turn on NFC on Xiaomi Redmi K40 Pro? – Activate NFC
NFC on Xiaomi Redmi K40 Pro should be turnen on manually from settings or the main screen as explained in the following steps:
– Go to the settings.
– Tap on connection and sharing.
– Scroll up.
– You will find NFC switch, turn it on to enable the feature.
Also, you can enable NFC from the main screen:
– Swipe down from the top.
– press on the NFC icon and it will be activated.
Now follow the next paragraphs to learn how to use NFC on Xiaomi Redmi K40 Pro
How to scan the NFC tag on Xiaomi Redmi K40 Pro?
Here is a quick guide to use scanning with NFC on Xiaomi Redmi K40 Pro. After downloading a writing app like TagWriter by NXP, open it then hold your phone approximate to the external tag and it will be scanned. In order to learn how to download and use writing apps, follow the next paragraphs.
How to transfer data by using NFC on Xiaomi Redmi K40 Pro?
To share files from Xiaomi Redmi K40 Pro to an Android device, you need to download send anywhere (File Transfer) app. After installing the app in both, Xiaomi Redmi K40 Pro and the other device, click on send option in the bottom left corner of the app.
In the other device, tap on yes, I agree and close the window. On Xiaomi Redmi K40 Pro, tap on
– Newly installed apps.
– Send anywhere.
– Media files from screenshot or another folder.
Now remove the mark from the first two options and keep it for the files you want to send them. Next, click on send and got it.
– Tap on the upper right icon
– Choose while using the app.
– press on the arrow in the bottom left corner.
Now Insert the key you see in Xiaomi Redmi K40 Pro on the other device, then choose while using the app. In Xiaomi Redmi K40 Pro, tap on yes I agree then close the window and tap on the photo or file in both phones.
Does Xiaomi Redmi K40 Pro have apps for NFC?
When it comes to NFC tags for task automation on your phone, you need a third-party app. For make payments, you need an NFC payment app.
These apps allow you make the most of your phone features in no time with no hassle.
How to use Xiaomi Redmi K40 Pro NFC payment?
To use NFC features on Xiaomi Redmi K40 Pro, you need to turn on tap to pay by following these steps:
– Go to settings.
– Share and connect.
– Tap on tap to pay.
Choose the appropriate app to use it. After that, open the app, add a card and enter the bank and card details.
Wenever you want to pay, open the app and tap on “Pay” and place the other device close to your phone.
How to install NFC writing apps for android?
Firstly, you need to enable NFC on your Xiaomi Redmi K40 Pro. After that, make sure that you have a blank NFC tag or buy a one. Next, download Writing app (NXP tagwriter).
Open the app and follow the text below to write the tag with it.
How to write NFC tags by using NFC apps?
To write a tag in order to automate task by scanning it with your phone, follow the clarification below:
– Open the app you download.
– Press on write tags in the top right.
– Choose new data set.
Let’s assume that you choose “link”:
– Choose its type.
– Enter the domain in the other field.
– Select save and write.
In the next screen, all options are unckecked. Click on write, then hold your phone close to the tag to see the confirmation on the screen.
I want to write an NFC tag, how much memory do I need?
The memory you need to write an NFC tag is not the same because if you want to write or store a web address, you will need 19 bytes, while you need 68 bytes for SMS. As for Emails, it requires at least 83 bytes.
What do you need to use NFC on Xiaomi Redmi K40 Pro?
Using NFC on Xiaomi Redmi K40 Pro requires you to be familiar with Xiaomi Redmi K40 Pro NFC settings that include :
– Turning on NFC: A process of activating NFC from settings.
– Using the antenna: A sensor makes it possible to share data wirelessly.
– Scanning: Making contactless communication between two phones using the NFC sensor.
– Paying: using the NFC feature to make contactless payments.
– Transferring data: Sending data from one device to another by using NFC.