Well, here's what I want to do.
I read the NFC tag (it's not write protected or anything like that), check the block data in hex, modify it, write the tag with the new data.
Is this possible? What app is capable of doing this?
The tag is Mifare Ultralight.
Related
Hi all,
Wondering if anyone knows of an NFC tag writer that can write tags in bulk? Im needing 250-500 identical tags written very quickly and the Task Launcher can only do one tag at a time.
Had a look around but the tag writers I've seen online only seem to do one at a time.
Any help I'd be grateful!
same problem
Hi, did you find any solution?
I have the same problem.
Tnx
GoToTags Encoder
Hey.
Check out the GoToTags Encoder. It's great for encoding lots of tags with the same data or different data. There is a trial that you can download from the website.
http://gototags.com/docs/display/NFCENCODE/GoToTags+NFC+Encoders
Nfc bulk writer
Hello,
If you need to write tags in Bulk you can try "NFC Bulk Writer" on Play store (I can't post the link).
You can also write different tags. You only have to import the csv with the list of tags to write. :good:
Hi,
I'm looking for a way to read & write on a Mifare Ultralight. I know a couple of applications available on the Play Store allow the possibility to read them, but I didn't find any application allowing me to write back (for example, change the data and save it back).
Is there a way to do so?
Also, is it possible to plug in the Android to my computer to use the NFC capabilities and to code in another language than Java? (some kind of bridge)
Thanks a lot for your support!
jpmonette said:
Hi,
I'm looking for a way to read & write on a Mifare Ultralight. I know a couple of applications available on the Play Store allow the possibility to read them, but I didn't find any application allowing me to write back (for example, change the data and save it back).
Is there a way to do so?
Also, is it possible to plug in the Android to my computer to use the NFC capabilities and to code in another language than Java? (some kind of bridge)
Thanks a lot for your support!
Click to expand...
Click to collapse
Have you tried NXP NFC Writer app? As of now there is no way to use your phone as a USB NFC reader.
Well I have both TagWriter and TagInfo. I can read the content of my NFC chip with TagInfo, but I can't with TagWriter. That's why I'm looking for something else to do the job, but can't find much on the Play Store.
jpmonette said:
Well I have both TagWriter and TagInfo. I can read the content of my NFC chip with TagInfo, but I can't with TagWriter. That's why I'm looking for something else to do the job, but can't find much on the Play Store.
Click to expand...
Click to collapse
Is the tag write locked? Formatting Classic 1K tags to NDEF is part of the standard NFC/NDEF libraries on Android. This allows full write access.
If you're trying to do it without NDEF then you have a different set of issues you'll need to deal with.
Nfc task launcher
Sent from my Nocturnal HOX
krohnjw said:
Is the tag write locked? Formatting Classic 1K tags to NDEF is part of the standard NFC/NDEF libraries on Android. This allows full write access.
If you're trying to do it without NDEF then you have a different set of issues you'll need to deal with.
Click to expand...
Click to collapse
Well, some pages are writable, some others aren't. Still, I can't get it to work with any apps I found (also the one people suggested in here).
i have a galaxy s3, and today i got an infineon myd nfc (SLE 66R32P), but i can't store anything on it. i tried to use the programs nfc retag, nfc task launcher and the nxp tag writer, but none work. i've attached some screenshots.
(the text on the first says: "tag not supported. it's no NDEF-tag or NDEF-formatable tag.)
i know that it is not write-protected. the documentation of the tag says:
documentation
NFC Tag Operation
• Support of NFC Forum™ - Type 2 Tag Operation Specification
• Up to 2048 bytes NFC memory available
– organized in static or dynamic memory structure
– pre-defined memory size for NFC Forum™ Type 2 Tag Operation (up to two 1 kByte sectors)
• Pre-configured NFC memory with empty NDEF message (INITIALIZED state)
Click to expand...
Click to collapse
wergor said:
i have a galaxy s3, and today i got an infineon myd nfc (SLE 66R32P), but i can't store anything on it. i tried to use the programs nfc retag, nfc task launcher and the nxp tag writer, but none work. i've attached some screenshots.
(the text on the first says: "tag not supported. it's no NDEF-tag or NDEF-formatable tag.)
i know that it is not write-protected. the documentation of the tag says:
Click to expand...
