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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.

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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 ...
0 votes
1 answer
137 views

Smartphone cannot read NFC tag I use to enter my building

I have a tag that I use to enter my building. And I see someone else in my building using his smartphone instead of the tag. I have downloaded the NFC tools app and it doesn't read the tag. It doesn'...
2 votes
1 answer
69 views

Setting a reminder for when you enter your car

Most of us have Android smartphones. At the same time, not all of us may have Android powered(/enabled) cars, but, may have to do something (such, as, check a note in the front drawer, or under the ...
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 ...
0 votes
0 answers
40 views

Google Pay works only when NFC is being turned on

I got S23+ last week and am having problems with Google Pay. When I put the phone to the terminal, nothing happens (NFC is on). After some trial and error, it turns out it works fine but only in the ...
10 votes
2 answers
9k views

How to know if my phone has NFC technology?

I bought the Samsung Galaxy Note phone in Greece, but the store in which I bought the phone brought it directly from Samsung in France (that's what they told me), and the language that the phone had ...
2 votes
0 answers
7k views

Can I use my phone as a MIFARE Classic card?

I use a MIFARE Classic badge to access my building (the system is a French one: VIGIK). I cloned a few tags already (tag to tag) and was wondering if my Galaxy S22+ with Android 13 could act as a tag, ...
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 ...
2 votes
2 answers
3k views

"NFC Service has stopped" dialog repeatedly popping up

Phone: Cubot KingKong 5 Pro Android 11, Security Update July 5. A couple of days ago the phone "crashed" and restarted itself. It does that from time to time, at worst it did it once per ...
1 vote
0 answers
237 views

Disable NFC package on Android 12

From the forum, I got lots of information about package disabling on Android. But none of this works for me. I try block the NFC package on boot: pm disable com.android.nfc svc nfc disable service ...
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 ...
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 ...
2 votes
0 answers
2k views

Want to launch applications/actions when I touch an NFC tag, simply

I have an NFC-capable phone (Nokia G60, Android 12) and a bunch of NFC tags/cards. I would like to launch an app or run an action automatically when I tap my phone to a tag. For example, if I get in ...
7 votes
4 answers
16k views

Is there a way to write a full vCard via NFC?

Is there a way to write a full vCard to a NFC tag? All of the apps I've tried off Google Play seem to only write the email address or other subset. I've tried apps such as NFC Task Launcher, NFC ...
0 votes
0 answers
397 views

Enabling NFC on vivo V2205

So, vivo Y35 (V2205) has an NFC hardware inside. but apps (and settings) ways that 'NFC is not supported' [ [ I am looking for a way to enable NFC (preferably without root, but rooting is fine) ...
3 votes
0 answers
374 views

media control "resume" and "pause" via NFC tag do not work

Problem description I wrote tasks onto NFC tags to play different playlists in a media player app, to control the media player (Vol +/-, next/previous title, pause/resume, quit media player) and to ...
3 votes
2 answers
229 views

Does a special NFC Chip have to be installed before using the phone as a charge card?

When NFC is turned on, can you pay for something at a store, or do you need to install a special chip?
2 votes
1 answer
848 views

Does a store see my email address when I pay with Google Pay (NFC)

Can a store see an email address associated with my Google account (a card has been added to) when I pay with Google Pay via NFC?
1 vote
0 answers
53 views

Does a bank see email address of a Google account if I add a credit card to google pay

If I add a credit card to my Google pay what Google account details is my bank able to see if any?
3 votes
1 answer
341 views

Read the chip info from a built-in NFC chip in mobile phone

As I know, there is a built-in NFC chip at the back of a mobile phone such as Samsung. So I would like to read the built-in chip info from that mobile phone. Is that possible?
0 votes
0 answers
2k views

In which markets does the Xiaomi Redmi 10C have NFC?

I just bought a Redmi 10C from an official Xiaomi Store in Malaysia, but I'm from Australia where we don't really have Xiaomi. There's also not really that much info about them in English. I naïvely ...
1 vote
1 answer
2k views

Can I make NFC payments using Google Pay while in airplane mode?

Can I make NFC payments using Google Pay while in airplane mode, like when I don't have cell phone or wifi service (particularly when travelling)?
2 votes
1 answer
1k views

Why does the YubiKey Neo only use Firefox, not Chrome?

I want to use the YubiKey NEO with Chrome, and when I tap the NFC sensor to the phone, the only app I can use is Firefox. I would like to have SSO work with Chrome, but not sure how they were able to ...
0 votes
0 answers
967 views

Load URL/URI from NFC tag automatically

I have a Redmi Note 8 Pro which can read NFC tags, and I wrote an NFC tag with a custom URI for an app (Obsidian). The custom URI makes the app to open and write something inside it. The "problem&...
0 votes
1 answer
3k views

How to drive Philips Hue lighting with NFC tags

Recently I came to use my NFC tags again. Wondering how I can use my NFC tags to automatize chores like: Turn the light on at noon (Alexa/Philips Hue) Turn the light off at midnight In essence I ...
0 votes
0 answers
34 views

Do contactless payments work on Android 4x these days?

I've seen info that current version of Google Pay requires Android 5 or higher. Is it possible to install and use any application like Google Pay on Android 4.x (with NFC)?
1 vote
1 answer
1k views

Can Android devices with NFC be used as POS terminals for EMV Chip-and-pin cards?

I know that Square, for instance, makes payment card readers you can attach to phones in order to make transactions using the mag strip, and they're soon to release a new card reader designed for EMV ...
0 votes
2 answers
1k views

How to get data (text and pictures) from server via http get request using a NFC Tag (NFC tools)?

