What is SIM Lock. What is SIM-LOCK and how it is removed. How to find out if the phone is tied to the mobile operator

Read what is SIM Lock.how to find out if your phone is tied to a certain mobile operator, such as MTS or Bizain. And what to do, if so?

Smartphone without binding to any single network gives its owner freedom to choose any provider mobile communications. Now we will tell, whether your phone is locked, or, as they say, he has "sim lok".

SIM LOCK - how it works and where it is found

A person wants to have a smartphone or a tablet without binding to a mobile operator for a variety of reasons. Maybe he wants to use another operator's SIM card with more favorable tariffWhile in another country. Or, suppose, bought a phone via the Internet and wants to know whether it is not attached to the same network. Either wants to sell, but before you make sure that the phone supports SIM cards of any operators. In this article we will tell you how it is done.

On the phone with reference, the SIM card will work only the network to which it is tied. This restriction is very much announcing those who want to take advantage of the services of another mobile communications provider.

If you acquire a phone without a SIM card (and if it is bought in a specialized store, and not from the hands), almost certainly it will not be tied to a single network, and the user will be able to solve itself, the services of which operator are more suitable for him. However, if you buy in the gadget in the salons of the mobile operator, it may be binding.

The phones are for one network only are now less common than before. And if there are such things, now the user can independently remove this restriction using codes. So those who suddenly discovered that the purchased gadget is attached only to one network, nothing to worry about.

If you can independently unlock the phone for other operators, then you may have to pay a small amount or wait for the expiration of the contract. It all depends on the specific mobile communications provider and its conditions.

How to find out if the phone is tied to the mobile operator

The first way to check SIM Lock

Those who have iPhone, Android, Windows Phone, BlackBerry or any other device from this series, the easiest way to know the answer to this question by inserting the SIM card of another operator.

You can borrow it with friends or your relatives, then you need to insert it into your gadget and see, a signal appeared or not. If not, then, most likely, the phone is tied to some single network.

Second way to verify SIM Lock

Also good way Compatibility checks with a freshly installed SIM card is a simple call. If it does not take place, most likely, the phone is tied to some single network.

Before buying, it is better to ask the seller if the phone is not attached to the SIM cards of one network. But even if only after the purchase it turned out that Sumarfton with reference - nothing terrible, because for most models, ways to remove such a restriction were already described. So it is not worthwhile to rush in this case and send your gadget to the scrap.

SIM-LOCK, SP-LOCK, "Operator Lock": All these words say about one, the phone has a software limit on a mobile phone operation only on the network. This is done so that a person who bought a phone in a certain operator has no opportunity to go to another GSM network. Such phones are usually sold by a 10-20 percent operator from their real value. The remaining cost pays the operator. The meaning of such shares is simple: the phone with SIM-Lock will always remain working only on the same network and sooner or later will pay off the operator that part of the money he made for him. In some European countries, a subscriber in a year (two) can remove Lock in service center or shop because The phone has already paid off. SIM-LOCK is removed by a set of code from the keyboard, usually 8-15 digits.

Install SIM-Lock on the phones manufacturer or its representatives. The operator orders from the manufacturer (for example Nokia) a large batch of phones and a manufacturer with phones with telephones supplies the SIM-LOCK removal codes. The physical meaning of SIM-Lock is as follows: SIM Card Stores in me MCC / NCC. Unique country code and operator. For example, the WELLCOM operator has MCC-255, NCC-02. The phone when turning on checks these code. If the codes coincided the phone works fine if there is no inscription on the "SIM" screen or requests the SIM LOCK removal code. In addition, there are other ways to coding the phone, but this most common.

How does SIM-LOCK remove?

The first way to remove the SIM-LOCK official, I described it above. SIM-LOCK is also possible to remove with handicraft. Information about SIM-Lock is stored in the phone's memory. Knowing where he will be sewn, it is possible to remove it. A special cable is connected to the phone. And on this cable, the program gives a SIM-LOCK removal command. Some phones need to drop the memory chip. Read it with the programmer, find the firmware plot responsible for SIM-Lock and correct it correctly. In the old models of Motorola SIM-Lock it is possible to remove a special SIM card or emulator of a map called Clone Card. These procedures are usually made at the amateur level. All you need to have this cable set, programmer and the most deficient program. Since phone manufacturers produce constantly new models with increasing levels of protection, the programs must be constantly updated. Such programs are written by talented programmers or steal in service centers.

