Who knows how to unblock a SIM card from a Samsung phone? and got the best answer

Answer from Maxim Reshetov[newbie]
Hello. So what are you talking about!! ! Here the pipe is locked... If you have this SIM card, then everything is simple... You go to the Security item and then disable the Only this SIM function. It’s more difficult if you don’t have a SIM card.. Then you can try with the code... Without a SIM card you dial *#7465625#. This is a cell phone block check. The SIM lock item will be Enabled. This means the SIM card is blocked. Exit this menu (red button) and dial the code #7465625*746*CODE#, where CODE is a set of numbers - a cell phone code, you should know it. If you haven’t changed it, then by default it’s either 0000 or 1234. If you don’t remember the code, then install a new SIM and enter *7465625*746*# when prompted for the code. The blocking will remain, but now on this SIM card. After this you can reset the code. Also without SIM *2767*2878#. Only this will delete all data from the cell phone. Yes, be careful with the codes, these are service codes. DON'T TOUCH ANYTHING ELSE!! ! Otherwise, a hundred square meters can become just a body.... If that doesn’t help, download the program from the UST net and buy a cable for a hundred square meters. And then you'll figure it out!! ! GOOD LUCK!!
Insert the SIM card into the switched-on phone, if possible, and then enter *7465625*746*#
I did that

Answer from 2 answers[guru]

Hello! Here is a selection of topics with answers to your question: Who knows how to unlock a SIM card from a Samsung phone?

Answer from Andrey Shcherbina[newbie]
How to unblock a SIM card from samsung phone GT-s5222

Answer from Dmitry Soloviev[newbie]
#7465625*28746# = Auto SIM lock OFF no thanks))

Answer from 1000 Little Things Yurga[newbie]
My Samsung gt-e1200 worked in security mode - SIM lock password 2222

Answer from Jatyana Malovania[active]
Alien

Answer from @ [guru]
#*7337#

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

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

Answer from Lakida[newbie]
No way at home! You're going to the salon cellular communications(your MTS, Billane, YOTO, TELE2) You tell the problem, they change your SIM card (In some cases, the phone number) And you are happy))
The codes don't work! Moreover, how can you send SMS from a locked phone? Or will you call?

A couple of weeks ago, a friend came to me with a small problem. It turns out that a couple of days ago he returned from Germany, where he literally bought a mobile phone for next to nothing, but the most interesting thing is that he worked there, but upon arrival in his homeland he didn’t work at all. After placing a Velcom or MTS SIM card into it, a code request to remove the SIM-Lock appears on the display. I was required to answer two questions: what is SIM-Lock and can this phone be made to work?

First, a little theory

The GSM communication system is designed in such a way that each phone has a unique worldwide IMEI number (IMEI - International Mobile Equipment Identity). It is usually indicated on the back cover of the phone under the battery. With simple manipulations, you can display the IMEI number on the display screen from the device’s memory. To do this, you need to dial *#06# with the SIM card inserted (this dial is the same for the vast majority of phones). Once you press the last hash mark, a 15-digit number will appear on the display, it should match the number under the battery. The average user usually has no idea about it. All he needs to know is a phone number to call. The system uses the IMEI number to track a specific telephone device. Three lists are formed from them. The so-called white, gray and black. The white list shows devices for which the system does not have any questions or problems. Devices with minor (usually technical) problems are included in the gray list. The black list includes devices that are denied access to the network (denial of service). These lists are carefully maintained in developed countries, and in the countries of the former USSR the operators are not yet very advanced, but sooner or later such a service will appear in our country. If the phone is stolen or lost, and the previous owner has taken appropriate measures, then the phone with this IMEI number can be disabled forever. The meaning of theft disappears and there is hope for returning the lost phone. Using the IMEI number, you can determine the device type, country and date of manufacture. Such correspondence tables exist. From them you can find out, for example, that your device was made not in England or Holland, but in China. There is, however, one more place where this number pops up: in the process of Russification, unlocking, and repair, some programs change the individual IMEI number to their own. Personally, I think that the authors of these programs obviously suffer from delusions of grandeur or are prone to sophisticated sadism. So it is not good if after reprogramming mobile phones there are many phones with the same IMEI numbers. When contacting, the system should theoretically immediately add them all to the gray list. And the buyer will be at least surprised when he sees a discrepancy between the number on the back cover and the number on the display.

