Title: Copying 125khz RFID Intercom Pit: Issues with Chinese Device & Overwriting Different Types

Hello, I bought a Chinese pit and pit copying device but I don't want to put a signal on a new pit.
I started to search the net and something I saw that there are different types of seeds, even though they look the same, that some can be overwritten others can't. So I guess I have some that can't be overwritten. Then what are they for?


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Maybe give some more details because I don't know if you are looking for a solution to a problem or consolation. What device did you buy (post a link with the specification, photo) was the "seed" (chip) recognized by the reader? Whether the device provided the type/standard of information stored on the chip. Is the chip you want to copy data to writable?

kuba435 wrote:

I bought a Chinese pip and pip copying device but I don't want to put a signal on a new pip.

Because there are programmable chips and non-programmable chips.
what do you have?

Regards

I have this device:

As I wrote, the old pit was read to me, but it does not want to apply to the new one.

Added after 2 [minutes]:

I guess then I must have non-programmable seeds. What are they for?
I bought them on this auction:

https://a.aliexpress.com/8Q09ZGL2b

kuba435 wrote:

I guess then I must have non-programmable seeds. What are they for?

Usually to open the door Seriously, this device (e.g. intercom) remembers the seed, not its, so it doesn't have to be programmable

The first two sentences of the description on this auction say that the chips are not writeable only read: "Please note, EM4100 chip is read only, which is it can not be recorded. If you want to buy a rewritable chip, you have to buy the chip EM4305 tags." So here's your problem.

These RFID tags (transponders) are for 125 kHz but you can have other frequencies and standards, for example:
unique 125kHz standard,
Mifare 13.56 MHz standard.
Please note that others are read-only, which means that they cannot be written, and others are rewritable, although they look identical.

kuba435 wrote:

I guess then I must have non-programmable seeds.
I bought them on this auction:

https://a.aliexpress.com/8Q09ZGL2b

Yes, you need programmable key rings, and in this auction they are non-programmable.

Regards

Approx. When buying these keyrings, I had no idea that they were divided into programmable and non-programmable, so I bought blind.
Out of curiosity: these non-programmable ones are rigidly entered into the system?

Added after 48 [seconds]:

I'm 100% 125khz, because a friend of mine has already copied me

kuba435 wrote:

Out of curiosity: these non-programmable ones are rigidly entered into the system?

It's not like that, they are simply copied, i.e. you had, for example, 1 keychain, and after copying you already have 2 identical keychains. After applying it to the system (e.g. intercom), the system will do what with the old one, i.e. open the door. To sum up, the system does not distinguish which is which, i.e. nothing changes in the system.

Regards

It works in such a way that the tag contains a coil of copper and a chip with a "unique" number, e.g. F6-55BE467F7E4-C3. Approaching it to the antenna induces a small current and activates the chip - it "broadcasts" its number and the reader's antenna receives it - and depending on the solutions in the reader - it compares it with the database of saved numbers (it's super stupid to save these numbers as a whole ) or performs a series of calculations resulting in the so-called checksum which can take many forms, e.g. 4E56; FFF1; DE456A - or it may not even be hexadecimal. And it is it that is stored in memory and then compared.

So the reader doesn't care about what you put on it, but only on the result of the operation, the key component of which is the "unique" number of what you put on it. If, for example, you tell a plush toy (assuming it has a tag sewn in somewhere in the reader's standard) to broadcast the same number as the "pill" previously stored in the reader, then you will be able, for example, to open the door in your block/work with a pink unicorn with glitter.

Some tags consist of an etched chip, which cannot be physically changed - once assigned during production, the number stays with it forever. And there are also tags with a "memory" part that can store programmable variables. Both solutions have advantages and disadvantages, but usually non-programmable iButtons are simply cheaper, smaller and used in situations where the possibility of "reprogramming" them would not be used for anything anyway.

Hello. There are 2 types of "pips": 1) read-only and 2) programming.
The read-only ones are numbered and they are the TK4100 models, while the programming ones are unnumbered and they are the T5557-EM4305.
Regards.

An increasingly common reader is Elkontrol 3000 and has protection against reading copyable cards and keyfobs. It reads only TK4100 and does not respond to T5557 EM4305.

mati505824 wrote:

An increasingly common reader is Elkontrol 3000 and has protection against reading copyable cards and keyfobs. It reads only TK4100 and does not respond to T5557 EM4305.

The Elkontrol 3000 reader only reads Unique ISO11784 cards/tags with a 64-bit UID identification number.

The EM4305 chip is a programmable Unique chip but with a 32-bit UID number, which may be the reason why it is not read by this reader.

The T5557 chip, in turn, requires configuration to be compatible with the Unique standard (programming the appropriate length of the UID code and selecting the modulation), which probably cannot be done with an ordinary cloner/copier, but I'm not sure.

A simple reader of this type itself does not recognize whether a key fob/card is programmable or not because the response of one or the other is exactly the same, so it returns only its unique UID number, so only the compatibility of communication protocols and key length are required.

