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One of such locking methods, according to which various pin codes are used in combination with an IMS code short for English words International Mobile Subscriber Identity - an international identification code of a mobile subscriber stored in a SIM card, is described in document EP 0607767.

In addition, if the phone was stolen at the moment when it was turned on, then in order to be able to use it, it is enough for the kidnapper not to turn it off.

for use by subscribers with means for preventing unauthorised or fraudulent calling• is possible, then the manufacturer must perform the necessary coordination.

For this, the terminal can be introduced, for example, GPS.

230000005540 biological transmission Effects 0.

Another disadvantage of this method is that it requires the input of one or more codes, the functions of which users often do not understand well, and this is fraught with errors in the operation of the device, which can lead to its unwanted blocking.

Thus, in case of theft or loss of the device, you can inform the operator about it so that he blocks the subscription.

It should also be borne in mind that this method is not suitable for devices that provide the ability to replace this SIM card with another card.

terminals, base stations or access point devices• 2001-12-14 ES ES01271731T active Active• The usefulness of this operation is obvious: thanks to the location of the phone, and in the more general case of any mobile device, the whereabouts of the kidnapper are also detected.

The present invention relates to a method of protection against theft or misuse of devices, the operation of which can be controlled by software, as well as to the respective devices and installation for implementing the method.

We also mention that the pin codes currently in use are quite easily decrypted, so that their benefit becomes doubtful.

To date, the development of new technologies shows a tendency to a total transition to portable equipment, which leads to the appearance of an increasing number of communication devices or devices, united by the general concept of "nomadic" or "mobile", that is, those that can be carried with or included into the composition of systems operating in the most diverse environment, and more simply - those whose work is not tied to any strictly defined place.