And a little more theory

People constantly confuse the concepts of a “gray” phone and an “unlocked” phone: a “gray” phone is a phone that was imported into the country unofficially and, therefore, not certified. As you understand, the presence of a state commission sticker on the case (for example, Belarus or Russia) does not indicate that this device is truly certified (in our time, everything is bought, sold and counterfeited). Don't despair if the phone is not certified; this does not mean that it will work poorly, nor vice versa. A “locked” phone means that the phone is “locked under the operator”, SIM-Lock, SP-Lock: all these terms mean one thing - the phone has a software restriction on the phone operating on only one network. That is, if you buy a phone from one operator, you will not be able to switch to another. Such phones are sold for 10-15 percent of the cost, or even for a purely symbolic fee of $1. This phenomenon is quite common in the West; foreign operators have long understood that you will earn $1000 faster if you get $10 from each of 100 people than from 10 people for $100. The meaning of such promotions is simple: a phone with SIM-Lock will always work only in one network and sooner or later will pay back to the operator the money that was lost when selling it. In some European countries, after a couple of years, a subscriber may have their LOCK removed at a service center or store, because... The phone has already paid for itself. The SIM-Lock itself is removed by typing a code from the keyboard (usually up to 15 digits). SIM-Lock is installed on phones by the manufacturer or its representatives. For example, an operator orders a large batch of phones from a manufacturer, and the manufacturer, along with the phones, supplies codes for removing Sim-Lock. The physical meaning of Sim-lock is as follows: The Sim card stores the MCC/NCC unique country and operator code. The phone checks these codes when turned on. If the codes match, the phone works normally, if not, the message “SIM does not fit” appears on the screen, or a code is requested to remove SIM LOCK.

How is Sim-Lock removed?

The first method is official, described above, but you can also do it in a homemade way (in our country this is the only way make the phone work, because you won’t take the phone you brought back just because we don’t have the opportunity to honestly “unlock” it). Information about SIM-Lock is stored in memory - EEPROM (EEPROM electrically erasable programmable read-only memory - electronically reprogrammable read-only memory), the phone is connected to the computer via a data cable and a command is given to remove the SIM using a special program (unlocker). -Lock. EEPROM is a section of the phone's memory in which so-called user settings are stored (IMEI number, lock codes, checksum values). Typically the EEPROM is stored on a separate chip. The programmer itself is located in the phone. A special cable or IMEI box (typical for Motorola phones) only matches the computer's Com port with the phone's serial port. If for some reason you managed, for example, to completely erase the IMEI number or the entire EEPROM, the phone will not only not work, it will generally refuse to be programmed further. In this case, you will have to arm yourself with a soldering iron and carefully unsolder the EEPROM chip, reprogram it with an external programmer and then solder it back. IN latest models Nokia EEPROM is physically located on the same chip as the main memory. In any case, when decoding the phone you will have to deal with EEPROM. EEPROM is small, from 2 to 64 KB, so it is quite reasonable to save a copy of the memory on a hard drive, or even better, on a CD-R. The benefit is obvious: it won’t take up much space, but if something happens, you can restore the phone’s memory. When “unlocking” a phone, you need to be 100% confident in your actions and the programs used, because if the EEPROM is destroyed, it can be extremely difficult to bring the phone back to life.

How does the phone work after unlocking?

Because SIM-Lock is a software product, so if you remove it correctly, there will be no consequences and the phone will work normally. Problems can begin if the decoding program 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 is that the phone’s performance does not deteriorate over time, i.e. the way it works after decoding is the way it will work afterwards.

How can you tell if your phone has been locked?

