Help with RFID implant

Hi guys basically what I’ve done is I’ve bought a RFID chip implant and I’m trying to rewrite the implant code and it won’t let me do it it will let me read it though it will let me read it and then re-write the same code but when I try and write a different code to it wont work any help guys it would be appreciated

  • What implant?
  • Is it installed or still in the syringe?
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besides @turbo2ltr’s questions…

It’s worth noting that it might not be “allowing you to write the same number”. it might be not letting you write at all, but then you keep seeing the same ID.

Without any extra info, I could guess any of the above:

  • white cloner might not be able to write (we’ve seen plenty of those)

  • your chip might need a specific backdoor command to change the UID, therefore would need a more specialised device to write to it, such as a Proxmark

  • Your chip has a locked UID which cannot be changed

  • Your chip can only contain a smaller UID length than this “other number” you are writing to it

Knowing which chip is it might rule a couple of those possibilities out! :wink:


The other guys have answered you with the same thing I would say

The only reason I am jumping is is, giving you the benefit of the doubt, and assuming you know what you are doing ( The white cloner is not doing you any favours there :wink: )

OKAYYYY, This is going to sound like I am puling the piss, but bear with me, Check out this post, there is probably some answers in here for you

Basically, you probably shouldn’t have used a white cloner, but that horse has bolted :horse_racing:

This will write the “standard” 51243648 password
This will write the “standard” AA55BBBB password

AT least you have the red background cloner! so that is a good thing could be worse!

You have a couple of options:-

the password is 51243648
Grab a Blue Cloner, it uses the same password so as long as you are trying to read / write EM, HID or AWID you SHOULD be fine

And check this thread out


Grab a Proxmark3 and remove the password

Your Syntax may differ, my Proxmark is running older firmware, but yours will “Talk” you through it

Remove the 51243648 password

This is outside the purpose of the review, but PM3 commands for a quick reference:-
To remove the forced password and write a new EM410x ID
This is the method I used

lf t55xx read b 0 p 51243648 o

lf t55xx wipe

lf t55 trace

lf t55xx write b 0 d 00107060 p 51243648

lf t55xx write b 7 d 00000000

lf em 410x_write ********** 1

********** = your chosen EM410x UID

Remove the AA55BBBB password

lf t55xx read b 0 p 51243648 o

lf t55xx wipe

lf t55 trace

lf t55xx write b 0 d 00148041 p AA55BBBB {Thanks @TomHarkness}

lf t55xx write b 7 d 00000000

lf em 410x_write ********** 1

********** = your chosen EM410x UID

Then, forever more, use only your Proxmark to read and write your future products

AFTER THAT, Video yourself setting fire :fire: to or smashing :hammer: the white cloner and post it here

Walk these halls telling people of the perils of using the White cloner


EM4102 125kHz Does that help ?

Is that your chip, or the one you are trying to emulate? (for instance, using a T5577 chip implant)

Or better yet, where did you got it, if you don’t mind disclosing.

I ask because those chips “as they come” (i.e. not for implant use) will require a password to be able to be written to, which in many cases is not even a given option.

Hence why many people either hack them, or use special versions of the chips which you can program the UID.

Depending on which is the version, you may be able to “lock” yourself when attempting to write.

That’s why some chips, like most that @amal sets up, come adjusted in a way that you can’t lock it. but this is not always the case.

If it’s locked, probably the methods that @Pilgrimsmaster posted should help you out.


Haha, cute but not quite what we were after
You are better off editing your last post than making a new one

If you do that within now 4 minutes, it will just be deleted, otherwise youll have to wait 24 hours

My chip that’s implanted it’s from Bioteq a uk company

Firstly I am glad you have Found Dangerous Things

This community will gladly help you out.

This is not a form of Confirmation bias so without getting all …hmmmm… BioTeq…ummmm… anyway

Some of BioTeqs wording is misleading, and some other things I take issue with, but whatever…More importantly
I don’t know specifically about their products or testing they have carried out, so :man_shrugging:
This is the standard you should be looking for:-

Here’s what I would do!
Return the White cloner to BioTeq
All future implants, Find another seller, It doesn’t have to be Dangerous Things ( But really should) or one of their affiliates like KSEC who are also in the UK.

