Codes for intercoms of different models. How to hack Vizit intercom using special codes

Nowadays, multi-storey buildings are equipped with intercoms. This type of security has already proven itself: thanks to intercoms, the entrance is always clean and there is no access for strangers. However, these devices also have disadvantages. IN emergency situations intercoms make it difficult for rescuers to pass through, as well as for residents themselves who have forgotten their house keys. Today you will learn how to open the Eltis intercom without a key without damaging it.

Common methods:

1. Universal key.
2. Special codes.

Peculiarities

Eltis - domestic products. The security code consists of four characters. Each resident of a house with an intercom is issued an electromagnetic key. However, this device has a significant drawback - it can be easily broken.

The Eltis system consists of 3 levels:

1. Secret code.
2. Administrator code.
3. Installation password.

The device consists of the following components:

1. Call and communication blocks.
2. Subscriber console.
3. Power unit.
4. Electromagnetic lock.
5. Key reader.

Advantages:

1. Can serve more than 100 subscribers.
2. Adjusting the door opening time.
3. Enabling and disabling the combination lock.
4. Panel lighting.
5. Keyboard with voice acting.

Operating principle of the device:

1. Enter the apartment number.
2. Press the call button.
3. A signal is sent to the apartment.
4. The intercom user picks up the phone.
5. Pressing the door open button.

To find the serial number:

1. Hold "B" for 25 seconds.
2. A number will appear.

The code may vary depending on the model.

Common ciphers:

1. S - 100 - S - 7273.
2. S - 100 - S - 2323.
3. S - 100 - S - 7272.

If these codes did not help open the doors, then you need to use other methods.

Opening using codes

Enter code to open:

Video on how to open the Eltis intercom without a key:

Programming

To change the settings you need to do the following:

1. Hold “B” for 10 seconds.
2. "Sys" will appear.
3. "1234".
4. "6_7x" will appear.
5. Press the number of the action you need:
   1. “1” - to change the old password.
   2. “2” - to enable or disable the password.
   3. “3” - to change the general password.
   4. “4” - to enable or disable the door opening signal.
   5. “6” - to enable or disable the password for an individual apartment.
   6. “8” - to change the door opening time.
   7. "0" - exit.

Video on how to program the Eltis intercom:

Universal key

When all of the above methods did not help, then the only way to open the intercom is to use a universal key. Currently, many models come with this device. During installation, such a key is entered into the intercom memory.

If the kit did not include a universal master key, then you can contact a company to make one.

Visit intercoms are the most common electronic intercoms in Russia. They are opened using contact keys and contactless magnetic cards. If you do not have an electronic identifier, you can enter a special code. It must be remembered that acts of selfish or criminal intent are punishable by law.

The Vizit intercom has several operating modes: normal, maintenance mode, changing settings and programming. Each mode can be accessed using special code combinations. When any model is released, a factory code is set. It is operational until it is changed. The default password can be changed during system installation.

Code combinations for keyless entry

If the subscriber does not have an electronic key, then a completely logical question arises: “How to hack an intercom using special code combinations?” To visit, you need to put in more effort than to open similar equipment from another brand. Distinctive feature device is that the * and # keys may not be present on the calling panel. Instead, there are buttons C and K, respectively.

If the standard did not change during the installation work by specialists, then to obtain it you can try entering the following combination:

• Dial * - # - 4230;
• Enter 12 - # - 345.

These codes are usually standard for devices equipped with LEDs that do not have a display. To use a special code to hack newer models of equipment, you can enter one of the following digital combinations:

• On the calling panel enter * - # - 423;
• Dial 67 - # - 890.

Using a special code, you can access the service menu of the Vizit intercom device. To do this, press the # key on the calling panel (if it is missing, press the K key). Then enter the digital password - 999. After completing these steps, a double call should follow. Next, you need to enter the standard master code 1234. If the code information is correct, one beep will follow. If the password is entered incorrectly, a double beep will sound. Depending on the specifics of the installed equipment model, the standard master code may be different, for example: 6767, 3535, 12345, 9999, 0000, 11639.

Alternative ways to open an intercom

Hacking or hardware is always a challenging task. This is primarily due to the functional features of the mechanism. The hacking process is also affected by changing factory settings when installing equipment. If, however, one of the above codes is correct, and you have entered the service menu, you can perform several operations to change the device firmware.