Click to collapse
Ok, can only speak for NFC ReTag
the tag specification says : "Pre-configured NFC memory with empty NDEF message (INITIALIZED state)" ---> so it should be already NDEF pre-formated and the NFC ReTag error message "already NDEF-formated" should be correct .... Have you tried to write a special NFC ReTag tag ?
btw. you can pm me in german for further support , if you want ....
ascsa said:
Ok, can only speak for NFC ReTag
the tag specification says : "Pre-configured NFC memory with empty NDEF message (INITIALIZED state)" ---> so it should be already pre-formated and the NFC ReTag error message "already NDEF-formated" should be correct .... Have you tried to write a special NFC ReTag tag ?
btw. you can pm me in german for further support , if you want ....
Click to expand...
Click to collapse
i tried that too, it says "Tag is write protected, blocked or not formated! nothing done! you can try to format the tag if the error persists!"
wergor said:
i tried that too, it says "Tag is write protected, blocked or not formated! nothing done! you can try to format the tag if the error persists!"
Click to expand...
Click to collapse
Hmmm Ok,
unfortunately this is the NFC ReTag message, if the app could not write your tag .... Normally it occurs when the tag is not NDEF formated or you write-protected the tag ... I assume this is a new tag, and you never write-protected it .... ?
Strange, according to the tag specs this tag should work ... unless i missed something obviously ....
EDIT: had a look at the tag documentation, found this on page 7:
Infineon's my-d™ NFC family convinces with fast communication speed and high robustness. Furthermore, the
SLE 66RxxP family can be operated as NFC Forum™ Type 2 Tag.
and this on page 11:
The my-d™ NFC are delivered with pre-configured NFC memory; the Capability Container bytes are programmed
and the data area holds an empty NDEF message; this represents the NFC Forum™ Type 2 Tag INITIALIZED
state within the tag life cycle. With this pre-configuration the my-d™ NFC can be immediately used in NFC
infrastructures.
For further details regarding the NFC initialization of my-d™ NFC please refer to the Data Book and the Application
Note “How to operate my-d™ devices in NFC Forum™ Type 2 Tag infrastructures” available at Chip Card &
Security " Attention: This pre-configuration can be over-written to any value. Initial shipments of the my-d™ NFC
devices have been delivered without this configuration."
So, perhaps you got one of these initial shipment tags .....
ascsa said:
Hmmm Ok,
unfortunately this is the NFC ReTag message, if the app could not write your tag .... Normally it occurs when the tag is not NDEF formated or you write-protected the tag ... I assume this is a new tag, and you never write-protected it .... ?
Strange, according to the tag specs this tag should work ... unless i missed something obviously ....
EDIT: had a look at the tag documentation, found this on page 7:
Infineon's my-d™ NFC family convinces with fast communication speed and high robustness. Furthermore, the
SLE 66RxxP family can be operated as NFC Forum™ Type 2 Tag.
and this on page 11:
The my-d™ NFC are delivered with pre-configured NFC memory; the Capability Container bytes are programmed
and the data area holds an empty NDEF message; this represents the NFC Forum™ Type 2 Tag INITIALIZED
state within the tag life cycle. With this pre-configuration the my-d™ NFC can be immediately used in NFC
infrastructures.
For further details regarding the NFC initialization of my-d™ NFC please refer to the Data Book and the Application
Note “How to operate my-d™ devices in NFC Forum™ Type 2 Tag infrastructures” available at Chip Card &
Security " Attention: This pre-configuration can be over-written to any value. Initial shipments of the my-d™ NFC
devices have been delivered without this configuration."
So, perhaps you got one of these initial shipment tags .....
Click to expand...
Click to collapse
Yes, i think it is one of those... guess i need a nfc reader for pc to initialize the tag...
wergor said:
Yes, i think it is one of those... guess i need a nfc reader for pc to initialize the tag...
Click to expand...
Click to collapse
yep, but I´m not sure if anybody other than the manufacturer can initialize these tags ...
Anyway ,you should be able to use this tag (without initializing) with NFC ReTag ... writing a special NFC ReTag tag is not possible, but you only need that for better dispatching process and everything else should work without writing something to the tag
ascsa said:
yep, but I´m not sure if anybody other than the manufacturer can initialize these tags ...
Anyway ,you should be able to use this tag (without initializing) with NFC ReTag ... writing a special NFC ReTag tag is not possible, but you only need that for better dispatching process and everything else should work without writing something to the tag
Click to expand...
