In the last article, it was not possible to reveal all the options for opening an intercom, and I had to write a second article in which we will consider other intercom models. We will help you get to your entrance if you accidentally forgot your keys at work or at home.

In this article, we will consider the following options for opening intercoms:

1. Open intercom Laskomex AO-3000.
2. Open intercom System Master.
3 . Open intercom Tehkom.
4 . Open intercom Berkut LS2001.
5. Open intercom Polis.
6. Open the Keyman intercom.
7. Open Intercoms NFC.

How to open the intercom Laskomex AO-3000?

If you are wondering how to open a Laskomex intercom, then you should know that Laskomex 3000 is a cipher lock that can be opened without specialized knowledge, like some other intercoms with a similar system. To access the system parameters of the lock, you need to:

Four times press the keys with the image of the key and “0” in turn;
. enter the password pre-set by the manufacturer to enter the system parameters (for all standard) - 6666 (on the screen there will be “SSSS” - indication of entering the setup menu);
. when the “P-” icon is displayed, enter the number 8 (setting code to open the door or to service the power system of the cipher lock).

If you carry out such manipulations and block the door with this lock, then within 45 seconds you will have access to the house.

How to open intercom Stroy Master?

Sometimes it happens that the masters who install intercoms change the standard password from the manufacturer and then it will be quite difficult to get into the room, but if this does not happen, then you should enter the following combinations in turn:

1234, 6767, 3535, 9999, 12345, 0000, 11639. Maybe today we were lucky, and one of the options did come up, then press “B”, open the door and after that press “C” (so that the system continues to work in the standard mode).

How to open a Techcom intercom?

In order to open the doors with intercoms of this manufacturer, you need to hold down in turn (without releasing the keys) the numbers 1 6 0 (possibly 2 5 8 in another case *) and release in the same sequence, but vice versa - 0 6 1 (or 8 5 2 respectively*). A beep will sound and the “----” indicator will flash, which will indicate that the password “4321” (possibly 1234 *) is ready to be entered (the standard code for this brand). Next, press "B", then "3" and again "B" - the door will be opened.

*- for new version firmware software intercom.

How to open intercom Berkut LS2001?

This version of intercoms inherited the bypass paths from MetaKom and Tsifral. In order for the door to open, you must:

. “1” - “key” - “5702”
. “100” - “key” - “7272” or “7273” (the first variation of the code opens entrances with apartments from 1 to 127, and the second - apartments from 128 to 256)

How to open intercom Polis?

He is an intercom brand Reinmann 2000 (it was like this until 2001, after it was improved). Hacks easily, but a little long. To do this, enter: “key” - “987654” - “123456”. The letter “P” will appear on the display, press the number “8” and the entrance will open for 45 seconds.

It is possible that this intercom is a new type of Polis-51TM or Polis-52TM (both without a digital display), then you need to know the individual code. If you don’t have one, it’s easier to pull the door sharply, use a special mechanical key, or close the lock electronics with an ordinary shocker (there is a chance that the door will completely block and then it can only be opened with the help of the installer).

How to open a Keyman intercom?

One of the safest intercoms in terms of bypassing a special code or identifier. The probability of hacking such an intercom is extremely small - approximately 5%. But still there is a chance that when installing it, the masters were too lazy / forgot / deliberately left factory codes and identifiers. To access the door, we carry out the following manipulations with the codes:

. “Call” - code “100” - password “789” - sound signal - standard settings password “123456” - number “8”
. “Call” - “170862” - sound signal - number “0”.

It is necessary to mention the reliability of the security software of such intercoms, as they are perfectly protected. Their firmware will block further actions leading to unauthorized access to the intercom settings and to the subsequent opening of the door.

How to open NFC intercoms?

There are intercoms that work using NearFieldCommunication, NFC technology (“near field communication”, literally translated). Intercoms based on the reception - transmission of a network signal (data packet) can only be opened by the operator of the main control unit - he is the owner of the apartment or the concierge.

When a signal is received from the card or key receiving panel to the control module, the signal processing server determines whether the incoming request to open the door is valid, and only then unlocks the door lock. This means that it is possible to hack them only from the inside and with a computer or tablet / smartphone. Such intercoms function thanks to IP telephony: it will not work at all to open the door using a code / password / sequence of manipulations with numbers and auxiliary keys.

Video. How to open the intercom Berkut LS2001?

Video. How to open a Keyman intercom?