To do this, follow these steps:

• On the calling panel press number 2;
• Then the # button;
• Enter combination 3535.

When entering the service menu directory, each number on the calling panel displays a specific subdirectory. To enter them into the device’s memory, after entering this section, you need to bring the new identifier to the reader and simultaneously press #. Upon receipt of a short sound signal you should press * to complete the recording process. Pressing the number four on the calling panel will enter a subdirectory to delete all existing keys from the intercom memory.

To complete work with software settings and exit the service menu, you need to press *, and to confirm and save the changes made, press #.

The above special passwords may not always provide access to the premises. If the code was changed during installation of the device, it can only be found out from the specialists who installed the equipment. For access without using the identifier that came with the intercom, you can order a universal key. Information containing several special codes is programmed into it. With its help you can open several intercoms of the same brand. Appearance This universal master key is no different from a regular magnetic key.

The video shows the use of the code:

Intercoms in apartment buildings They limit access to the premises; as a rule, they are installed on the front door. To get inside, you need a special electronic key suitable only for this door. Manufacturers can also “hardwire” a common code into the device, which is communicated to residents. In the first case, you can open the intercom without a key, but you need to know the special system codes with which the device is programmed. In addition, you can simply hack the intercom, but residents and service providers will definitely not like this.

Using a secret code

The system code is installed on all intercoms, regardless of brand or manufacturer. It is installed by manufacturers so that they can configure the device before putting it into operation or debug it depending on the conditions in which it will be operated. In addition, it should be possible to open the door without a special magnetic key. True, everything standard passwords can be replaced during installation of the device - if this is done, you will have to select the installed code from the ones listed below.

It is clear that the intercom can be made by different manufacturers, who set their own passwords on the devices. There is no “magic” code that will fit any device, but for a certain brand it is quite possible to find one.

The use of system codes can negatively affect the operation of the device, so it is advisable to use them only as a last resort. It should be taken into account that such actions fall into the category of offenses with corresponding claims from the criminal code.

How can you open a Digital intercom if you don’t have a key?

If the key is lost, the following data is needed to unlock the intercom:

• Availability of apartment numbers at the entrance that are multiples of one hundred (one hundred, two hundred... nine hundred);
• Name and model of the installed intercom.

So, at the entrance there are the necessary apartment numbers, which means you should use the following codes: (communication button = B)

If the intercom marking contains the letter “M”, then you can use the following combinations: communication button (B) – 41 – communication button (B) – 1410.

It is also possible to open such doors with the code “07054”.

Model CCD 2094.1 M. Such intercoms can be unlocked by entering a code: communication button (B) – 0000. Such a code can immediately open the door, or it can only give access to the menu (if ON appears on the display), the next step is button “2” on the dial and the doors will open. The inscription “OFF” indicates that the installer was in charge and was not too lazy to change the master access passwords.

Model CCD 2094 M. First enter the code: 0000 – communication button (B). Then the code “123456 – communication button (B)” is dialed.

If you first dial the code “123400 – communication button (B)”, “f0” will light up on the display. Next, enter the value “601”.

Is there a universal key?

Such a device makes life much easier for representatives of various services whose work requires unhindered access to entrances - postmen, police, firefighters, gas workers, etc. But since everyone has probably watched a local police officer or someone else from the above calling neighbors to ask them to open the doors, a logical question arises: is such a key a myth or is it reality?

Technologically, there is nothing impossible in its existence. Any key contains a set of specific signals that are read by the device. Then the intercom compares the received information with that stored in its memory and makes a decision - to open the doors or issue a message about an access error. Therefore, if the code generated by the key fob matches the intercom, the latter will open. Another question is that models, and therefore technologies, are constantly changing, which means that old universal keys may not fit new intercoms. Moreover, residents who order an intercom can insist on changing the master passwords so that there are fewer strangers in the entrance. Accordingly, no one can give a 100% guarantee that the key will open any device.

Hack the digital intercom with a mobile phone

There is nothing complicated about Digital intercoms - when voltage is applied to them, they give a certain sequence of short circuits, after which a code is issued. There are no checks and no relationship with the key.