Click to collapse
well, the tag IS initialized, but only with zeros (see screenshots) and not with a NDEF message.
documentation said:
The my-d™ NFC are delivered with pre-configured NFC memory; the Capability Container bytes are programmed
and the data area holds an empty NDEF message; this represents the NFC Forum™ Type 2 Tag INITIALIZED
state within the tag life cycle
Click to expand...
Click to collapse
as i understand it, "initializing" (what i want to do) just means writing any ndef message to the tag (and set those "capability container bytes").
if i had an nfc reader i could test this, i already found a program (for pc) can write NDEF messages to tags. but i somehow doubt that works. it's never that easy maybe android just doesn't support that particular tag...
Is there some way to copy one RFID NFC tag to another blank NFC tag with the SGS3?. I have 2 active NFC tags that I would like to mess around with and see if I can actually copy them and get the same access as my authentic ones offers.
So down to the question. Is it possible to copy the entire contents of an NFC chip and write it to another one with an app, and in that case which one?
bump* I'd like to know as well
copy a tag
"NFC Smart Q supports reading or copying a tag"
I just read this, didn't use this app.
There must be more nfc apps in Google's android shop, doing this trick.
I cannot post links, i'm sure you will find it.
MeX_DK said:
Is there some way to copy one RFID NFC tag to another blank NFC tag with the SGS3?. I have 2 active NFC tags that I would like to mess around with and see if I can actually copy them and get the same access as my authentic ones offers.
So down to the question. Is it possible to copy the entire contents of an NFC chip and write it to another one with an app, and in that case which one?
Click to expand...
Click to collapse
Depends. If it's a tag without any protection, yes.
If it's a tag with crypto, such as most RFID door entry systems, contactless credit cards, subway cards - no, they're intentionally designed to prevent such things. (Specific systems may have been hacked, but in general, these are not copyable.)
"Not protected" means I can edit them as I want right??
So if I can solve the encryption manually than I can change my info on my NFC card with the help of my cellphone.
Is that right??
https://play.google.com/store/apps/details?id=com.skjolberg.nfc.clone2. Try this..... Works for me
Sent from my Nexus 4
carhustler said:
https://play.google.com/store/apps/details?id=com.skjolberg.nfc.clone2. Try this..... Works for me
Sent from my Nexus 4
Click to expand...
Click to collapse
Agreed - may not work for everything, but definitely one of the better tag cloning apps.
Hello,
I am new at nfc so please do not judge me
I have one question:
It is possible to write dokumrent path in nfc tags for example:URL.
but on the path will be security level as:
login
pasword
And after you type your login and password it is automatically opened your dokument.
I was tried to write this way, but after I type login and password the link is not active longer and I have to search manually the document in my data base.
Waiiting fot you answers
For any information I would be thankfull.
P.S. It is possible to do this with my samsung galaxy s3?
Hi,
I am about to develop a mobile apps check -in event using NFC tags.
One of the problem we encounter is about the permanent lock.
We had try the factory reset feature by using Tag Writer application, then apply permanent lock feature on the tag.
As far that we know; once permanent lock is applied, the tag cannot be unlock or even become factory reset.
Why is it that particular tag with permanent lock still can be write with new action and even be cloned?
What is the function of permanent lock on this tags? Can it protect the written data?
May I know what is the constraint of using NFC tags?
Please respond to this, since i am NFC rookie..
Best Regard, Thank You
ummm
if youre asking WHY they have perm write protect on some tags, its because they dont want people rewriting public nfc tags with garbage do they ?
I read somewhere that it actually burns out a track to the writable area, which is why you cant reverse it. but if your app is just for checking in, why are you write locking tags ?
CountParadox said:
ummm
if youre asking WHY they have perm write protect on some tags, its because they dont want people rewriting public nfc tags with garbage do they ?
I read somewhere that it actually burns out a track to the writable area, which is why you cant reverse it. but if your app is just for checking in, why are you write locking tags ?
Click to expand...
Click to collapse
Thank for the heads Up..:good:
Actually why i wanna lock the tag is because we wanna put unique ID in each tags, so other people cannot overwritten it.
In your opinion is it possible to do that?
Ira Effendi said:
Thank for the heads Up..:good:
Actually why i wanna lock the tag is because we wanna put unique ID in each tags, so other people cannot overwritten it.
In your opinion is it possible to do that?
Click to expand...
Click to collapse
each NFC tag already has a unique UID if im not mistaken
why dont you make your app use that ??
then you can use the tags for other things too