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12

Can my phone write NFC tags? Your phone can read and write NFC tags, but only if the tags are writable. Many are read-only, or are write-once. Is my phone an NFC chip itself? Yes, your has an NFC chip, in a sense. It is merely a much more advanced one, as it uses the phones processor to do logic and respond. All unpowered NFC tags have a tiny chip that ...


10

According to the answer by Michael Roland on same problem on SO, Play Store opening up after scanning a tag is a clear indication that the tags contain an Android Application Record (AAR). A tag containing an AAR will only start the app referenced in the AAR or will open that app's Play Store page. In order to re-use the tags, you should first format them ...


7

All that host-based card emulation (HCE) does is it enables app authors to support more hardware: that is, devices that don't have the necessary secure element hardware. Developers of apps that previously made contactless transactions using the secure element will now be able to make their apps work on devices that don't have that hardware. However, using ...


6

Can you read RFID without NFC? No you cannot. Can you read QR-Code without a camera? You need the right hardware to read codes. For reading QR-code you need an image of the QR-Code therefore a camera. Without a camera you cannot read QR-Code. To read RFID you need hardware to read the code. The hardware needed is NFC, so without NFC you cannot read RFID.


6

That's not how NFC works. The N stands for "near", and it really means that: the tag has to be touching the back of the phone for it to be read. Sometimes even putting a case on the phone stops it reading NFC tags. If you want something like this, you could buy a Samsung Galaxy Note 2 or later. These phones have a special feature using the phone's stylus (S ...


5

From Google Support: If you're using a Nexus 7 and touching its back to another device, make sure the other device is near the "u" in "nexus" to successfully beam content. "Beam" in this quote is referring to Android Beam, Android's name for NFC content transfer.


5

Looking at a teardown of the new Nexus 7, it looks to be near the center again (here you can see in the photo the NFC is under the inductive charging). iFixit did a pretty good teardown of it here which may give you more detail.


5

With the backing of dotVezz, summing up from the comments: Considering the specifications, this is quite unlikely: range of the NFC signal is limited to a max of 10 cm on "clear view" (see Wikipedia) material with a greater density will reduce this even more: air ~ 0.001 g/cm3 versus Lithium ~ 0.53 g/cm3 makes rawly a 500-times-density difference, so a ...


5

I don't know whether Tasker can meanwhile handle that itself, but it's at least doable with the right plugin. There's e.g. Locale NFC Plugin which could fill this gap. Alternatives exist as well, like a modified version of AnyTag, which is used e.g. in this tutorial. For more examples, tutorials, and possibilities, I recommend a GoogleFu, ahem, search for "...


5

There are 3 NFC modes. Taken directly from official Android Developer - Near Field Communication, Android-powered devices with NFC simultaneously support three main modes of operation: Reader/writer mode, allowing the NFC device to read and/or write passive NFC tags and stickers. P2P mode, allowing the NFC device to exchange data with other NFC peers; this ...


4

While the other two answers are basically correct (you cannot create full clones of current contactless credit cards), there are attack scenarios that permit creating limited clones of EMV-based contactless credit cards. This paper, for instance, describes a method to clone MasterCard PayPass cards by abusing a vulnerability caused by the backwards-...


4

Trigger can, among other things, run Tasker tasks. In any case, it's probably worth while to check out this app if you plan on experimenting with NFC tags.


4

From trying it on two devices: Galaxy S4 Google Play Edition: Lollipop 5.0, with multiple browsers. Once tagged the prompt to choose my browser comes up, and then once chosen opens the URL in the selected browser. The device was factory reset that morning. HTC M7: Stock 4.4 up to date, no reset done, one browser. Opened straight in the browser.


4

Sorry to say this, but it seems to be a long way off before truly turning a NON NFC into NFC phone (as pointed out by Izzy in comments, there have been some efforts but no progress) NFC SD and SIM Cards claims that Both SIM and SD cards can be equipped with NFC chips can be used to enable. Toshiba has come up with NFC SD card last year, but the catch is ...