This code can be recorded on the computer’s sound card and then, if necessary, recorded on the phone, which will subsequently open the intercom.

In order to check what kind of power is supplied and whether an additional external battery is needed, it is necessary to measure the voltage. In principle, nothing else is needed to record the key.

Open the recording program and press the “Record” button.

In the sound recording settings, the microphone needs to be set to maximum. The recording will show a curve. The code consists of three short pulses and one long one, this will be clearly visible on the graph.

Processing in a recording program

In total, the code consists of 36 such pulses which mean either 0 (wide) or 1 (narrow).

When processing, it is necessary to remove all recorded silence and leave only the code recording. Next, you need to multiply it (copy and paste), increase it to about 1 minute. Saving in WAV format,

For convenience, we call it “Key Record”. Moving a recording to your phone.

After such a simple procedure, you can unsolder the key from the wiring. It is with these wires and a mobile phone that you can open the intercom.

In order for the power to match the cable, you will need to solder a 600 - 800 Ohm resistor. That is, a wire with a resistor is used on one side, and a wire from a minijack is used on the other side.

External power supply should be around 12 Volts.

True, there is an opinion that without special equipment this all may not work. Testing this method in the video below:

Forceful methods of opening an intercom

Already invented a large number of methods on how to open or damage the intercom so that it unlocks the door. The most basic method is a powerful blow to the door, which must be delivered 10-15 cm below the call panel. This calls for shorting the wires, which will open the device on its own. But the location of the impact strongly depends on where the control unit is located - if you just hit the frame, there will be no effect.

Such methods can physically destroy the intercom or damage its components, which is not approved by current legislation.

When using an electric shock, a strong shock is passed through the reader (to which the key is usually applied) and short-circuits all the control electronics, causing the magnet to unlock and the door to open.

The intercom itself does not close the door - for this there is a powerful magnet, which can be directly influenced. You need to make a sharp and strong jerk on the door leaf. To enhance the effect, they press their foot against the wall and pull the door.

It should be remembered that the spine does not like sudden jerks - if you turn incorrectly at the moment of the jerk, you can “undermine” your back.

If the previous method did not work (anything is possible - the magnet develops a force of up to 400 kg), then you can try to reduce the voltage in the control circuits, for which you need to block the speaker and microphone with your hand. This will most likely lead to feedback, similar to the one that occurs in speakers when a microphone is placed in front of them. If everything works out, but the voltage in the intercom weakens or disappears altogether.

Using force, you can open the intercom only once, after which the device will most likely have to be repaired. Therefore, if you lose your key fob, it is best to ask your neighbors to open the door and then contact the service to get a new key.

Digital intercoms are products of domestic manufacturers and are designed to restrict access to the premises. Produced protective devices universal and meet international standards. The most common model is considered to be CCD-2094. Such equipment is multi-user and is intended for installation in apartment buildings.

The Cyfral intercom can transmit audio and video signals, and also has many modifications and can be easily improved. Its feature is the ability of the user to independently choose the type of identifier to gain access.

General aspects of keyless opening of intercom devices

The intercom equipment is controlled using a key: contact or contactless. There are situations when, for one reason or another, the identifier is missing. To gain access in this case, you must use a special code. If during the installation of the equipment the settings were not changed by the wizard, then according to the factory firmware the intercom is programmed as follows:

• To enter the system menu of the Cyfral CCD-20 device, use the standard code 123456;
• General access code - 1234;
• To display a special encoding table, use the password 000;
• The serial number of the first subscriber is 1;
• The number of subscribers served is 100;
• The mode for using codes is enabled;
• The door warning system is turned on.

To enter the programming mode of the Cyfral CCD-20 model, you need to perform the following steps:

• Turn off power and voltage;
• Detach the back panel;
• Close both contacts on the Cyfral CCD-20 equipment controller board;
• Turn on power and voltage.

How to change device software settings?

In order to change the settings of the Cyfral intercom equipment, you can try the following steps:

• Press the “K” key;
• F will appear on the monitor;
• Enter 0 and K alternately;
• Enter a four-digit password to access.