Everyone knows that utility workers open the intercoms of a huge number of houses without carrying a huge bag with the keys to all these devices. They use the entrance to the programming mode, in which opening the door is far from the most difficult function.

Manufacturers do not pay due attention to the complexity of access to the program mode, as a result of which an ordinary person who does not have special professional skills in the field of programming electronic devices, it becomes possible to carry out keyless access to the entrances of residential buildings equipped with intercoms.

Intercom Opening Visit

With unchanged factory settings, there are 4 code options: *#423; 12#345; 67#890; *#4230.

To access using the service menu: #999. After two intermittent signals, enter: 1234 (standard), in case of an error, enter: 0000; 9999; 3535; 12345; 6767. An access signal is one sound, a refusal signal is two sounds.
A way to access the service menu using three buttons. Press "2", (wait a couple of seconds), "#" (a couple more seconds), "3535" - then the door opens.
After pressing "*" - the program mode is exited.

Opening of the intercom METAKOM

Three ways to open METAKOM intercoms:

1) Pressing the call button, then dial the number of the first apartment in the entrance and again press the call button. The letters COD should appear on the display, we dial numbers - 5702.
2) 65535 - call - 1234 - 8.
3) call - 1234 - 6 - call - 4568.

Opening the intercom Cyfral

Two opening options:

1) If there is a mark "M" on the intercom.
Press: 07054, or - call - 41, or - call - 1410.
2) If there are three-digit apartment numbers.
Call - apartment number (100, 200) - call - 2323; 7272; 7273 (one of 3 numbers).

Opening the intercom Eltis

Two quick and easy options:

Call - 2323;
The call is 7273.

Opening of intercom FACTORIAL

Press the numbers: 000000; 123456, in case of failure, press - 5 - 180180 - call - 4 call.

Recently, they have been widely used. These devices act as a pass system, allowing only those with the appropriate key to enter the home. There are cases when the key is forgotten at home, lost or simply fails. Naturally, the question arises how to get into the house in this case.

There are many ways to open the door using special codes or universal keys. Despite the fact that there are such ways to open doors, many users are interested in whether it is possible to open the intercom with a telephone.

It turns out that such a possibility really exists and is realized through special technology called NFC. Below we will consider the main aspects of this wireless technology and under what conditions it is possible to open an intercom using NFC.

What is NFC technology

NFC is wireless technology, with which you can communicate between two devices. NFC has become a continuation of the well-known contactless RFID data exchange technology.

The difference is that RFID tags can be read from a distance of several meters, while NFC tags can only be read from a distance of no more than 10 cm.

When transmitting data using this technology, an initiating device and a passive module are used. The device generates a magnetic field that affects the passive network by transmitting data.

To transfer data using NFC technology, a special coding is used, which differs in the modulation index, which depends on the value of the data exchange rate. It is important that NFC devices can support two processes in parallel - transmit and receive data.

Due to this, such devices can monitor the magnetic field and detect contradictions if the received signal does not meet the required parameters. Such capabilities of NFC technology are actively used for contactless reading. important information in various systems.

There are three main ones:

1. Emulation of cards and other access elements for contactless identification of an object. This method is actively used to emulate plastic cards on a smartphone, which allows you to make contactless payments using your phone. The data that is read from the phone is not stored in its memory, but in a special chip that is supported by the phone system. To be able to emulate the card, the phone must support NFC technology. In addition to card emulation, this technology allows you to copy the intercom key to NFC phone and open intercom locks with it.
2. The second area of ​​using NFC technology involves the use of devices in the form of scanners of the corresponding NFC tags, which will allow access to various data. Recently, this kind of labels have been intensively used instead of conventional barcodes.
3. The third option for using NFC technology is called "Peer-to-Peer". It provides for the possibility of data exchange between two devices. For example, you can support wireless communication between two devices that have NFC tags.

Is it possible to open an intercom with a smartphone with NFC

To look for the possibility of how to open an intercom using a phone, it is important to figure out whether such a possibility exists technically. Firstly, it is necessary that the installed intercom provides for the possibility of using NFC tags to control its operation.

These must be special devices that support the appropriate NFC-reading information technology that allows access to the object. NFC intercoms can only be opened using the appropriate tags; in this case, it will not be possible to gain access using passwords or special codes.

Secondly, not every phone or smartphone is suitable for working with this type of intercoms. The phone must also support NFC technology in order to be able to communicate with the intercom electronic module. To record labels on the phone, you should use the appropriate software that is suitable for operating system installed on your smartphone.

