I and a friend have each just (hours ago) implanted the xMagic chip. The implant contains a high frequency Mifare chip and low frequency T5577 chip. We have no issues reading / writing to the Mifare chip with my proxmark3 Easy, however we are having a hard time reading the low frequency T5577. The proxmark3 LF antenna is working good, I can easily read my door key.
When holding the chip against the antenna and hitting the “lf search”, I get
[-] No known 125/134 kHz tags found!
[=] Couldn’t identify a chipset
My friend’s chip produced the same result.
Positioning: Feels like I tried every position. Having the LF antenna directly over the chip, on the edge, vertically and horizontally - made no apparent difference. My friend helped me to hold the proxmark3, so I do not think a delay is the answer, as reaction time is not of issue.
Thanks for reading. If you have any idea of how to fix it, I would appreciate the help!