How legally and ethical?

The legitimacy of the SIM-LOCK removal procedure depends on the country's legislation. In Russia, the law does not directly prohibit it. but this procedure can be brought under the article "On penetration into computer and information Technology"On the other hand, a person who bought the phone has the right to do everything he wants to do with him. For example, if you bought a TV system, which does not support the Color Standard of Ukraine and the CIS, no one will condemn if you insert the color decoder. Also you have The right to redo it as you please. The only thing you will lose this warranty for repairs in the service center. So if the precessant arises everything will be determined by the level of lawyers and lawyers. This is if we are talking about the decoding of the phone. It is quite another thing is the illegal import of phones from the West, non-payment of taxes. Representatives of phone manufacturers are trying to fight. Naturally, German, Polish or other operator remains in a loss if new phone, Bought for 10 percentage, will come from the operator's network to another network.

How correctly does the phone work after the SIM-LOCK removal?

As mentioned above SIM-Lock is software product. Usually, the SIM-Lock is correctly correct no consequences. And the phone works fine. However, in some cases, the SIM-Lock removal software is written on an ambulance and work uncorrect. Either a person wrote the program did not know the nuances of (secrets) of the manufacturer. Then the phone may have uncorrect items in the menu and problems with some features. One thing you can definitely say, after removing the log, the work of the phone will not deteriorate. That is, how the phone works immediately after unlocking (with any problems or without) so it will work. Examples of failures software After decoding the following: Siemens C25 - Do not work the function of protecting the device (phone code, request of the IDU code); Sagem MC922- Do not record the time of the last conversation, the clock failure, when the charging is turned off, the charge icon continues to move; Motorola M3888, 3588 - Calibration Mesh Fire Calibration RF path, the result of the network loss from time to time. Ericsson 868 - Periodic self-terminal.

How did you know if the phone was divided?

According to external signs: the logo on the front panel Vodafone, D2, Idea, E-Plus i.t. Sticker under the battery in Polish, German and other languages, not native to the manufacturer. Visible traces of opening a new phone. And the last-low price.

A couple of weeks ago, a friend turned to me with a small problem. It turns out that a couple of days ago he returned from Germany, where a mobile phone acquired, but the most interesting thing is that he worked there, and on arrival at home in any way. After placing a VELCOM or MTS SIM cards in it, a SIM-LOCK removal code appears on the display. I needed answers to two questions: what is SIM-LOCK and is it possible to make this phone work?


To start a little theory

System gSM connections It is arranged in such a way that every phone has the only IMEI number worldwide (IMEI - INTERNATIONAL MOBILE EQUIPMENT IDENTITY). It is usually specified on the back cover of the phone under the battery. By simple manipulations, you can display IMEI number to the display screen from the memory of the device. To do this, you need to dial * # 06 # inserted by the SIM card (this set is the same for the overwhelming number of phones). Once you click the last grid, a 15-digit number will appear on the display, it must match the number under the battery. A simple user usually has no idea about him. He is enough to know the phone number for which you can call. The system using the IMEI number tracks a specific telephone. Three lists are formed on them. So-called white, gray and black. The white list shows the devices to which the system has no questions and problems. The gray list includes devices with minor (usually technical) problems. The black list includes devices that are denied access to the network (refusal to maintain). These lists are carefully conducted in developed countries, and in the countries of the former USSR operators are not very advanced, but sooner or later this service will appear with us. If the phone is stolen or lost, and the former owner made appropriate measures, then the phone with this IMEI number can be turned off forever. Disappears the meaning of theft and there is hope for the return of a lost phone. According to the IMEI number, you can calculate the type of apparatus, country and date of manufacture. Such conformity tables exist. Of these, you can find out, for example, that your apparatus is made not in England or Holland, but in China. There is, however, another place where this number pops up: in the process of Russification, removal of locks, repair some programs change the individual, IMEI number, on your own. Personally, I think that the authors of these programs obviously suffer to the mania of greatness or prone to sophisticated Sadizm. So there is nothing good if there will be many phones with the same IMEI numbers after reprogramming mobile phones. When you enter the connection, the system theoretically should immediately apply them in a gray list. And the buyer will be at least surprised when the discrepancy between the number on the back cover and the number on the display.