The easiest way is to carefully inspect the case for visible signs of tampering. Mismatch between the IMEI number that appears on the display when you enter *#06# and on the case under the battery, logos on the case like Aritel, E-Plus, SFR, Orange, Virgin mobile, Vodafone, D-2, etc., very LOW PRICE indicate that the phone has been “locked” or is so. Also, with the SIM card removed, you can enter a certain code (say, for Siemens it is *#0606#), lines of numbers will appear, then, scrolling a little, 5 lines will appear, if they contain the text “Unlocked” or “Unbarred”, then, Most likely, your phone was not “locked” (although some decoding programs can change these lines). If it contains some numbers or words like Multilock, then the phone is 100% “unlocked”).

Is this legal?

It all depends on the legislation of the country where this will happen. For example, in Russia there are articles directly prohibiting this action, no, 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 you to install a color decoder in it, and in general, you have the right to redo everything in it as you like, but you will lose the guarantee for repairs at the service center. At worst, everything will be decided by our court, the most humane court in the world. It's about decoding. Another thing is the illegal import of phones from the West and non-payment of taxes. Foreign operators are trying to combat this, because they remain at a loss if a new phone, purchased at a 10 percent cost, is taken from the operator’s network to another network.

What is SIM-Lock, when does it happen on MegaFon phones and how to deal with it?

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What is SIM-Lock?

“Lock” translated from English means “lock” or “encoding”. That is, “SIM-Lock” is a specially encoded device. Using encoding, the manufacturer or seller of the phone sets the settings in which you can use this device only if connected to a certain mobile network, for example, it can only be used on the MegaFon network.

As soon as you try to insert a SIM card from another operator into the phone, the message “Your SIM card is not supported on this device” or “Enter the unlock code” will appear on the screen. Encoding can be used on any phone model - from the simplest to the most sophisticated.

Why is SIM-Lock installed on phones?

Manufacturers cell phones encode devices at the request of mobile operators. Using SIM-Lock, they force the user to connect to the GSM network of this particular operator. For example, the mobile operator MegaFon orders a batch of phones from the factory under its MegaFon brand and asks the manufacturer to build a SIM-Lock into the devices, allowing the use only of SIM cards from MegaFon.

Such phones are usually sold at very large discounts (sometimes only 15-20% of the real cost) complete with a SIM card from a certain operator, and most often with an unfavorable communication tariff.

Due to the bargain price, the mobile operator, the same MegaFon, receives a large number of new subscribers who will be forced to connect to its network at a specific tariff. Revenues from the sale of cellular services will cover the amount of the discount provided to the buyer.

How to remove SIM-Lock on your phone?

To remove SIM-Lock, you must enter a special code on the keypad. It is set individually for each device sold and is a long digital combination. There are legal and illegal ways to get this code to remove SIM-Lock.

There is only one legal way - contact the seller or the service center of the phone manufacturer. For each SIM-Lock code, the seller sets a validity period during which it is planned to “recapture” the discount provided. Usually this period is 2-2.5 years, more precisely you can find out from the seller or consultant at the service center. After the expiration of the period, the blocking can be removed at the request of the buyer.

There are many illegal methods, and none of them gives a 100% guarantee of getting rid of SIM-Lock. Currently, there is a lot of information floating around the Internet on how to remove SIM-Lock on the phone of one or another mobile operator, including MegaFon. But manufacturers are constantly working to improve encoding methods. Each subsequent model or batch is flashed in a more reliable way, so the proposed “hacker” options quickly become outdated.

However, you can try your luck and choose the appropriate option to remove the hated SIM-Lock from your MegaFon.

How to remove SIM-Lock with the help of specialists?

You can contact one of the cell phone repair companies. The fact is that the SIM-Lock code data is stored in the device’s memory. The average user is unlikely to understand complex software settings your MegaFon phone, but repair technicians usually know where this data is stitched.

Since the procedure for disabling SIM-Lock yourself is illegal, some workshops may refuse you, but if you wish, you will find an office that turns a blind eye to this, or agree with a specific master to crack your code unofficially, bypassing the manual.

