NFC stands for Near Field Communication and it’s a short range wireless communication technology. It allows the exchange of information over short distances by bringing together two devices that are within about 4 inches of each other.
In this article we will clarify how to use NFC on Xiaomi Redmi K40 in terms of activating, paying and transfering data.
Does Xiaomi Redmi K40 have NFC on its system?
Yes, Xiaomi Redmi K40 has an NFC technology which is activated by a small card inside the phone called a chip.
How to turn on NFC on Xiaomi Redmi K40? – Activation NFC
Before learning how to use NFC on Xiaomi Redmi K40, you need to activate it from settings. After that, you can go to the connections, and scroll down, then you can switch the NFC option.
How do I scan the NFC tag on Xiaomi Redmi K40?
Scanning an NFC tag on Xiaomi Redmi K40, comes after installing a writing app like TagWriter by NXP. You just need to open the app, and hold your phone near the tag then scan it. The following paragraphs explain more about downloading and using writing apps.
How can I share data by NFC on Xiaomi Redmi K40?
To share data from Xiaomi Redmi K40, NFC should be enabled as clarified before. Also, you need to activate Android Beam from NFC settings, more or share and connect, then enable the Android Beam. After activation, follow these steps to accomplish sharing data process:
– Open Gallery or your phone files.
– Choose the file or data you want to share it.
– Tap on share icon.
– Tap on NFC icon.
– After connecting with the other device, choose tap to share.
On many devices, the beam is activated automatically when you turn on the NFC. Also, some devices requires you to tap on the Android Beam icon after you tap to share the file or the photo. So, you need to tap on the icon, then continue the other steps as usually.
NFC Apps 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 easily with no need to do many tasks manually.
How to use Xiaomi Redmi K40 NFC payment?
To use NFC with tap to pay feature on your Xiaomi Redmi K40, follow these steps:
– Go to settings.
– Tap on share and connect.
– choose tap to pay.
– tap on Google pay.
– Add your bank and card details.
Whenever you want to make payment, open the app and tap it to another device. This allows you to pay electronically with your phone.
How to install NFC writing apps for android?
To write NFC tag you need to:
– turn on NFC on Xiaomi Redmi K40.
– Buy a blank NFC tag.
– Install Writing app (NXP tagwriter).
After downloading the app open it and continue reading the following paragraph about writing the tag by this app.
How to write NFC tags by using NFC apps?
To automate tasks by scanning tags, you need to write commands using a tag and NFC writing app. To write the tag:
– Open the app.
– Tap on write tags in the top right.
– Choose New Data set.
You will find many options, select the link for example to enter a URL.
– Choose the URL type.
– Enter the domain in the other field.
– Select save and write.
In the next screen you will find all of the options unchecked. Click on write, hold your phone, then move the tag in front of it and the confirmation screen will appear.
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.
Everything you need to know 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.