I don´t have access to * HomeArrow * Samsung Nexus SArrow * Nexus S Themes and AppsArrow * [APP] NXP Launches NFC Tagwriter App for Android 2.3.3
So I post my answer here to help others -> please move it to the wright thread
____________________________________________________________________________
Original Post:
I have an old university ID card that has a mifare classic chip and i think its obviously write-protected. Is it possible to erase this info? and re-write my own?
I'm trying to find a way to auto-launch applications when a certain NFC tag is read. Are there any apps out there that can do this?
I basically want to launch the car home app when I place the phone in the car holder (i'll place the old uni card or some other nfc tag behind the holder)
____________________________________________________________________________
Answer:
Hi Grippa,
the admins didn´t gave me access to NFC developer Forum yet. So here is my answer to your post from NXP Launches NFC Tagwriter App for Android 2.3.3
Regarding to Android Nfc Development Mailing List you can access Mifare 4k Tags "only" with Tags or TagWriter from NXP, old Apps from the Android Market doesn´t work anymore.
Maybe we should find out how to access NFC Tags with other Apps than Tags or TagWriter,
then we can develop our own App. -> for example your idea.
If you want to access a read-only Tag, you have to find out, if it is possible to change the MAD Sector.
Just have a look in the Specifikation of the Tag. For NXP MF1k/4k Tag Type there is a diffrent between the values of the Acces Bits in the Mad Sector. Link to NXP MF1k/4k Tag Type Specification -> look for the diffrences between Table 4 and Table 5.
Hopefully this helps you.
Yours
Alexander / Ubiquitous2011
Hi everybody,
I recently finished working on a new app. It basically allows you to handle Mifare Ultralight tags.
Mifare Ultralight tags are inexpensive tags that are being used world-wide for a number of different tasks: public transportation, events, authentications and so on. The best thing about it (from my wicked point of view) is that it is not encrypted, which means that you can easily read/write those tags (as long as the contents of the tag can be overwritten).
As far as I know, there are some apps available for reading/writing tags, but most of them are either expensive or only allow you to write one word (32 bit) at a time, resulting in a long and boring process when you need to create a tag from scratch (i.e. writing 16 words on it), or editing multiple words.
This is why I came up with UltraManager. If you are in possess of Mifare Ultralight tags and you would like to find out more about their contents, this is the app you need.
At first I thought of only selling the app; but since the number of systems using Mifare Ultralight tags is getting higher as the time goes by, I wanted to allow as many people as possible to put their hands on those systems.
This is why I developed both a Lite and a Pro version. If you are only interested in doing some basic operations with your Mifare Ultralight tag, the Lite version will do just fine. There are no ads, and you will be able to read, edit and write tags.
If you find the app useful, or you need other features, there is a Pro version available as well: many other options are available for this version. The price for the Pro version is € 0.99 ($ 1.36).
The permissions required by both the Lite and the Pro apps are:
Network communication - control Near Field Communication
UltraManager Lite - Google Play
UltraManager Pro - Google Play
Any comment, suggestion and feedback is welcomed.
Thank you all,
Flavio 'darkjoker' Giobergia
Hey i want to try, can u fix the links, couldnt find with search at google play
Sent from my GT-I9500 using Tapatalk
Unfortunately I can't: I haven't sent 10 messages yet
Are you sure you can't find the app? Does your phone support NFC and your android version is >=3.0? Copy and paste the link from this topic, it works! It's only missing the starting "https://" !
Try this link for the apps:
https://play.google.com/store/apps/developer?id=Flavio+Giobergia
Diskb0x said:
Try this link for the apps:
https://play.google.com/store/apps/developer?id=Flavio+Giobergia
Click to expand...
Click to collapse
Thank you Diskb0x I'm turning 10 (posts) soon, in the meantime, thanks one again!
Version 1.1 released: Fixed a minor bug which did not allow tags to be read successfully from foreground dispatch (i.e. when a tag was found and the app was opened using the Activity Chooser, it was not recognized, so one had to scan the tag again to have it read).
The bug affected both the Lite and the Pro version.
Version 1.2.1 released: Some devices keep finding the tag every few seconds; this makes it uneasy to read/write it. This new version should fix the problem by waiting for a tag to be found before reading/writing, if no tag is found when the "Read"/"Write" button is pressed.