It is important to remember that if the hack is carried out incorrectly, you will not be able to repair the phone under the MegaFon warranty, since the breakdown will be caused by mechanical intervention, which specialists will immediately detect warranty center. Also, you are unlikely to be able to make an official claim to an unscrupulous repairman for a broken phone.

The second way is to find out the special NCK code of your phone, which can be used to remove the SIM-Lock. The fact is that this code is not just a set of numbers, but a certain sequence in which the data of your phone and the manufacturer and MegaFon are encrypted. All NCK codes are stored in special databases by the mobile operator.

Some craftsmen can calculate NCK codes based on IMEI data and the name of the manufacturer. People who have access to databases of mobile operators, including MegaFon, periodically sell them outright or provide codes themselves upon request for a fee. On the Internet, if you wish, you can find many similar offers for little money. There is a risk of running into scammers, but more often than not you will still receive the coveted code.

How to remove SIM-Lock yourself?

On special forums and websites, advanced users often share information on how to bypass certain phone settings. You can search for information about hacking SIM-Lock on such web resources. It is important to understand that for such operations you must be technically savvy.

You should not thoughtlessly try all the proposed methods, since on some MegaFon models the manufacturer provides for complete blocking of the device in the event of an attempt to illegally interfere with the software part. You can remove such a blocking only at a service center for money.

In addition, it is important to remember that any manipulation of the phone's programming bypassing the manufacturer is illegal and can lead to trouble, especially in countries where manufacturer's rights laws are strictly enforced.

Video. How to remove SIM-Lock on MegaFon?

A special case of Sim-Lock can be SP lock (Service Provider Lock) - a mobile operator code that allows this phone to work only with SIM cards from this operator. SP lock is carried out by binding the device to the MCC and MNC values ​​(Mobile Country Code/country code and Mobile Network Code/operator code) on the SIM card. When turned on, the phone checks whether these codes match the SIM cards not what is written in its memory, and as a result either continues the normal switching process, or refuses to work, showing on the display that “SIM card is not suitable”, “ Sim card not valid" and so on.

Blocking allows the service provider mobile communications, avoid using mobile phones purchased from her in the networks of other operators; often blocked phones are sold at significant discounts, with the difference in the cost of the phone covered by the telecom operator, who hopes to recoup its costs from the future expenses of the subscriber purchasing the blocked terminal.

The blocking can also be installed by the manufacturer, who usually sell locked mobile phones. As a rule, companies selling locked mobile communication devices also offer the opportunity to unlock them for a certain fee or upon expiration of the contract (for example, an agreement between the client and the cellular operator.)

You can unlock the phone by entering a special unlocking code - a certain digital sequence, which the telecom operator informs the client after the expiration of the contract. This code can be a function of the phone's IMEI (and thus can be calculated) or it can be hardcoded into the phone's flash chip (and then it will only be recognized through the manufacturer's internal database).

In most cases, it is possible to remove Sim-Lock (unlock mobile phone) without the participation of a mobile operator, and in some cases, on the contrary, also blocking under the operator, using software and hardware products in service centers or mobile phone repair shops, as well as in other ways.

You can independently calculate the unlock code for some series of phones using a special calculator (for example, for Siemens C/M/S35 phones and the entire Nokia DCT-4 and BB5 series). However, manufacturers prefer to maintain databases of these codes, to which only service centers have access.

Another unlocking method is the so-called partial flashing. At the same time, the mobile phone firmware bypasses the blocking check. However, more or less new models have a built-in firmware checksum check, and if a discrepancy is detected, the phone stops working.

The most correct unlocking method can be considered writing “clean” blocks with missing information about the SP-lock into the EEPROM of a mobile phone. The procedure for changing EEPROM is quite complex and differs from model to model.

In many modern mobile phone models, unlocking requires the use of test points on the mobile phone board.

The question of the legality of code removal

As for the CIS countries, there is not a single specific law or act prohibiting the removal of operator blocking from cell phones.