And just a little theory

The people constantly confuse the concepts "gray" phone and "unlocked" phone: "gray" phone is a telephone imported into the country unofficially and, therefore, not certified. As you understand, the presence of the state commission's stickers (for example, Belarus or Russia) is not an indication that this unit is really certified (everything is bought in our time, sold and forged). Do not despair if the phone is not certified, it does not mean that it will work badly, as well as the opposite. The "mounted" phone means that the phone is "blocked under the operator", SIM-Lock, SP-Lock: All these terms say one thing - there is a software limit on the phone only on the same network. That is, buying a phone from one operator, you will not be able to go to another. Such phones are sold for 10-15 percent of the cost, and even for a purely symbolic fee of $ 1. This phenomenon is quite common in the West, foreign operators have long understood that $ 1,000 will work faster, if you receive $ 10 from 100 from each than 10 people $ 100. The meaning of such shares is simple: the phone with SIM-Lock will always remain working only on the same network and sooner or later it will work the operator by the money that was lost on sale. In some European countries, a subscriber can remove Lock in a service center or store, because The phone has already paid off. The SIM-LOCK itself is removed by a set of code from the keyboard (usually up to 15 digits). Install SIM-Lock on the phones manufacturer or its representatives. For example, the operator orders a large phone batch from the manufacturer, and the manufacturer also supplies codes to remove the SIM-Lock. The physical meaning of SIM-Lock is as follows: The SIM card stores the MCC / NCC country and operator code. The phone when turned on checks these codes. If the codes coincided, the phone works fine if not - the inscription appears on the SIM screen, or the code for removing SIM LOCK appears.


How is SIM-LOCK removed?

The first method is official, described above, but you can do it and handicraft (in our country, this is the only way to make the phone work, because you are not lucky you brought phone back only because we do not have the opportunity to be honestly " Unlock "). SIM-LOCK information is stored in memory - EEPROM (EEPROM Electrically Erasable Programmable Read-Only Memory - electronic-reprogramable permanent memory), the phone connects to a computer through a data cable and on it using a special program (anlocker) is given to the SIM removal command -Lock. EEPROM - a portion of the phone's memory in which the so-called user settings are stored (IMEI number, lock codes, checksum values). Typically, EEPROM is stored in a separate chip. Actually the programmer is in the phone. Special cable or IMEI-box (characteristic of Motorola phones) only carries out the computer-port COM port with a serial port phone. If for some reason you managed, for example, completely erase the IMEI number or EEPROM entirely, the phone will not only work, it will generally refuse to program on. In this case, you will have to arm a soldering iron and carefully drop the EEPROM chip, reprogram it by an external programmer and then pour it back. IN recent models Nokia Eeprom is physically in the same microcircuit as the main memory. In any case, when decoding the phone will have to deal with EEPROM. The volume of EEPROM is small, from 2 to 64 KB, so it is quite reasonable to save a copy of the memory on the hard drive, and even better - on CD-R. The benefits are obvious: it does not take much space, but in the case of which you can restore the phone's memory. With the "unlock" of the phone, you need 100% confident in your actions and used programs, since when destroying EEPROM, to return the phone to life is extremely difficult.


How does the phone work after unlocking?

Because SIM-LOCK is a software product, if it is correct to remove it, there will be no consequences, and the phone will work normally. Problems can begin if the program for decoding was written without taking into account the nuances (secrets) of the manufacturer, because they also do not stand still, releasing models with higher degrees of protection. The main thing - over time, the work of the phone does not deteriorate, i.e. How it works after decoding, so it will work later.


How to find out if the phone was "locked"?

The easiest way is to carefully inspect the housing for visible signs of autopsy. The non-compliance of the IMEI number appears on the display when entering * # 06 # and on the case under the battery, logos on the ARITEL, E-PLUS, SFR, ORANGE, VIRGIN Mobile, Vodafone, D-2, etc., very low price It indicates that the phone was "locked" or is such. You can also enter a specific code with a SIM card (say, for Siemens it * # 0606 #), the rows of numbers will appear, then, slightly scrolling, 5 lines will appear if they contain the text "without blocking" or "unbarred", then Most likely, your phone was not "locked" (although some decoding programs can change these lines). If there are some numbers or words of type MULTILOCK, it means that the phone is all 100% "unlocked").


Is it legal?

