FlexMN Tag Size - Proxmark 3

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Could you share a Taginfo scan? It sounds like it might be configured as an NTAG213.

How to share NFC chip data via TagInfo app

TagInfo is an app made by a chip manufacturing company called NXP. It does a decent job of determining the type of chip it’s talking to and fully scanning any accessible memory into a scan report. It also makes sharing information gathered easy, which makes diagnosing problems or answering questions about specific NFC tags one might have much more efficient. Android iPhone [Sharing microchip implant data with TagInfo] Do note that iOS has some serious limitations still when it …

Also congrats on the LEDs lasting that long