On my Android phone I use NFC Tools pro and I want to do following: get text from my server (i.e. to show it in a popup or text-to-speech) get picture from my server and show it I found the "HTTP ...
3 votes
0 answers
662 views

After I installed an app, the phone now scans NFC every time I unlock the screen (Android 12)

I did not know that an App can modify system behavior like this. I have phone always on silent. I installed "Xiaomi Wear". During installation in Play Store, the phone made a short vibration....
0 votes
1 answer
2k views

Samsung Galaxy emitting constant beeping sound

My Galaxy (A8) is emitting a constant beeping sound every few seconds. I tried the following, per various online suggestions: Wiping the cache (by entering into recovery mode) Closing all ...
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 ...
4 votes
3 answers
7k views

Can I encode an NFC tag to send HTTP POST data?

Can I encode an NFC tag to send HTTP POST data? Or can I only use HTTP GET? I have Googled extensively, but can't seem to find an answer (which, I suppose, implies that it is HTTP GET only, but I ...
0 votes
0 answers
92 views

Google Pay is nowhere to be found

The situation is pretty strange: Google Play store tells me that Google Pay is not compatible with my device (Samsung S10), but I know it is installed and I have used it in the past. When I click on ...
1 vote
0 answers
138 views

Storing NFC credit card near NFC phone

I have a quick question about NFC on Android devices. Assume that I have a device set-up for Google Pay, i.e. I added a credit card. I also have said credit card in my wallet and it is capable of NFC ...
0 votes
0 answers
768 views

NFC tags to execute commands

I would like to know if there is such a possibility to create NFC tag and then use it to execute complex commands on a tablet, for example opening a specific application or changing a certain system ...
3 votes
1 answer
534 views

Does play store filter out NFC apps for phones which do not have NFC?

I'm developing an Android app based on NFC technology. So when my app goes live on the play store, will the app be displayed for people having non-NFC phones? Will they be shown a message like "...
2 votes
0 answers
276 views

NFC: Spotify URIs open app, not specified resource

My goal is to program NFC tags in such a way, that Spotify starts playing a specific track/album/playlist. But after writing a Spotify URI (e.g. spotify:track:6rqhFgbbKwnb9MLmUQDhG6) to my tag, it ...
0 votes
0 answers
3k views

How to use NFC Tools to write a 540 byte file to NFC Ntag 215?

It seems Tagmo is a tool to write NFC tags, but when I searched on the Google Play Store, NFC Tools came out, not Tagmo (and it has a 4.4 out of 5 rating), so I tried using it to write a .bin file ...
2 votes
0 answers
2k views

Using USB NFC reader as native from Android Emulator

I'm testing an Android app that uses NFC. However, my actual testing phone does not have NFC capabilities built-in. What I do have is a USB NFC reader for Windows. Is there a way I can open my app on ...
1 vote
1 answer
1k views

Open Google Maps to location with NFC tag

I have an NFC tag containing only one record, in the format of geo: [latitude],[longitude], and when I tap it to my phone the 2 options are the Waze app and Google Maps. Waze opens up to those ...
1 vote
1 answer
4k views

Do wireless charging adapters interfere with NFC?

I've just got a Huawei P30 (standard, not Pro or Lite) and realised it doesn't feature NFC - with no less than 4 wireless chargers in my house and 2 in my office. But I use Google Pay all the time - ...
2 votes
2 answers
5k views

NFC on S4 doesn't work at all

I have an S4 with which I try the Yubikey Neo with NFC on. I also tried another tag but I can't get any response from the phone whatsoever. Not even a beep. NFC is turned on for sure. I bought an (...
0 votes
0 answers
139 views

Is there a way to activate NFC during initial phone setup?

My mdm (Ivanti/Landesk) requires to deploy an APK through NFC during the initial phone setup (and only during this setup, where you need to set the langage, time zone, google account, etc.) . This is ...
1 vote
1 answer
223 views

Truncated text from NFC tag

The NTAG216 can hold 800+ bytes of information. But when I scan it with my Samsung S4, it will only show 5 lines of text followed by an ellipses (...) which is at most about 270 bytes. I've tried it ...
2 votes
1 answer
2k views

Open Image-link from NFC Tag

I have a NFC-Tag (FeliCa), where I store a URL to an image. (something like https://www.google.de/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png for example). This Tag is emulated by a ...
1 vote
1 answer
2k views

Can an apk file be written to any type of NFC tag

Is it possible to write an apk file to a NFC tag for it to be downloaded when a user desires? bWe are trying to create a solution in which our reps in the field can simply turn on NFC in specific ...
1 vote
1 answer
452 views

How to use Glase on a rooted Android device?

How can I use the Tap and Pay payment app Glase (formerly SEQR) on a device which has been rooted using Magisk?
1 vote
0 answers
204 views

Can I emulate my NFC credit/bankcard with my phone?

down vote favorite Samsung Pay, Google Pay, Apple Pay or anything else isn't enabled in my country, but I do know that my card is using NFC. From what I have read there is a possibility that it can't ...
1 vote
1 answer
691 views

Device fails to install provisioning app

I'm trying to provision a Huawei Y6 (MYA-L11) with a custom Device Owner app via NFC after a factory reset. However, once it has downloaded the admin app, I get a message box: "Oops! Couldn't install ...
0 votes
2 answers
896 views

Firefox hijacks YubiKey NFC

I'm using a YubiKey Neo configured as an one-time-password generator. I'd like to use it with the YubiClip app but every time I pass it next to my phone, Firefox (my default browser) opens with a ...