FP4. NFC transmission chip

The Fairphone 4 (FP4) has an NFC (Near-Field Communication) chip on the inside of the back cover.

P_3A_Back_Cover_Front_GREEN.jpg

 


What's NFC and how to use it

NFC is a wireless technology that enables short-range communication between compatible devices. This technology offers several services, which enables different apps to use the NFC chip to perform various tasks:

  • You can use it to pair Bluetooth devices that support it in an instant. Tap the back of the Fairphone 4 on the device you want to pair. Usually there's an NFC logo where the ship is on a device, so you can line them up.
  • Or - thanks to the support of Google Wallet (formerly Google Pay) - you can turn your Fairphone into a payment device. You pay with your phone! Hold it with its back near the reader of the card machine.
  • NFC technology can also communicate with RFID (Radio-Frequency Identification), in combination with applications that can interpret the RFID data. However, without an app to read out the specific data, the NFC can already help identify if an RFID chip is working or not: when a working RFID chip is identified by the NFC by holding it close to the back of the phone, it is confirmed by a sound.  

 

How to turn the NFC on & off

Through settings

Once you install an app that uses the NFC chip (i.e. a banking app) you must enable the NFC NFC_icon.png on your Fairphone.

To do so, go to Settings → Connected Devices → Connection Preferences → NFC and tap on the toggle on the side to set it to On Toggle_On_icon.png (the toggle is green when enabled).

 

Via the shortcut

There is also a faster way to access the NFC settings:

  1. Swipe down twice, with one finger, from the top of the screen. You will open the pull-down Quick settings menu.
  2. Tap on the NFC icon NFC_icon.png. The Quick settings menu might have several pages; swipe right to see more icons.

You can also edit Edit_icon.png the Quick settings menu to add or remove icons. For more explanations, you can check the article FP4. Edit Quick Settings menu.

 


NFC icon remains in the top bar

In case the NFC the icon remains visible in the top bar after using, check the following:

  1. Make sure that you do not keep a banking or other card (e.g. a public transport card) with an NFC transmitter close to the phone. If that's the case the phone sensor will keep reading it.
  2. It can also be that the app you use to read the NFC remains active. In current Android versions, you have to actively deactivate the app (swiping away is not enough):
    1. Hold the app icon until a text field with "App info" pops up.
    2. Tap on App info
    3. Tap Force stop.
  3. If that doesn't help, check if your app is not misbehaving.

 


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