Issues with work fob

Hi!

Can anyone help me with this problem! I got a Xmagic in my hand. The HF have been troubeling after an MRI, but thats another thing.

A while ago I got access to another building at work. Everywhere else they use LF, but not in the new building. They installed HF readers there. Therefor I got a new tag with both lf and hf. I cloned the HF chip over to my implant. Tested out the chip and it worked for a day, but suddenly it stopped working. I’ve made dump-files of both of the chips and made a comparesment (with help of ai). The only difference between the tags are the SAK number. (I started this post a while ago, so I really don’t remember what).

Why is it that my clone won’t work for more than a couple of times? It’s identical to my original fob.

Thanks in advance!
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Wait so youve been having issues with hf after an mri? Are you sure its not related?

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How long after an MRI?

I seem to remember reading something about the ferrite core getting saturated by the MRI and performance returning over the following weeks as the magnetism sort of bleeds off… let me see if I can find it again…

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It’s been approximately 1 year since the MRI.

I don’t know what the issue could be? I got the tip to have the implant close to a reader because that could maybe help with the ferrite core, but don’t know if that’s the issue or what.

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Some extra info here…links to follow

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Okay let’s clarify some things.

First off the clone is not identical because the SAK is different. Correct?

Next, please confirm when you checked the clone and the source tag memory? My hunch is you’re using your implant and your original tag and the system is updating the memory content every few uses, and your clone no longer matches your original tag. Some Yale locks do this, for example.

Try cloning, try getting the SAK to match, and then try only using your xMagic for awhile?

How do I do this? Tried with your guide on cloning with pm3. Is there anything else I can do except from your tutorial?

my ears are burning

SAK Swapping Gist

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Burn baby burn!

Thanks for the help tho! Gave me more understanding. I’m completely noob with this, so from what I understood the sak number wasn’t important or the “key” or what to call it.

But again, thanks!

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