Do yourself a favour and take your cloner refund and buy yourself a Proxmark.

Most people here avoid the white cloner so not too many people are super knowledgeable on its fault finding.

Also not to fob you off, but it is BioTeqs product they offer so they should be your first port of call for support. They should be the product experts and of more use to you attest initially.
Either way mate let us know how you go with them, after that we will glady try and help you out.

For others wondering

This is a dirty little service on offer that speaks for itself



Those prices are outrageous


If it is actually an EM4102, there’s your answer. They can not have their UID change so you will never be able to change its ID regardless of what cloner you buy.

Dangerous Things xEM implants are T5577 chips that ship in a configuration that emulates an EM4102 to make it compatible with systems using EM4102 tags, but the T5577 is programmable so you can change the ID.

So either BioTeq are selling non programmable chips (this seems to be the case), or they are lying on that page about what the implant is (not a good thing for devices going in peoples bodies).

Did some more looking at their website, and BioTeq are one to avoid…

RFID BioGlass Impant Kit.pdf (2.2 MB)

Highlighted some interesting parts in the PDF attachment, all the sections in the red box do not show anything when clicked. No details on warranty or manufacturing process.

Also of concern, they sell an implanted device and service, then at a cheaper price a ‘use your own installer’ pack - but have this on the footer of their website.

Pay our inflated prices or we will refuse to support our own products… yeah, thats a big no from me. I understand they can’t warranty the install, but to say you offer no support is a big NO DEAL for anything going in my hand.

Although, to their credit, they do sell one product I wish @amal sold (hint-hint, can’t let BioTeq beat you at your own game :wink: ).-


Forgive me mate but couldn’t you just buy them off Ali?

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Haha, Thanks @Compgeek for unveiling my

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Whenever I see posts about that company they’re never good.

@Matrixman34 hopefully you can get things resolved with them if you’ve been misold/mislead.

If you’re wanting to emulate from what I understand the xEM by DT is the one you’re after. Let me know if this is more suited

Drop us an email and we might be able to work something out. As you know the UK is in lockdown so can’t arrange a free install but a free xEM replacement implant or a deal on another item could be possible.


No need to forgive, you’re entirely correct!

I just like the idea of a full service one stop shop, its not a deal breaker at all but i think it would be a good thing to have test implants along the test cards and field testers in the store. Especially when performance can be so variable with Ali chips, having a known DT chip on a card available for purchase would be a nice addition. I’m sure its not economical though, since the chips are delivered in syringes I’m guessing @amal’s cost for one on a card would only be cheaper by the price of a sterile field and a band aid.

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So one of the ongoing and historical issues is people implanting non-sterile and unsafe implants. Even the xLED original field testers let alone random stuff off Ali.

We’ve talked about this previously with DT/Amal and realistically it’s not safe to do so and would mean ruining one pre-sterile implant to take apart from each one.

One better solution was having RFID cards along side implants. For example


Perhaps something like the new keyring field detectors could be looked at? Difficult enough to extract that it adds protection but also still allows people to test with an IC and cylindrical antenna? Not sure its worth it, but it seems people have no problem with getting actually dangerous non-implantable implant kits as it is, if people order test ones off Ali instead and they come in a syringe I imagine it’s tempting for some people to just hope for the best and test in vivo.

I won’t beat the dead horse here… (although there is a reason why I buy from DT even living on UK) :wink:

The main issue here is that, unless you got a niche product from BioTeq, their EM4102 implant falls within the “UID set at factory”, which won’t allow you to change it.
This is afaik and I’m not an expert on their stuff, so I might be wrong.

This doesn’t mean the implant isn’t useful, just that you must do the other way around:

Instead of changing your implant to match a tag that’s within a system, you need to add your implant into the system.

This is the whole concept behind RFID tags and implants.

Unfortunately most places have system managers who are absolutely incapable of grasping this whole concept, so they just tell you “no”… This really drives me nuts.
(almost as much as no dev using the anti-colision mechanisms we have)

I also can’t stress this enough:

Although, if you can add your tag to the system, then you would have no use for a Proxmark.

They expressly refuse to provide support unless you paid them extra for the install.

Gladly KSEC is also within UK and lives up to DT’s standard of epic support!


From the ceo him self