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Chip on Apple credit card fails

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Bassman59:

--- Quote from: Halcyon on December 15, 2021, 09:22:35 pm ---
However Apple has come a long way since then and not all of it is positive. Apple have hardly innovated anything in the last decade or two.
--- End quote ---

Clearly you've never used one of the M1- or M1 Pro-based machines.


--- Quote ---Those are just my thoughts. I'm not trying to sway anyone in any direction, this is just how I see it with my eyes.

--- End quote ---

It would help if you opened your eyes.

Halcyon:

--- Quote from: Bassman59 on December 16, 2021, 02:22:43 am ---Clearly you've never used one of the M1- or M1 Pro-based machines.

--- End quote ---

I have two of them sitting right next to me right now. So yes, yes I have. Time will tell how reliable and well built they are...

coppice:
The chips on my Visa cards used to die quite often when visiting EMC labs. I lost 3 or 4 before I realised there was a connection with my lab work, I tended to be doing some pretty extreme discharge testing, but I was still surprised to find the cards in my wallet, in my trouser pocket trouser failing.

Brumby:

--- Quote from: tooki on December 15, 2021, 10:42:45 pm ---I will tell you what is damaging, though: idiot people (cashiers and consumers alike) who think they need to ram a card into a reader like a gorilla, or that a magstripe needs to be blasted past the reader head at supersonic speeds.

--- End quote ---
Speaking of abuse, a couple of times I have seen a customer use the tap'n'go process - wherein they felt the need to press the card into the screen very hard and bending the card itself almost 90ยบ.  It made me wince at what might be happening to the chip inside.   :scared:

mc172:

--- Quote from: coppice on December 16, 2021, 02:48:41 am ---The chips on my Visa cards used to die quite often when visiting EMC labs. I lost 3 or 4 before I realised there was a connection with my lab work, I tended to be doing some pretty extreme discharge testing, but I was still surprised to find the cards in my wallet, in my trouser pocket trouser failing.

--- End quote ---

I don't buy it. I've done a bit of discharge testing myself varying from human body static, to induced current from lightning strikes near CATV/networking gear, all the way up to direct lightning strikes on conductive parts of aircraft and no matter which one you choose, you're never anywhere near it when the "main event" happens for safety reasons, the gap just gets bigger the more exotic you go. These tests have always been conducted inside a Faraday cage where everyone is taken out for a number of reasons - mainly to de-pollute the spectrum but also it's seriously dangerous to be anywhere near it.

I've worked at places that have their own EMC lab, and at places where they've outsourced the EMC testing. Something I've seen across the board is that EMC labs both respect a quiet spectrum and also do not contribute to a noisy one. Put more brutally, running an EMC lab doesn't give you free reign to operate a spark gap transmitter - any credible lab will run discharge tests inside a shielded enclosure for obvious reasons.

If you don't like that response, I've previously put, or should I say dropped, some of my cards (one of which was my everyday Visa card) and my phone into a field with a strength of about 30V/m at 10 GHz and they worked fine afterwards.

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