4

That depends on the app. For using NFC in an app the developer has to declare that in the app's AndroidManifest.xml that is contained it the app (and used by the PlayStore to detect if an app is compatible at all). When using a feature you can declare if it is required=true or not, if it is not required it is considered optional: <uses-feature android:...


3

A more generic answer, not specific to the UK alone: As Ross pointed out, there is not "one specific app to rule them all". That payment stuff is very much vendor-specific – whith "vendor" meaning the company dealing with the payments. Unless several shops/companies join up for a "standard", it might very well be you'd need a separate app for each shop even....


3

Does your credit card have an NFC chip? The phone can read and write NFC data. It is probably activating Android Beam or S Beam.


3

No, the S4 can't read MIFARE Classic cards. The main problem is that NXP does not license the reader-side of its proprietary MIFARE Classic technology (specifically the use of the (broken) Crypto-1 algorithm) to other chip manufacturers. As a result, the Broadcom NFC controller inside the S4 does not support communication with such cards. This alone would ...


3

I've found NFC Tools to be a good app for this. You can write several default tag types, but they also offer a "raw" format, where you specify the mime type/header and content directly. I was able to make a Version 3 vcard with a small PNG image included which worked well on several android devices. Just be sure your vcard format is in spec when you do ...


3

I've been looking at llama. You can set actions based on conditions, and one of the selectable conditions is NFC tag detected. I haven't tried this myself yet, but the program is pretty well thought out. Highly recommended!


3

This is normal1 behavior. The Android NFC stack is known to die when the communication with tags is interrupted during certain communication phases. So what you are experiencing is a poor transmission between the phone and the tag. In those cases where the communication between the phone and the tag drops in the "wrong" moment, the NFC service dies and you ...


3

'Next bus' NFC tags at bus stops here in London attempt to open in a browser - if you've just got one browser, fine, it'll automatically open in that... no need for permissions, logins or a special app. But like everything else on your phone if you've multiple choices for browser, reader, editor... etc., it'll open a 'complete action' dialogue - and continue ...


3

This can be done since Lollipop with the help of Play Services. Go Settings > Security > Trust Agents Enable Smart Lock (Google) Go Settings > Security > Smart Lock > Trusted Device > Add trusted device > NFC https://support.google.com/nexus/answer/6093922?hl=en-GB


3

Here's a source for both Mifare Classic and Mifare Ultralight, published last month Smartphones and Tablets Compatible with NFC Tags


2

if you have an app like NFC Tools or a manual reader/writer, you can add a custom/manual data record and use text/vcard as the content type. For the data field, just paste your vcard data like: BEGIN:VCARD VERSION:2.1 FN:Your Name TEL;CELL:(123) 555-1212 EMAIL;WORK:123@yahoo.com ORG:Company Name TITLE:Your Title URL:google.com URL:fb.com/username URL:...


2

NFC payment support is still pretty hit and miss in the UK. "Cash on Tap" and "Quick Tap" seem to be just pre-pay NFC cards you can load into your phones NFC chip, and not many phones are supported (your HTC One X is not). If you have a BarclayCard, you can get a "Barclaycard PayTag NFC" sticker for your phone which seems like a better solution since it ...


2

Depending on the type of card used in your school, copying is not a simple task: The data is may be cryptographically protected and you need to emulate the UID, an ID which gets transmitted by the card early in the communication process. Here are some tips: At first you need to find out which type of NFC Tag our card is. You can use this app from the Google ...


2

You can check iFixit Moto X Teardown. Looks like it takes up most of the center of the back.


2

This question is a bit of a nonsense. There is no standard pre-authentication step for NFC. The devices just exchange data when they touch. If the software you're using to control what data are transferred requires some kind of authentication step, that's only within that software, so you'd need to use some feature of the software itself to turn that off (e....


2

NFC tags are one type of RFID tags. NFC is a protocol for RFID, which can be understand by more and more devices. You can buy NFC tags on amazon or other websites. What can I do with that tags? You can trigger something when you touch your phone to that tag. For example a NFC tag in your car which turns on Bluetooth, mutes your phone and turns off the lock ...


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