It all depends on the legislation of the country where it will happen. For example, in Russia, articles directly prohibiting this actionNo, but there is an article "On penetration into computer and information technologies". Although, on the other hand, if you have a TV that does not support the PAL system, no one will forbid the color decoder in it, and in general, you have the right to redo everything as you like, that's just warranty for repairs in the service center. At worst, everyone will decide our court, the most humane court in the world. This is about decoding. Another thing is illegal import of phones from the West and non-payment of taxes. Foreign operators are trying to fight this, because they remain at a loss if the new phone purchased for the 10% cost is taken from the operator's network to another network.

Who knows how to remove the blocking of Six Carts from the Samsung phone? And got the best answer

Answer from Maxim Reshetov [newcomer]
Hello. So what are you talking about !! ! The pipe is locked here ... if there is this SIM card - then everything is simple ... you go to the item Security and so you turn off the function only this sim. More difficult if there is no SIM card .. then you can try the code ... Without SIM cards you pick up * # 7465625 #. This is a check of cell locks. At the SIM Lock item will stand Enabled. This means actively blocking on the SIM card. Get out of this menu (red button) and type code # 7465625 * 746 * Code #, where Code is a set of numbers - Cell code, you should know it. If not changed - then by default or 0000 or 1234. If you do not remember the code, then put a new sim and inquit the code input * 7465625 * 746 * #. Lock will remain, but now already on this sim card. After that, you can also reset the code. Also without SIM * 2767 * 2878 #. Only, all the data from the cellular will be deleted. Yes, carefully with codes, this is a service codes. Do not touch anything more !! ! And then weaving can become just a body .... if it does not help, download the program from the NTU UST and buy a cable for a weave. And then you will understand !! ! Good luck !!
simka insert into the phone included, if it turns out and then enter * 7465625 * 746 *
i did it

Answer from 2 response[guru]

Hey! Here is a selection of topics with the answers to your question: who knows how to remove the blocking Six Carts from the Samsung phone?

Answer from Andrey Shhechina[newcomer]
How to remove the SIM card lock with samsung phone GT-S5222.


Answer from Dmitry Soloviev[newcomer]
# 7465625 * 28746 # \u003d AUTO SIM LOCK OFF NOT THANKS))


Answer from 1000 Smart Yurga[newcomer]
my Samsung GT-E1200 came up in safety mode - SIM Password Lock 2222



Answer from Отяный[active]
Alien


Answer from @ [guru]
#*7337#


Answer from Black Square.[expert]
as I understand it, it is simlock ... then in no way



Answer from Konstantin Gubin[guru]
Here is the service for unlocking mobile devices


Answer from Lakida.[newcomer]
Houses in any way! Going to salon cellular communication (his MTS, Billane, Yoto, Tele2) tell the problem, you change sim card (in some cases and phone number) and you are happy))
Codes do not work! Moreover, how do you send an SMS from a blocked phone? Or will call?

Purchasing a smartphone "from hand", buyers pay great attention to checking it external view Both basic functions, but one important point is completely overlooked: do not specify the seller, is the gadget is locked. The locked smartphone will cost the buyer cheaper, but for a momentary benefit, then you will have to pay the stock edge. What is the lociated and why buy such a device is not recommended?

Locled iPhone ( SIM-LOCK.) - This is a gadget that can work with SIM cards of only one mobile operator. Such smartphones are sold along with mobile communication contracts (as a rule, two-year). By purchasing a SIM-LOCK device, the user voluntarily deprives himself: If the conditions offered by the Communication Provider will cease to arrange an iPhone owner, he will not be able to go to competitors.

The SIM card of the "necessary" operator is required to activate a slotted device. This means that the gadget with SIM-LOCK will not be able to use even as a multimedia device - to view movies or listening to music.

The practice of selling locked iPhone is distributed in the United States, in Australia and in Western European countries. In Russia, the iPhone SIM-Lock on the windows of large electronics stores and cellular salons will not meet, but when buying over the Internet it is easy to come across such an instance. Most likely, the device will be locked under the SIM card not a domestic mobile service provider, and foreign (like AT & T.) Therefore, solve the problem, simply moving to another operator, it will not work.

How to find out the locked iPhone or not?

How to solve the problem, it is better to prevent its occurrence. In order not to get into a stupid situation, being "on hand" with a device costly, but absolutely unsuitable in Russian realities, you should check the iPhone for the presence of SIM-Lock before transferring money seller.

