NFC stands for Near Field communication. It allows two devices to communicate and perform tasks like exchange data by touching them together or by holding them close enough to one another. This technology is often used in communication. Turning on NFC means turning on the chip in your phone that is responsible of every process done by this technology.
In this article, we will clarify how to use NFC on Xiaomi Redmi K40 starting from the activating of the chip and use it to make payments as an example.
Does Xiaomi Redmi K40 have NFC as a wireless technology?
Yes, NFC technology is available on Xiaomi Redmi K40 and you can enable it from settings.
How to turn on NFC on Xiaomi Redmi K40? – Activation NFC
It’s so important to learn how to use NFC on Xiaomi Redmi K40 in terms of paying, sending files to save your time, but you need first to turn on the feature by go to the settings then connection and sharing. After that, scroll up, and activate the NFC switch. You can also activate the N-mark from the notification centre. Swipe down from the main screen and activate the icon.
How can I scan NFC tags on Xiaomi Redmi K40?
Scanning an NFC tag on Xiaomi Redmi K40, comes after downloading a writing app like TagWriter by NXP. You just need to open the app, and hold your phone close to the tag then scan it. The following paragraphs clarify more about installing and using writing apps.
What is the best way to share files using NFC on Xiaomi Redmi K40?
Download “send anywhere” app in both devices. In the first device, open the app and tap on share option in the top left corner. As for the other device, tap on yes I agree and close the window. Next, in Xiaomi Redmi K40, 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 on the other device, then choose while using the app. In Xiaomi Redmi K40 , tap on yes I agree then close the window and tap on the photo or file in both phones.
Apps for NFC on Xiaomi Redmi K40
To write NFC tags for task automation on your Xiaomi Redmi K40, you need third-party apps, while to make payments you need NFC payment apps. These apps help you to use your phone features effortlessly with no need to do many tasks manually.
How to make contactless payments through the Google pay app?
To use NFC for making payments on Xiaomi Redmi K40, you need to activate tap to pay feature by following these steps:
– Go to settings.
– Share and connect.
– Click 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. Whenever you want to pay, open the app and put it close to the other device and tap to pay.
How to install NFC writing apps for android?
To write NFC tag you need to:
– enable NFC on Xiaomi Redmi K40.
– Buy a blank NFC tag.
– Install Writing app (NXP tagwriter).
After installing the app open it and continue reading the following paragraph about writing the tag by this app.
How to Write NFC tags on Xiaomi Redmi K40
To write a tag in order to automate task by scanning it with your phone, follow the clarification below:
– Open the app you download.
– Click 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.
What is the storage capacity you need to write NFC tag?
The memory you need depends on the form of data, if you want to store text it will take 26 Bytes. On the other hand, a web address requires 19 Bytes, and SMS requires 68 Bytes. As for Emails you will need at least 83 Bytes.
What do you need to use NFC on Xiaomi Redmi K40?
Using NFC on Xiaomi Redmi K40 requires you to be familiar with Xiaomi Redmi K40 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.