Universal keys for doorphones with their own hands. How to make a key for a doorphone?

How to make keys for a doorphone with your own hands? Before thinking about this issue, it is worthwhile first to find out what are keys, preparations, duplicators, how they are arranged and what they are.

What is a universal key for a doorphone?

You need to start with the fact that the keys to intercoms are of several types. It can be like a contact "tablet" (usually an electronic carrier is attached to a special holder), and contactless key fobs, cards or magnetic keys, as well as two-contact keys that are really rare. Each of these keys contains a certain code that is entered there during manufacture.
Overwrite this code is quite realistic if the firmware has not been finalized, and if the key blank allows you to do this.

Is it possible to manufacture by yourself?

The universal key for the doorphone itself is rather difficult to do, simply because there are no completely universal keys. There are some exceptions to this rule. Indeed, one magnetic key for the doorphone (for example, from the "Factorial") can approach all the entrances of the house or coincide with any of the houses on the other end of the city.

Manufacturers may not particularly care about the difference in firmware, since in fact such coincidences are only a fraction of a percent of the current number - one or two, rarely more entrances in the whole city. There is also a universal tablet for opening the doorphone locks, but again it strongly depends on what kind of manufacturer it is. For example, a universal tablet from the "Factorial" does not fit the locks of other manufacturers.

What is a key blank for a doorphone?

The main technical characteristics that distinguish blanks are whether they are contact or non-contact. Also of great importance is the fact whether it is possible to rewrite the code on the workpiece, or this feature is not available. In addition, manufacturers of such blanks are really quite a lot - they all differ in small details, as well as in the quality of production. Cheap is plastic or expensive, for example. Thus, the magnetic key for the doorphone can be very different from what you are familiar with.

What is a key duplicator for a doorphone?

Duplicators can be both professional and the most primitive - the legislation of the Russian Federation in this case is not violated, since patent rights to such equipment are not affected. Such devices allow a person to read the original key code - in the future it will be used to make a new key, which can be done either manually or automatically.

The simplest duplicators can work only with the most common workpieces, and therefore they can not particularly be considered useful, although this also gives some possibilities. But the quality of duplicates still leaves much to be desired, in addition, you will need to know the brand and model of the door phone, and, perhaps, after several attempts you will still be able to make the key to the intercom.

Professional devices are much more useful. They have extended technical characteristics, which as a result gives a very high quality of the copy. Uninitiated may even seem that with their help it is quite possible to create universal keys for intercoms with their own hands, but this is not so. This device allows you to bypass the filter and use a duplicate as a native key, but nothing more.
True, the optimal workpiece is selected automatically, which significantly reduces the likelihood of errors and various defects. Also, such devices count the copies produced, and these copies will be guaranteed to serve just as well as conventional keys.

Making keys from the doorphone

To make them, you first need to know his model. If you can not do it yourself, then a professional duplicator will do everything for you. About what kind of workpiece is necessary, it is worth to learn separately - this information is in the public domain. On the Internet it is possible to find tables of compatibility of duplicators and blanks and avoid unpleasant excesses. Making keys for a doorphone using a duplicator will take from a few seconds to several minutes. It all depends on your experience with such elements.

Make a device yourself

In fact, it is difficult to make universal keys for intercoms with their own hands - it all depends on the above-mentioned problem of the general differences of all existing systems. It is really possible to perform such a task only for a person who is well versed in programming, and also has considerable engineering skills. Generally, the manufacture of keys for a doorphone is a laborious process.

If you have your own duplicator, then for one doorphone it's realistic to make a copy. But to make a universal key for a doorphone, you will need an emulator.

What is an emulator?

Strictly speaking, this device, which allows you to open almost any door. There are limitations here, but it's still much closer to truly universal keys. In fact, it's not enough to make the key to the doorphone, to write software - that's really difficult. Although even with the best software and quality emulator, any door before you will not open. Here the problem lies again in the difference between systems and even door phone models from one manufacturer. There is nothing difficult in configuring the emulator for one system, then the code will be selected according to a certain algorithm, which means that all the intercoms of such a brand will be opened literally by the wave of a hand. Everything becomes more complicated, if there are at least two brands or two different schemes, this already means the existence of two algorithms. Hence, the emulator itself will have to understand what to use in a particular situation, the good of options, how to make an intercom, is not so much. Even so, making the keys for the doorphone with your own hands is quite realistic. But it is impossible to make them completely universal. This is too serious a task even for a team of programmers and engineers, especially since the electronic key will not open the magnetic lock and vice versa. Nevertheless, emulators for various systems can be found in reference books, and if you have the experience or perseverance, you can completely make universal keys for intercoms with your own hands. However, it will be easier to buy a factory duplicate.

Myths about doorphones

You already know that it is still possible to make a universal key with your own hands, although it is quite difficult. The result will, of course, be slightly different than expected. You can talk about some people's misconceptions about intercom systems:

• Doorphones do not have universal codes, only the Vizit system differs, where in fact there is a digital combination in the factory settings that allows to open the keyless lock.
• Universal keys for intercoms simply do not exist - too different systems and principles of the locks, so that you can not open all with one key.
• The magnetic key for the doorphone can not be demagnetized if you put it in a bag with a magnetic fastener or on a column and so on. But mechanically damage such a key is quite realistic, so do not avoid careful treatment.

So, we found out how to make universal keys for doorphones with our own hands.