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.
this is interesting… so ntag chips are NFC type 2, not NFC type 4 like desfire and smart cards (apex) are… iOS may handle working with those types of chips differently.
Can you post the payload using TagInfo full scan from both your NTAG215 and Apex?
Without using a specific app, iOS will read an NDEF tag and open a URL in the first slot only. I have linked my vCard and this works and will open in the contacts app, as long as you use Safari as your default browser.