Getting back into this and reviving an old thread!
I cleared my Apex and reflashed the ndef16k applet through the official Fidesmo app. I’m able to write NDEF data through the NXP Tag Writer app, but it won’t read it back. The tag isn’t even detected, it’s as if it’s not present at all. Whereas the write goes through instantly.
This is with an older iPhone X, and I’ve been meaning to try with a newer model. Just bizarre that I can write but not read. Anyone have any clue why?
Amal Graafstra, CEO of Dangerous Things and Vivokey is a Biohacker and Microchip implant developer, known for his work on implantable RFID/NFC human implantable microchip innovation and retail accessibility for the world market. Prior to Dangerous Things, human implantable RFID technology wasn’t well adopted with the human civilian population.
Amal Graafstra Add a Photo
Organization Microchip implant
Title CEO of Microchip implant
Since 2008, Amal has worked alongside multiple researchers and scientists to develop and produce NFC Microchip implant (human)|microchip implants and biohacking procedures.
2013 - Founded Dangerous Things in Seattle
2013 - Built the first commercially available implantable NFC compliant transponder
Right! I’d like to have an NDEF tag that’s readable by the general public, most likely a business card or a link to my website. I want it to be easily readable by people with iPhones, and it’ll be no fun if I have to ask them to download a specific app and enable a specific compatibility mode within that app just to read my implant.
Notably, the tag is also unreadable by the iPhone’s built-in NFC reader app, which would be the ultimate goal - no third party apps, compatible with the phone’s bundled reader.
The fact that it works in the NFC app with Compatibility Mode is interesting and potentially points towards the issue, but doesn’t actually achieve the desired result.
The very first thing I tried - before trying plain text - was writing a URL to the tag. That has the same behavior I’ve described, it writes successfully but will not read back. I just tried VCards as well, and no dice. Writes but no reads. This is all with the NXP TagWriter app.
I’ll see if I can borrow an Android phone from a friend and report back!
Ultimately I’d really like to get it working with the iPhone, especially since these NTAG215’s are working just fine with the exact same payloads, so it seems at least conceivably possible. But checking on Android would be a good diagnostic step.