Plus, instead of a popup message appearing every time a new tag is found, the actionbar now turns green when a tag is available.
How can you read this tags with NFC or Camera (like QR)? I first time heared for this tags.
ivan123 said:
How can you read this tags with NFC or Camera (like QR)? I first time heared for this tags.
Click to expand...
Click to collapse
These tags can be read using the NFC technology: it is based on the induction of an electrical current in the tag (Maxwell's equations), while the QRs are basically 2-dimensional bar codes: the camera reads the black and white pixels and an app "knows" how to decode them.
The thing they have in common is that both NFC tags and QR codes can store information, and many devices can read them properly; the main difference is that, while a QR code can be read by everybody in possess of the QR code itself, the NFC tags may require some sort of authentication before being able to read them. Also, a QR code can be considered as a "read-only" memory (once it's printed, it can only be read), while NFC tags can usually be both written and read.
(UltraManager Pro) Version 1.3 released:
- Some users reported problems when writing certain tags using certain phones: I have introduced a toggle button: when "ON" the app will use the "transceive" function to write/read the tag, when "OFF", the usual functions are used. If the app was working fine prior this update, keep the toggle "OFF".
- The numbers next to the words now change color based on the word's status (based on the lock bytes value (bytes 02 & 03, word 02)):
. Red: Read-only
. Orange: Partially writable
. Green: Writable
The price is still € 0.99.
From now on, I will likely only support the Pro version (I will only update the Lite version in case of major bugs, but new features won't be added anymore).
_darkjoker_ said:
(UltraManager Pro) Version 1.3 released:
- Some users reported problems when writing certain tags using certain phones: I have introduced a toggle button: when "ON" the app will use the "transceive" function to write/read the tag, when "OFF", the usual functions are used. If the app was working fine prior this update, keep the toggle "OFF".
- The numbers next to the words now change color based on the word's status (based on the lock bytes value (bytes 02 & 03, word 02)):
. Red: Read-only
. Orange: Partially writable
. Green: Writable
The price is still € 0.99.
From now on, I will likely only support the Pro version (I will only update the Lite version in case of major bugs, but new features won't be added anymore).
Click to expand...
Click to collapse
I know its been a while, but i got the pro version a while ago and then forgot about it. What exactly can i do with this? My opal card has a mifare ultralight nfc chip and i was wondering what i could do to it?
I seen a video on youtube where someone had an NFC tag that opened his smart lock when he touched it with his n5. Can anyone give me directions or link to where I can find how to do this? Thanks
Could I somehow use tasker to control my revolv automation to open it?
I've seen this video where somebody uses a Samsung Galaxy S4.
I believe it indeed uses Tasker (if you look closely you can see that it is installed on the phone) to trigger (using Locale NFC Plugin) the phone to communicate with a Z-Wave hub such as Vera (with the AutoVera plugin) to unlock the door.
It doesn't look like an equivalent Tasker plugin is available with the Revolv hub and it can't be done directly yet as I've been told that Yale's NFC enabled dead bolt availability has been delayed. As of now I believe you can only purchase dead bolts from the Real Living series with a Z-Wave radio module. Are expected:
ZigBee radios (about to become available)
NFC (2014/12)
Bluetooth Low Energy (Q1 2015)
Once available NFC and BLE enabled dead bolts should work with ASSA ABLOY's Seos Mobile Access system (available on Google play).
I have an LG G4 and a RFID tag that I want to clone to a new tag or at least store inside the phone (to use the phone as the RFID tag if thats possible).
Using NFC Tools (and ive tried others) I can read the tag but I cannot copy it. It does show the serial number.
Tag Type is ISO 15693 / NXP ICODE SLI
Under Technologies available it shows NfcV with NdefFormatable.
bump!
Hello,
i am new to this forum and hope to post my question in the correct category.
I am looking for an Android Smartphone, which is able to detect NFC Tags on the frontside (display-side) of the device. All devices i tested can detect nfc tags on their back side, but not on the front side?
Does anyone know a device, which can read nfc tags presented on the display?
Background: I would like to use a android smartphone as time tracking device in our small company, where employees should identify themselves with an rfid tag presented on the display side of the smartphone and choose "Go" or "Leave" afterwards.
I hope, that someone can help me and thank you all for your efforts!
Best regards,
Michael