Conclusion

If you want to control access to your home through your mobile device and store the intercom key in your smartphone, you should choose the intercom that supports NFC technology. You should also make sure that the NFC tag with the intercom key code can be written to the phone. Then you do not have to carry the keys to the intercom with you, but you can get by with a smartphone that is always at hand.

Video: We open the entrance door with a phone

In the section on the question How to open an intercom using a mobile phone? given by the author RuBu_bybyPaD3e the best answer is Theoretically, if the intercom is opened with an electronic key, you can try to call a person on his mobile phone so that he brings electronic key to your phone, and at this time you must attach your phone (carefully) to the intercom.
I read on the internet that in this way you can open a car if you forgot or lost the key fob to turn off the alarm. Honestly, I haven't tried it myself.

Answer from Izya Kulman[guru]
Swing harder and throw it at the door - if you're lucky, then the detonation of the battery will blow the door out. If not, the door will bend from the impact of the phone.

Answer from Hello![guru]
Wait until you get a call on your mobile from the intercom.

Answer from Ivan Grinishak[guru]
Easily! You need to dial the number of a friend whose door to the entrance does not "let you in", and ask him to open it for you. Believe it or not... it helps sometimes!

Answer from User deleted[newbie]
Call the one you came to! 🙂

Answer from JIN[guru]
call the owners!

Answer from Yörzh[guru]
You need to come up, get a phone, bring it to the intercom, give your name, surname, gender, age, passport details, purpose of the visit and wait ....

Answer from Anatoly Pletnev[expert]
You can, of course, write down the digital code from the tochmemory key to your mobile phone and connect it to the intercom using an adapter, but you need to know the technical password easier different models mine

Answer from GASHEK[newbie]
make a bomb and a cell phone as a detonator... stick it all to the door and blow it up! I always go home like this..!

Answer from VIP[guru]
call the cops and say that there is a bomb in this entrance. When they arrive, the door will automatically open. You will go with them. They will ask about the bomb, and you will sigh as if nothing had happened - "what bomb?", I just wanted to go home.

Answer from Yergey Gromov[newbie]
what kind of nonsense you know how to answer

Answer from Volyanchik :-))[newbie]
NFC alone is not enough to use your phone as a pass. The phone must have a Secure Element chip that can emulate MIFARE cards, on the basis of which (most likely) your access system is organized. Unfortunately, in the S5 model, the Secure Element chip was only available in the Australian lot.
If there is such a chip in the phone, then the security service of your office can register the phone as a card (they will attach the phone instead of the card when creating a new profile in the system). And, if your office has modern pass readers, then you can open the doors with the touch of your phone.

Modern technologies have stepped far forward in terms of data transmission. Contactless Internet, wireless headphones and even wireless charger. But this is not the limit. Today, the segment of technologies implemented on the basis of NFC tags is actively developing. Such systems have been used for a long time, in intercoms, navigation devices for various vehicles, in trade or production, and especially in the banking sector. But they gained particular popularity only when it became possible to use a smartphone as an NFC receiver or transmitter. In particular, this allows you to control bank cards, and replace most e-passes with special program installed on the phone. And if everything is more or less clear with bank cards - it's only a matter of time when they will be replaced by phones, then with other systems everything is somewhat more complicated. For example, already now many people are wondering whether it is possible to open an intercom with an NFC phone? Such a possibility does exist. True, it is only at the stage of testing and development by a separate group of initiative amateurs modern technology. In theory, everything looks quite simple:

1. The electronic tag, which is also the key for the intercom, is read by the phone. The device determines the modulation of the magnetic signal, and remembers its frequency.
2. A key emulation is created on the phone, which completely repeats its operating parameters.
3. The phone becomes a key, and upon contact with the intercom while the emulator is running, it is recognized by it as a key label.

But in reality, everything is not so easy. After all, not all devices support NFC tags. And phones that read and write NFC codes are still innovative and expensive models.

From theory to practice

When implementing control technology using a phone, it must be taken into account that the NFC signal is transmitted at a distance of no more than 10 cm. With the same covers, the reception can significantly worsen. This means that until manufacturers begin to allocate a separate zone for the NFC module, and developers do not make covers with a special cutout, it will not be so easy to open the intercom with a phone. In addition, the stability of the modulation largely depends on the software of both devices and technical capabilities phone. Therefore, it will not be possible to achieve a more or less stable result on outdated models - this requires modern systems and smartphones, as well as full support from the installer.