How to find out if the phone supports nfs. What is NFC? Data transfer process

Today, technology allows people to pay not only with cash and a bank card, but also with a smartphone.

Contactless payments and mobile payment systems are the future, they are becoming popular every day. Google for your operating system created Android Pay (now), Samsung and Apple - systems of the same name with the prefix Pay. They work on the same principle - just bring the included unlocked smartphone to the contactless terminal.

Today we will tell you in detail how to use NFC, how to set up this feature, and what you need for this.

Smartphone with NFC

First and foremost, the device must be equipped with . It is he who is responsible for contactless transactions. If the gadget does not have NFC, unfortunately,. The operating system version must be Android 4.4 or higher.

How to find out if there is NFC:

• Ours.
• Official websites of manufacturers with a list of technical specifications.
• Settings - More / Advanced / Additional functions (depending on the version of Android and the proprietary shell). This section should have NFC and Android Beam features that need to be activated.

Supported card

This is the second most important condition. If the card does not support contactless payments or the bank for some reason gives an error when setting up the card, linking it to a smartphone and Android Pay will not work, an error will appear. In this case, you can either contact the bank with a request to reissue the card, or order a new one.

Almost all modern cards, including Sberbank (except Maestro), Alfa, Tinkov and others, support contactless payments. If you see such designations, then in most cases everything is fine.

Depending on the brand of smartphone, we download the application. As you know, all devices except Samsung and Apple need a program (now called Google Pay). It is on her example that we will show how contactless payment via NFC works.

After installing the application in it, you need to start bank card: You can scan it through your gadget's camera or enter the number manually. You also need to fill in the expiration date, the name of the owner and the CSV code (three digits on the back side) with your hands. Then the entered data must be confirmed - an SMS message with a code will be sent to the phone number to which the card is linked.

When this operation is completed, a bank card will appear in the Android Pay interface. At this stage, the application will definitely require you to set up a screen lock - these are Google's policies. You need to set a PIN graphic key or password. In the future, it will be possible with a fingerprint scanner, the main thing is that the device is unlocked.

Why are more and more mobile manufacturers equipping smartphones with an NFC chip, and what opportunities does this technology open up for the user?

Now on the mobile market there is a wide variety of high- and mid-range smartphones that are equipped with an NFC chip. Before paying for an additional feature, you need to figure out what it is and why you need it in your phone at all.

What is NFC?

NFC (Near field communication, or near field communication) is a wireless communication interface, one of the main characteristics of which, as the name implies, is a short range (up to 10 cm). Other features of the technology include:

• Ability to exchange with other devices and passive tags.
• Compact dimensions.
• Low power consumption.
• Low data transfer rate.
• Connection establishment time - 0.1 seconds.
• budget cost.

Due to its small size and low power consumption, NFC can be used in small devices. In smartphones, the antenna is usually mounted on the battery cover or on the inside of the rear panel if the battery is removable. So that users do not have a question about how to apply the gadget for data transfer (this problem is especially typical for tablets due to their large size and small range of the technology), the location of the chip is often marked with a special sticker on the case.

Since the NFC interface is only a base that does not provide a clear solution for use, mobile manufacturers and application developers have to independently develop work scenarios. This can cause interoperability issues between applications and devices from different manufacturers.

Ways to use NFC

Perhaps one of the most common ways to use NFC is. The user can attach a bank card to his mobile device, with which he will pay in the future, for example, if the card is left at home. In this case, the possibility of intercepting data is extremely small due to the small range of the interface; a lost or stolen unlocked smartphone poses a great danger.

To make a payment via NFC, you will need:

1. Bank card marked paypass.
2. Application of the respective bank.
3. Find the NFC item in the application menu.
4. Attach the card to the back cover of the phone for reading.
5. Remember the password for carrying out payment transactions, sent in an SMS message.

The next method of using the technology is data exchange. Via android programs Beam can transfer various files from one mobile device to another. However, the transmission speed is very slow, so this function is more suitable for sending small text messages and links.

Instruction:

1. Activate NFC - check the box next to this item in the "Wireless Networks" menu, unlock your smartphone and turn on the screen.

2. Select an agent:

• Google Chrome - to pass the current active link.
• Google Maps - to transfer the route.
• Google Play - for the transfer of applications, books and other content provided in the service.
• YouTube - to send a link to a video.
• Contacts - to transfer a contact.
• Gallery - for transferring photos and pictures (however, this may take a long time due to the low transfer speed, so in this case it is better to use special applications, which will be discussed below).