Pressing the number 1 for Cyfral intercoms will allow you to change the number of the first subscriber in the list. To do this, you need to enter a specific number and press the “K” key. Number 2 will enter the subscriber blocking mode. To enable the blocking, enter the combination 0-K-number, to cancel the blocking - 1-K-number.

Using special Cyfral intercom codes, you can program the locking device.

To do this, dial 4 on the calling panel. L0C will appear on the monitor. The key will be recorded upon contact with the reader. If such an identifier is already displayed in memory, the message Est will appear on the screen. If there are not enough free cells, the message Per will appear.

Digital combinations from Cyfral intercom allow you to change a previously programmed code. When you press the number 6, the words “CdP” and “_ _ _” will appear on the monitor. After this, you need to enter a new code, press C and re-enter the code. If all actions are performed correctly, there will be a corresponding notification and sound signal.

Using a special one, you can adjust the settings for the sound notification. To do this, while in programming mode, you need to dial the number 7. If sound is required, press 1. To prevent the sound signal from coming, press 0.

Using a universal cipher

Changing software settings is not for everyone. There are other ways. The question arises: “How to use code?” The answer is very simple: you need to know a few simple combinations. A universal access code is suitable provided that the apartments in the entrance are numbered in multiples of hundreds (from 100 to 900).

If you do not have an electronic key, you can do the following:

• Press the call button;
• Enter the apartment number (100-900);
• Dial password 7272 or 7273.

Distinctive code combinations for specific models

Intercom type CCD-2094 has its own characteristics. Therefore, using any of the above universal code, you may not be able to gain access. This equipment model is modified and equipped with new microcontrollers. The intercom also works using a special software.

Of course, you can try to enter one of the combinations for other device models. If still not implemented, then you should perform the following steps:

• Enter code 0000;
• When On appears, press 2;
• After the inscription Cod appears, enter the code 123400.

If the specified password is not suitable, you can enter the combinations 123456 or 456999. When the code information is selected correctly, the message F0 will appear on the monitor. To allow access you need to enter the combination 6-0-1. The door should open. Without using codes, the easiest way to open the door is using the included identifier.

If you were unable to find out the intercom code or special combinations do not work, you can change the software settings. Initially, you need to enter the combination K-0-K. Next, enter four numeric characters. After entering the code information, its uniqueness is checked and identification occurs.

Provided that the code belongs to the CCD-2094 model, the call block will go to work in the service settings menu.

After this, information containing the version number of the device’s factory firmware and software will be displayed on the screen, and a notification Pg will appear.

Conventions on the calling panel

Each number on the calling panel of Cyfral equipment in the service settings mode carries certain information. The program table presented on the calling panel has the following symbols:

• Changing the subscriber number (usually the first one in the device’s memory) – 1;
• Control of subscriber blocking mode – 2;
• Changing code information (current table) – 3;
• Entering the programming mode of a locking electromagnetic or electromechanical device – 4;
• Possibility to change – 5;
• Change of standard code – 6;
• Identifier warning system – 7;
• Regulation of general encoding – 8;
• Key deletion mode (for each subscriber separately) – 9.

It must be remembered that this information is not a guide for unauthorized access or hacking of intercoms of the described brand.

The video shows how to open the intercom:

Open the “Visit” intercom without a key in emergency situation sometimes it is necessary not only for rescuers and medical workers, but also for ordinary citizens. The reason could be the loss of a magnetic key fob, simple forgetfulness, etc. It may help in this case service code, which is installed at the manufacturer's factory. If it was not changed during installation, then you will be able to use it.

If you find yourself in a difficult situation, for example, in the yard New Year. You can’t reach or reach anyone. It's late and people are no longer moving. In this case, it makes sense to look for a cheat sheet where the access code is written down. It will allow you to open the intercom without a key in a matter of seconds.

At the same time, it is worth remembering small nuance. If the code was changed during installation or after it, then it will not be possible to hack “Visit” electronically.

To open the intercom, we will agree to mark the pause with the letter “P”. Sound signal "Z".

• *#4230
• *#42312#345
• #99911089
• *#999-P-234-P-5-P-9

For Vizit models Comfort and higher

• *#423
• 67#890

Service menu

The intercom can sometimes be opened by accessing the service menu. It opens with the combination #999-З-З

After the beep, enter 1234. If the intercom does not respond, you can try the following options:

• 11639;
• 3535;
• 0000;
• 6767;
• 9999.