There are several ways to understand that the iPhone is locked:

Insert your SIM card. Device without SIM-LOCK. Quickly recognizes the operator. If the gadget is locked, you will see an inscription on the screen " Activation Required.» (« Activation is required»).

Via Internet services.Thematic sites assure that free Services To check the SIM-Lock iPhone on IMEI, it remains, thereby misleading readers. At the time of writing the article, the site works www.iPhoneox.com, where the ruble will not be asked for such a check.

Before you use the site, find out IMEI devices - This number can be viewed on the iPhone box or in the smartphone settings (path " Settings» — « Maintenance» — « About this device»).

Table S. will appear detailed information About the smartphone. Find " SIM-LOCK STATUS »- if opposite it stands " Unlocked"So the gadget will be able to work with SIM cards of all operators.

There are other similar portals (for example, more famous service www.imei.info), but for their use you need to pay. The cost of the inspection will be about 3 dollars.

According to the model. It's not about modification ( 5S, 6, 6S), namely about models. You can find out the model " About this device»In the settings of the device.

Two letters after numbers in the designation of the model indicate the country for which the device is intended for the market. In our example, it is the letters " Ru" - we understand that this iPhone For Russia, and therefore SIM-LOCK. It can not be on it.

If you buy "from the hands" and see that in the designation of the model instead of " Ru»It is worth, say," LL"(Gadgets for Americans), you will need an additional check, because in the USA, iPhones and sim-lok and without it are sold. Pay attention to the digital code in the designation: numbers 608 , 610 , 318 , 319 it is suggested that the device is blocked.

How to unlock an iPhone?

There are two ways to unlock an iPhone, and each of them requires material costs from the owner of the gadget.

Hardware "Unlock"

Hardware "Unlock" involves the use of a special adapter called Turbo-Sim.which is put in the tray for SIM cards along with the card itself. The chip of such a device contains unique IMSI identifiers at once several known cellular operators - It allows you to get rid of blocking.

When activation is activated, on the iPhone with Turbo-Sim.a special code comes, which unlocks the radio module and the modem of the device.

Hardware "Anloka" has whole line Disadvantages:

  • Communication becomes worse.
  • After each signal loss, it is necessary to carry out the activation procedure again.
  • Functions iMessage. and Face Time. Set up problematic.
  • Many Turbo-Sim.(for example, firms R-SIM.) Do not allow any actions with a gadget firmware - in particular, update OS.

In Russia are common Turbo-Sim. such manufacturers like Gevey., R-SIM., Heicard. Adapters of each of the firms have their pros and cons. Let's say Turbo-Sim. from Gevey. They are very fragile, but allow users to update the iPhone. R-SIM., on the contrary, durable, however, for each upgrade, the Gadget owner will have to buy a new adapter of this manufacturer. Heicardprofitably differ from the rest of what they provide high quality Communication.

The cost of one adapter ranges from 1300 to 2000 rubles.

Official "Unlock"

What if you do not want to endure inconvenience related to the use Turbo-Sim.? Then you need to create an official request to the operator, otoving it about the desire to remove the lock. The operator may go to meet, but it will have to pay him a n-th sum - we can say that the owner of the iPhone redeems the right provider the right to choose a cellular service provider.

Cheaper to unlock iPhone, locked under the American operator AT & T. - It will cost about 1 thousand rubles. Request to cancel lock AT & T. It should be served here - www.att.com/esupport/index.jsp. The cost of "Anlyoka" reaches 15 thousand rubles (when removing SIM-LOCK., say, Finnish operator DNA).

You can contact not only directly to operators, but also to third-party performers who are able to organize the official "unlock" faster (response to a direct request to the operator will have to wait about a month). It is important to approach the selection of the artist responsibly: you should contact the company that have real offices, and avoid firms that require payment by electronic money and promising instant unlock.

Conclusion

Before going to the conscious purchase of a wanted smartphone, consider whether this transaction will be favorable in the long run. To do this, you need to take into account the cost of the adapter Turbo-Sim. Or services of specialists in unlocking iPhone (depending on the preferred view of the "Anlylok"). It should also be taken into account that the buyer will not be able to use iPhone immediately - He will have to wait for the end of work on the removal SIM-LOCK. Or delivery of the desired adapter. This inconvenience gives the buyer the right to demand an additional discount.