3. Move the devices closer until the alarm sounds.

4. Touch and hold the screen to confirm the transfer.

5. Another beep will sound to indicate that the file transfer was successful.

There are various applications that use the NFC interface only for pairing, and the subsequent file transfer is carried out via a Bluetooth or Wi-Fi connection: Send! File Transfer, File Expert HD and Super Beam WiFi Direct Share.

The next way is reading and writing labels. This function works similarly, only it uses not a smartphone camera, but an NFC chip. It can be useful for automating home and work life. To create your own, you will need blank blanks and special programs to record the necessary information. You can assign the following actions to a label, which will be performed after reading it: send an SMS message or email, call a contact, open a link, connect via Bluetooth, launch an application, and much more.

Several programs for creating labels:

1. WiFiTap WiFi NFC - for connecting a wireless network. Help guests connect to a Wi-Fi hotspot quickly and without entering a password.
2. ABA NFC - for creating various standard format tags.
3. SmartTag Maker is a special application for users of Sony products that contains a number of blanks used not only with the NFC interface, but also with a headset, Bluetooth devices, power supply, etc.

Outcome

Each user decides for himself whether he needs additional NFC function smartphone or not. However, this technology is used in an increasing number of mobile devices. Therefore, if you nevertheless purchased an NFC-enabled gadget, now you know how to use all its features to make life more convenient.

With the development of technology, various wireless data transfer interfaces are becoming increasingly popular, greatly facilitating and improving our lives. IrDA and Bluetooth, Wi-Fi and UWB, DECT standards allow you to transfer information over various distances, ranging in speed and distance of information transfer. Among the many different standards, a special place belongs to technology NFC, manifesting itself in the form of inconspicuous, but very common, benefits of civilization.

NFC chips are embedded in travel documents, they are used to pay for various services, are used in the exchange of files between mobile devices, and much more. What is NFC and why is it so good? I will talk about this below.

Name NFC is an abbreviation for Near Field Communication, which can be translated as "Near Field Communication". This technology is an extension of the previously existing near contactless card standard (ISO 14443).

• With the help of NFS, fast wireless communication is carried out over short distances (usually up to 10 cm), and the information exchange rate on iPhone and Android phones is up to 400 Kbps.
• The interface supports full duplex data exchange, the connection establishment time is 0.1 s.
• Unlike Bluetooth technology, which requires a relatively long pairing of devices, in NFC, it is enough to bring the device to each other to establish a connection.

Experts identify three NFC modes: reading mode, information transfer mode, bank card emulation mode.

Where is this NFC technology applied?

This technology is becoming more widespread where you need to quickly transfer a small amount of information in a short period of time.

Is there an NFC function on my smartphone

I note that support for NFS technology is implemented in Android version 4.0 and higher, in the form of the “Beam” function built into the system. To check the availability of this technology on your device, you need to go to the settings of your phone or tablet, select "Wireless networks", and then click "More". If you see the menu item "NFC", then you are lucky, and your phone supports this standard, you knowingly learned that this is NFC. To activate its work, it is enough to put a tick in front of the “NFC” item.

How to transfer data between mobile devices using NFC

How to use NFC? It is important to note that this NFC feature usually only works with unlocked screens of mobile devices. Therefore, activate "Beam" on both devices, unlock their screens, and bring the devices to each other (usually with the back side). The systems will find each other and you will receive a beep. By confirming the connection by touching the screen of the devices, you can exchange data between paired devices.

How the NFC function works with Samsung phones we can see in the video:

Working with NFC tags and chips

Given the small size of NFC chips and tags, they can be embedded in any item - bracelets and stickers, cards, price tags, and so on. To read data from such chips and tags, special applications are needed, which, for example, you can download from Play market(NFC card UID reader, Yandex.Metro, NFC Tag Touch and others).

Technology Disadvantages

Experts call the disadvantage of NFC the weak protection of data from interception and relay attacks. You can also simply lose your phone with configured programs payment systems, which will allow the attacker to empty the accounts of the lost.

Conclusion

It is clear that NFC is now slowly penetrating into all areas of our lives, and often we can meet it where we do not expect at all (for example, in London NFC tags embedded in monuments). The speed of establishing a connection, the low cost of NFC tags, and the ease of reading data make it possible to increasingly use this technology in many areas of human life, making our existence happier, more convenient and comfortable. Work with NFC - and you will appreciate all the richness of its advantages.