Go through the options until you hear a squeak. This will open access to the service menu. After that, enter 2P#3535. The intercom should give in and open the door.

To enter your key into the database, you need to press “3”, and then attach the key fob to the intercom detector. Then # is entered. The completion of the operation will be indicated by a sound signal.

Entering “4” erases all keys from the database.

• — exit the mode.
• # — confirmation of the entered changes.

There are also models that do not have a display. In this case, after entering the service menu, simply enter “1”.

Human method - without code and key

In what cases can you get home without having the code, leaving the key fob in the apartment? To do this, there are several of the most effective techniques that work flawlessly in 80% of cases.

• Wait until someone enters or exits the entrance. Usually people, seeing an adequate person, skip him. And if you say that you House master, plumber, etc., then the road is completely open.
• Call your neighbors and explain the situation. If you have just recently moved into a new home and haven’t had time to meet people, then this is just a convenient reason to improve the situation by inviting your neighbor for tea in exchange for letting you into the entrance.
• Call mobile phone neighbor/neighbor and ask to open the intercom.
• Hide a spare keychain near the entrance in a secluded place just in case and use it if necessary.
• Buy an all-terrain key, or better yet several, put it in your pockets and always keep it with you. It is worth remembering that each brand has its own universal master key.

Using a universal key

Currently, there are quite a few proposals for a universal key. The advertisement says that it can open all the entrances in the city, and with its help you can always get to a friend’s birthday party or hide from persecution in a strange neighborhood or even city. How true is this? What is the operating principle of this key?

Service departments are faced with the fact that their employees need to have unhindered access to the objects being serviced. And it’s not always convenient for the foremen to disturb the residents every time. Therefore, special chips were developed that provide access to all devices manufactured under a specific brand.

On what principle do electronic keys work?

It is generally accepted that the operation of an electronic key is based on a simple magnetic code, which is recorded as an audio file on magnetic tape or a permanent magnet. This is not entirely true. There are several types of keys.

• Touch Memory

This is a contact programmable device. Non-volatile memory Touch systems Memory with firmware.

Contact is made via the One-wire bus, which makes it possible to enter 2 or more keys into the intercom memory. Power is provided through it using a built-in capacitor, which stores electricity at the moment of contact with the intercom.

The built-in microcontroller stores the factory code. It is unique for each unit. Therefore, when setting up the device, all the keys issued to the residents of the entrance are entered into its memory. If any of them are lost, the technician simply enters a unique code for a new key into the intercom’s memory, which is then issued to the person.

Identification occurs when the key fob is brought to the connector. Power flows through the bus, “revitalizing” the software, which produces the code stored in memory. The intercom looks for it in its database. If found, it gives a command to open the door to the actuator.

Therefore, if you have a key and access to service settings, you can simply store it in memory and use it until someone resets the device database.

The universal key works according to a unique principle. The intercom microcontroller contains free memory cells that have their own code. To open the door, you present the key, its software communicates the encoding of the free cells to the microcontroller, and after a while the path is clear.

• Resistive switches

A resistor is sewn into the body of the resistive device, providing a certain resistance to current. Upon contact with the bus, identification occurs through the measurement of electron flow.

You can solve such a key by choosing a suitable resistor. Fortunately, the manufacturer uses one denomination for each series. Universal keys of this type work on this principle.

• Reed keys

The magnetic pair works. Upon contact, the circuit closes or opens, triggering the opening mechanism.

• Optical keys

Optocoupler made of LED and perforated plate. The sensor reads the location of the holes on the plate and deciphers the “message” of the key. It is quite difficult to break such a code, unless you have a working card.

What's better?

If you are a specialist in the service sector, then it is easier for you to purchase universal keys to open entrances. They usually operate in a specific city or region. This applies to instances with built-in software.

If you are going to install and maintain intercoms in your city, you will receive “Visit” access codes along with instructions.

In the event that you find yourself in an emergency situation and you need to hack the security device of your own entrance, in most cases it is faster and more effective to contact your neighbors.

The main thing is to remember that this information is provided for law-abiding citizens and is not aimed at illegal actions that could lead to disastrous results.