Elkontrol 3000 series readers are also available in the AN/CL version, which effectively eliminates the "problem" with copyable transponders.

https://www.amazon.pl/Hdliang-czasotliwy-angielskiej-duplikator-zapisywalne/dp/B07XBRJC4M

I bought such a programmer and when I copied the original iButton to a new one from the alarm system set, it did not see it, but when I copied it to a card from the set, it read it. I do not understand why? Someone will suggest something.

naitsyrk wrote:

https://www.amazon.pl/Hdliang-czasotliwy-angielskiej-duplikator-zapisywalne/dp/B07XBRJC4M

I bought such a programmer and when I copied the original iButton to a new one from the alarm system set, it did not see it, but when I copied it to a card from the set, it read it. I do not understand why? Someone will suggest something.

Are you sure this tablet from the alarm kit is writable?

I use the tablet from the programmer kit to save, only data was read from the alarm one and, as I wrote, it was written to the card, but not to the tablet from the kit.

naitsyrk wrote:

I use the tablet from the programmer kit to save, only data was read from the alarm one and, as I wrote, it was written to the card, but not to the tablet from the kit.

It seems that the tablet is not programmable.

You wrote that the tablet was an alarm. It doesn't matter much.
After your additional answer, I checked the kit you bought and you didn't even read what was included.
125MHz cards and 13.56Mhz key rings are listed as usual.
That's why the card works and the key fob doesn't. These are two different systems.

The set includes keychains like this and these - two types.

Maybe it was like that in the auction, but I got 15 bryulkoks, 5 of those you marked and 10 125kHz, as I wrote, the problem was the alarm manipulator, on the other one everything works okay.

Have you ever heard that these Chinese programmers block the possibility of writing with another programmer? I have 3 programmers: both from the post and the third ECPv2 which does not block the possibility of re-writing. It works like this: when I record something on the first Chinese copier, it's ECPv2, and with the second Chinese copier, I don't save anything, and when I save an ECPv2 seed, I can easily save the same seed using the Chinese copier. Just remember that once you save it in Chinese, it won't copy anything else. A chip programmed with a Chinese copier can be saved many times, but only with the copier with which it was programmed for the first time.

...

tijo_tomek wrote:

Are you encountered that these Chinese programmers block the possibility to write with another programmer? I have 3 programmers: both from the post and a third ECPv2 which does not block the possibility to write again. It works like this: if I write something to a seed with the first Chinese copier, I can't write anything with the ECPv2 and the second Chinese copier, and if I write a seed with the ECPv2, I can write such a seed with the Chinese copier without any problem. The only thing to remember is that after saving with the Chinese copier, no other copier will copy anything onto it. A chip programmed with a Chinese copier can be written many times, but only with the copier with which it was programmed the first time.8a5e527171ad

It is a well-known topic that Chinese programmers add something from themselves to the lozenges they program - even the manufacturer of the ECPv2 himself mentions this when receiving the programmer in person.
I have a patent for this circumstance, to unlock such a keyring, turn on the Chinese programmer and despite skipping a keyring read, click save keyring, then the keyring will overwrite itself with zeros and can be overwritten again.

Hello
Will this Chinese device be able to program (copy) such a lozenge into the URMET intercom - https://miwiurmet.pl/kontrola-przejscia/1172-...ucz-breloczek-zblizeniowy-unique-125-khz.html ????

I have two working lozenges but still wanted to have a backup. Please give me a hint.
Regards
Piotr

>>21268017 >>21268017 .
You will not program such a one. She has already been given a number.

>>21268104 .
Thank you for your reply. I just wanted to copy this lozenge. I was given two lozenges by the installer. Now the installer has doped another pastille. The problem is that the previous two work differently than the additional one. The thing is that when I open the intercom with these two older lozenges, the uniphone in the flat doesn't make a sound like when I open with the entry code. And when I use the additional one programmed by the installer, when opening the door the uniphone buzzes as if using the entry code. In general I thought it was impossible because how is it possible that two keyfobs work differently than the third one, but as you can see it is possible. In my case, I wanted a key fob that did not make a sound when the door was opened. I thought it would be possible to copy the code from the two key rings onto the new one with this device. And here a colleague has worried me that this is impossible. So how can I do this?

Pioter.K wrote:

I got two lozenges from the installer. Currently the installer has doped another lozenge. The problem is that the previous two work differently to the additional one. The issue is that when I open the intercom using these two older lozenges, the uniphone in the flat doesn't make a sound like when opening with the entry code. And when I use the additional one programmed by the installer, when opening the door the uniphone buzzes as if using the entry code. In general I thought it was impossible because how is it possible that two key fobs work differently than the third one, but as you can see it is possible.bb86db690

I.e. the first 2 are assigned to the flat and the third is not

Pioter.K wrote:

In my case, I wanted a key fob that does not make a sound when the door is opened. I thought it would be possible to copy the code from the two key fobs onto the new one using this device. And here a colleague has worried me that this is impossible. So how can I do this? bb86db690 .

You can copy this keyring without any problem, only to program the new one you need a keyring programmable. .

Ircys wrote:

.

I.e. the first 2 are assigned to the flat and the third is not

And not the other way around? Because when I open with the code assigned to the flat then there is a sound just like with the additional one.

Ircys wrote:

.
You can copy this key fob without any problem, only to program the new one you need a key fob programmable.

.
I don't understand. I am only referring to making a copy of this key fob which does not cause signalling at the uniphone when using the key fob to open the door. What type of programming does the colleague have in mind?