What cards work for conversion to microcard implant?

I’m currently trying to determine if a bank card (N26, Mastercard) is suitable for conversion, but I seem to be unable to identify the chip. When I scan it with NFC Tools, it states that it is an NXP MiFARE Plus. But when I read it with Taginfo, it states that it is ‘unknown chip’, ‘unknown manufacturer’ running Oberthur OS.
i imagine if it truly was a Mifare Plus NXPs own app would probably be able to identify it.

Any ideas?

Side note: maybe it would make sense to make a spreadsheet with all known payment conversions, chips used in the cards, banks etc. Or would be to sensitive of information (also don’t know if it would even be relevant, ex the bank decides to switch their card provider)?

Quick confirmation: candidate for payment conversion can’t have a contact chip, right?

Yes, it cannot.

More info.

Totally, I never use NFC Tools for chip identification, it is unreliable at best.

Check out the conversion service, they are listed on there

and a note

New / Unknown Devices

If you want to convert something that is new or unknown, contact us via the floaty help button at the lower right of this website, or post to our forum in the support category. We will make an educated guess as to whether or not conversion is possible.


The NXP javacards like the ones in the Apex and in that payment card you’re talking about support native MIFARE emulation so they can at least be recognized as something by legacy systems. You’ll see that alot. It’s not MIFARE it’s a smart card. Taginfo on Android might tell you the input capacitance.

Haha no, Taginfo totally shat the bed on this one. There is absolutely no availible information about the chip. And besides, I found out thay it’s not a good candidate for conversion anyway (it has a dual interface chip). Uniquely, one can see the internals because the card is made from transparent plastic.

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An up to date version of TagInfo installed on an Android phone with “Full Scan” enabled gave you absolutely no information about a chip that NFC Tools identified as coming from NXP?

this looks somewhat promising for conversion… if it could be extracted from the plastic without damaging it, the antenna might be able to be measured for inductance. The loopdies there are probably for resistance but it would also change the inductance somewhat too. The wire itself is enamel coated so it would need to be carefully scraped or heated with a soldering iron to “tin” the wire… then it’s still somewhat of a pain in the ass… you can see the actual silicon die in the center is much smaller… but it’s wirebonded to the contact pads and out to the antenna wire… so very difficult to work with… and fragile.

Well, no info that is useful to a layman like me :sweat_smile:

See for yourself

Tells me absolutely fuck-all

I could possibly maybe do that. I have some experience with electronics and working with very very fine things, and if I break it replacement is quite cheap. Where would you suggest I measure the inductance? One thing that worries me is that this card is now several years old and it is possible they updated the design/went with a different chip manufacturer.

I have N26 as well, my card is metal so I cant do anything with it (other than get stopped in airports) but the new transparent ones are very different from that original transparent one. I loved the look of that one. If it helps i could scan the newer cards and see what’s in it.

I would be grateful :slight_smile:

Speaking of grateful



I just imagine you have a gigantic library of 10k+ memes and reaction gifs, fit for any occasion :slight_smile:


Yup, he calls it “Google Images”. How quaint.

Funny. Sadly though, I wouldn’t be surprised if some Trumpistas went and trashed that community center.

Quick question, would toluene work as a solvent (for my purpose of dissolving a bank card)?

Toluene dissoves anything - including your DNA: it’s carcinogenic.

Except that’s never been confirmed. The EPA states that there is insufficient evidence (I got curious when you said that because I have had that stuff forever in my solvent cabinet and I never saw any warnings regarding carcinogenesis in the MSDS). Source or toluene.pdf (162.3 KB) specifically page 3 subsection ‘Cancer risk’