Skip to main content
New
Stack Overflow Jobs powered by Indeed: A job site that puts thousands of tech jobs at your fingertips (U.S. only). Search jobs

Questions tagged [nfc]

Near field communication (NFC) allows wireless data exchange between two NFC devices in close proximity to each other. NFC devices are very small and can, for example, be integrated in cards.

Filter by
Sorted by
Tagged with
20 votes
2 answers
91k views

How to clone an NFC tag (e.g. MIFARE Classic) to an Android device?

I use a MIFARE Classic NFC access card. Is there any way to clone my card on an Android device (e.g. on Samsung Galaxy Nexus or Asus Nexus 7)? Note: this question is not about duplicating an NFC tag ...
user25294's user avatar
  • 201
29 votes
1 answer
39k views

Why does my Galaxy S3 make a noise when I put it down?

Occasionally, when I put my Samsung Galaxy S3 down relatively firmly, it makes a noise that's sort of half way between 'BONG' and 'CLANK'. When it happens I can immediately pick it up and put it down ...
Jez's user avatar
  • 781
16 votes
2 answers
23k views

Why is the NFC in the Galaxy Nexus battery?

Why is the NFC in the Galaxy Nexus embedded in the battery? Wouldn't it make more sense to separate the two things? Is there any hardware advantage of being this way? Disadvantages I can see several,...
neteinstein's user avatar
7 votes
1 answer
2k views

Does NFC enabled phone means the phone has an NFC tag inside?

I would like to clarify what it means when Android phone is a "NFC enabled phone" (example list on RapidNFC). Does this mean the following: The phone can read and write NFC tags? The phone should ...
Nap's user avatar
  • 173
1 vote
1 answer
2k views

NFC battery draining through constant use

Does putting a device that constantly checks/uses NFC affect/drain the battery? One example is Dimple IO which puts NFC buttons on the back of your phone.
Devin Ersoy's user avatar
12 votes
2 answers
59k views

How to emulate a NFC card with an Android phone?

I have installed several "NFC tools" apps, and I am able to read a NFC door card. It seems to be able to duplicate it (when I'll have a blank NFC card) or even write new NFC tags. But I'd like to do ...
Basj's user avatar
  • 779
9 votes
1 answer
41k views

Is it possible to add the NFC to the phone which does not have it?

My phone is a Motorola Moto 2g LTE (xt1072). It is really good phone but there is a one problem, it does not have NFC. Is there any solution, to add NFC to the phone which does not have it – and would ...
FieryCod's user avatar
  • 255
8 votes
1 answer
15k views

How do I Switch off NFC?

My Nexus S alerts me when it is close to my Oyster season ticket. It says New Tag Collected. Unknown tag type. Can I stop it doing this.
justintime's user avatar
8 votes
1 answer
4k views

Do the new NFC options in 4.4 Kitkat allow one to have a combined digital wallet?

The new Android has Host-based Card Emulation built in which takes care of the secure element: https://developer.android.com/guide/topics/connectivity/nfc/hce.html Wondering what it takes to load NFC ...
Jordann Gross's user avatar
6 votes
3 answers
3k views

NFC functionality in Google Nexus S?

How physically close will a tag need to be for the phone to detect a NFC card? (10cm or can it greater) Also can the phone present itself as a NFC tag to other phones? If this is possible is the ...
johnflan's user avatar
  • 163
5 votes
3 answers
21k views

What happens when I tap an NFC tag which contains a URL?

I don't have an NFC 'phone to try it out. A colleague absolutely insists that if you tap an NFC tag which stores a URL then that URL is launched automatically by the operating system. That doesn't ...
Mawg's user avatar
  • 644
5 votes
1 answer
860 views

Is there an app that associates a certain action to an arbitrary NFC tag?

I'm using the NFC Task Launcher for launching actions stored on my own tags. This works fine. What I'm searching for is an app that associates a certain action with an arbitrary tag. An example: my ...
eckes's user avatar
  • 285
3 votes
1 answer
2k views

How to assign an app to an NFC event?

I would like to use NFC tags with NFC Task Launcher or AutomateIt, but every time I scan the tag, I get a popup asking for the application to use (I have a few NFC-related ones). I have a Samsung ...
WoJ's user avatar
  • 581
3 votes
2 answers
5k views

Tapping an NFC tag which contains an URL. (How) can I override the default action (browser launch)?

My previous question established that when a factory reset Android device taps an NFC tag which contain an URL, the operating system launches a browser. Can I prevent that? Is that just a default ...
Mawg's user avatar
  • 644
3 votes
1 answer
3k views

What causes NFC on Nexus 4 to stop working?

Sorry for the vague question title, I am open to suggestions, but I am not sure how else to phrase this. I recently got a new phone; the Nexus 4. When I got it, NFC tags were working fine. They would ...
gnomed's user avatar
  • 371
2 votes
1 answer
8k views

Can I use Google Cardboard with non-NFC phones?

I have recently got a hold of new phone which has 5 inch Full HD screen, so the first thing that I wanted to do is checking out the Google Cardboard VR. But I recently learnt that my phone doesn't ...
user avatar
1 vote
4 answers
6k views

Dialog option "Use by default for this action" or "Always" not displaying for NFC tag

I just completed my Android application which scans NFC tags. When an NFC tag comes near the device, the device tries to show all the apps which can scan the NFC tag. I want it to remember which app ...
user avatar
0 votes
0 answers
278 views

Using root, how to fake nfc support of my phone so I can install apps that requires nfc from the Google Play Store?

This question is an extension of this question where I want to perform the nfc checking part at the embassy. Which files do I need to change in the filesystem using root so I can download apps marked ...
user2284570's user avatar