xDF2 DESFire EV2 8kB NFC, read/write working for 2 days, then stopped after plane flight

alright for sure, ill get this removed and shipped to you when i can, probably after recovering from the flexdf, made sure it reads well, no need to send me another xdf2 as i will buy a vivokey spark 2 soon instead and get it hopefully in the correction position, happy to be a guinea pig and ive got more chips coming anyway, just tested the flex on the acr, it works, so if the flex fits, works, and works well, ill keep you guys updated on the rest,


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Actually… now I’m paranoid… that flexDF2 looks like a slightly older version and I think I’ve updated my welding techniques for antenna connectors on those since then… so I want to send you a replacement flexDF2 that I have double inspected… keep that one as-is and send it back to me with the xDF2.

Is that ok?

I just bought the flexdf2 on August 20th, have you changed the welding technique within the past 28 days?

No but I can tell from the packaging that it’s from older inventory. It’s ok if you feel that it’s good… I just want to be sure you’re happy and you don’t get a double lemon.

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Psst: say yes!
I mean it can only be better than now.

Sure, but idk I’d say yes because I don’t want to potentially be stabbed twice.
But you’re probably right, it works so…
It’s an amazing offer tho’.

My flexDF2 reads as a ā€œDESfire EV1ā€ using the ACR122. Does that mean I somehow received the incorrect implant or is that normal? :upside_down_face:

the acr122u is not doing the tag identification… whatever software you’re using with it is… and if it’s nfc tools, it sucks at tag identification.

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I have injected the xsiiid blue and next, and ordered a boatload of other stuff. the led is great, instead of refund for the broken xdf2 could u give me free express shipping i will get the xdf2 removed and shipped back soon.

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Yep I believe Michelle had already taken care of you yes?

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cheers mate

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Tuesday 6pm the chip will be removed.

I’m scared my newly installed flexdf2 isn’t reading anymore. I had it reliably reading and put my business card and photo on it. It worked great! Until some point today it stopped working. I only know because I had an opportunity to use it to give out my information and looked dumb because it didn’t work :face_holding_back_tears:. So I’ve spent a few hours trying to get it to work. I’ve been searching around to see if anyone else had luck reviving one……..Any ideas?

I’m going to try some other readers… but my phone reads all of my other implants…. :cry:

The good news is it isn’t fully healed so I could replace it fast if it’s truly broken.

I’ll report back and use the property channels for help. Just wanted to exhaust resources to see if anyone has ideas before I get to cutting.

how newly…

This sounds pretty fresh
it COULD be the issue.

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4 weeks.

I will figure out if it works. It’s alright. It happens, all part of it. Will report back soon!

I can’t scan it with the phone or the flipper. I can scan all 7 other implants. (FlexSecure, xM1, NExT, xSIID, xBT x2, spark 2)

Install location of the FlexDF2. Installed 4 weeks ago. I installed it myself, 5mm install needle, it went in easy, wrapped it up. I tested it before it went in, and it has been working for four weeks.

P.s.

I also thought it was interesting :thinking: that a plane was mentioned in OPs original post, because I fly a lot.

I haven’t tested it since before I flew Monday night. I highly doubt it has anything at all to do with it… just interesting coincidence.

I’m confused. Where did you install thr flexDF2?

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P0

:thinking:
Hmmmm, less likely the issue

HOWEVER

Th P0 is not an ideal location for a Flex Implant, ironically due to all the Flexing that position does.

You have a couple of options available to you; if it was mine, I would be:
removing it
inspecting it,
testing it,
resterlizing it (in some form or another.)
And reinstalling it in another location somewhere between P1 and P4.

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Uh. Yeah. Not a good place for a flex.

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