It stands for Near field communication, which can be translated as "near field communication" or as "near contactless communication." As the name implies, this is a technology for wireless communication over short distances.

NFC technology can be used to solve a wide variety of tasks. For example, using NFC, you can pay for purchases, identify your identity, set up wireless connections, and much more.

In this article, you will learn how to enable NFC on Android smartphone, as well as what Android Beam is, how to enable and use it.

In order to enable NFC on an Android smartphone, you need to open the settings and go to the section with additional settings for wireless networks. This section is usually called “More” and is located immediately after the “Wi-Fi”, “Bluetooth”, and “Data transfer” sections.

After opening the "More" section, you will see additional settings for wireless networks. If your Android smartphone supports NFC technology, then there will be a corresponding switch that allows you to disable and enable NFC.

How to enable Android Beam

Android Beam is a Google technology that allows you to transfer web pages, contacts, coordinates, directions, as well as photos and videos from one Android device to another using NFC technology.

The process of transferring data via Android Beam is very simple. All you have to do is unlock the two smartphones and place them back to back. After that, the devices will automatically detect each other and a prompt will appear on the screen to send data.

In order to enable Android Beam technology, you must first enable NFC, as described above. After enabling NFC, the “Android Beam” section will become available just below.

If you open the "Android Beam" section, then there will be a switch with which you can enable or disable this feature.

The modern mobile industry offers the smartphone user of any price category a lot of technologies that he really needs. However, not everyone knows about NFC technology, and even more of those who do not even use it. But this module is extremely important and convenient.

What is the essence of the "near field" technology?

It is most fully called "near field communication" - this is a literal interpretation of the English phrase "near field communication" or NFC for short. This technology is based on the wireless transmission of information. It has a limited range of operation, so data is transferred from device to device at a distance not exceeding 10 cm. In simpler terms, using NFC gadgets exchange data contactlessly. The main thing is that at this moment they are close to each other.

NFC is an extension of the ISO 14443 standard for contactless cards. This technology combines the interface of a smart card and a reader into one device. Operates at an operating frequency of 13.56 MHz. Supports the minimum time required to establish communication between exchanging devices - no more than 0.1 fractions of a second.

NFC-enabled physical components are very compact in size and have low power consumption. Therefore, the "near field" is actively used even in modest-sized mobile devices. So that users do not have difficulties using NFC in practice (not everyone understands which side to apply the gadget to make the technology work), the location of the chip is often indicated on the device with a special sticker.

How to understand if there is NFC in your gadget?

Due to the small size, communication is used in many gadgets, and not only in phones: for example, in payment terminals; found in cards that are intended for fare payments; present in banking plastic. Now they even began to produce household appliances equipped with “near field” technology, in particular, Smart refrigerators.

But how to understand that NFC is present, for example, in a mobile phone?

First of all, it is worth examining the gadget itself. Often, manufacturers on the body of equipment leave an indication in the form of an emblem resembling antennas. A similar icon will also appear in the pop-up menu mobile phone.

In addition, you can look into the settings by selecting the "Wireless networks" section. Then you need to click on "More" - and if there is an indication of the presence of NFC, then you should check the box next to its icon to activate it.

Applications NFC

Today, there are 3 main industries where “near field communication” is in demand:

1. Contactless payments. To do this, you need to link a bank card to a smartphone, so that later you can only apply the gadget to the payment terminal to debit money from the account. As a result, you will not need to carry payment plastic with you. In addition, this payment method is considered one of the safest, since NFC has a very short range. This means that attackers will not be able to intercept the signal.

Activating this technology for calculations is very simple:

• there must be a card from the bank that supports the "paypass" mode;
• you need to install the appropriate application from the issuing bank;
• after that you need to log in Personal Area"and there select the item" NFC ";
• then a bank card is attached to the back cover of the device so that all information on it can be read by the sensor.

1. Information exchange. To implement this function, you need to install a special application, in particular, "Android Beam". It will allow you to transfer the most different files from one device to another. But do not forget that the transmission speed via NFC is quite slow. Therefore, it is better to send only links, and not the files themselves.
2. Reading labels. To do this, you also need to install a special application. It can be found on the Play Market. As a result, the user gets the opportunity to find out, for example, the composition of food products and their expiration date, only by bringing the gadget with NFC to read the barcode from the goods.

Despite this limited scope, NFC technology has proven to be very convenient. And therefore, it is now being actively introduced into budget gadgets, expanding their list every year.