Notes

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See what "SIM lock" is in other dictionaries:

Sim-Lock Sim lock

- ist ein Begriff aus dem Mobilfunkbereich und beschreibt die Einschränkung der Nutzbarkeit des Mobilfunkgerätes auf SIM Karten, die bestimmte Kriterien erfüllen. Zur Zeit können Mobiltelefone so gesperrt werden, dass sie nur SIM Karten von… … Deutsch Wikipedia

SIM lock SIM Lock

- das; s, s aus gleichbed. engl. SIM lock zu SIM, vgl. SIM Card u. lock »Schloss«, dies aus aengl. locc Sperre des Handys, die verhindert, dass das betreffende Mobiltelefon mit einer anderen SIM Karte funktioniert als der eigenen … Das große Fremdwörterbuch SIM lock

SIM lock- A SIM lock, simlock, network lock or subsidy lock is a capability built into GSM phones by mobile phone manufacturers. Network providers use this capability to restrict the use of these phones to specific countries and network providers.… … Wikipedia

- ist ein Begriff aus dem Mobilfunkbereich und beschreibt die Einschränkung der Nutzbarkeit des Mobilfunkgerätes auf SIM Karten, die bestimmte Kriterien erfüllen. Zur Zeit können Mobiltelefone so gesperrt werden, dass sie nur SIM Karten von… … Deutsch Wikipedia- Der SIM Lock, auch Netzcode, Netcode (beides nicht zu verwechseln mit Netzcode als „network code“, zu deutsch etwa: Netzwerk Programmcode) und Beschränkungscode (Nokia) genannt, ist ein Begriff aus dem Mobilfunk Bereich und beschreibt die… … Deutsch Wikipedia - ● en n. m. COMM Verrou à la carte SIM. Voir simlockage…

Dictionnaire d'informatique francophone Determining the presence of a SIM lock - SIM lock software limitation for the operation of a mobile phone within a certain country, network (including under a certain virtual operator), or with a certain SIM type

cards Contents 1 Reasons for blocking phones 2 ... ... Wikipedia Removing SIM lock

- ... Wikipedia- SIM Karten Die SIM Karte (Subscriber Identity Module) ist eine Chipkarte, die in ein Mobiletelefon eingesteckt wird und zur Identifikation des Nutzers im Netz dient. Mit ihr stellen Mobilfunkanbieter Teilnehmern mobile Telefonanschlüsse und… … Deutsch Wikipedia

- das; s, s aus gleichbed. engl. SIM lock zu SIM, vgl. SIM Card u. lock »Schloss«, dies aus aengl. locc Sperre des Handys, die verhindert, dass das betreffende Mobiltelefon mit einer anderen SIM Karte funktioniert als der eigenen … Das große Fremdwörterbuch, simlock, network lock or subsidy lock is a special type of phone lock, the essence of which is that the device can only work with SIM cards a specific operator ( SP lock or Service Provider Lock) or within a specific country. How to bypass these restrictions (do sim unlock ), you can read in this post, but first a few words about the problem itself.

On Android smartphones are blocked using two codes - country code (MCC) And operator code (MNC). When starting up, the phone recognizes both codes shown on SIM card. If they do not match the values ​​specified by the operator, the device does not start and displays a message stating that SIM card doesn't fit. If both codes correspond to the specified parameters, then the smartphone boots into normal operating mode. Can also be used as a blocker MSIN- code for each specific SIM-cards. In this case Android the smartphone will only work with one single SIM-card.

- das; s, s aus gleichbed. engl. SIM lock zu SIM, vgl. SIM Card u. lock »Schloss«, dies aus aengl. locc Sperre des Handys, die verhindert, dass das betreffende Mobiltelefon mit einer anderen SIM Karte funktioniert als der eigenen … Das große Fremdwörterbuch often used by operators on phones that are sold cheaper than the factory price, but with the obligation to use a contract for the provision of communication services of this operator within the specified time. Thus, the operator covers the costs associated with purchasing a smartphone and then selling it at a lower price: due to blocking Android the user simply cannot change SIM card, and use the services of a competing mobile communications provider.

To unlock Android smartphone ( sim unlock) you must use a special code. As a rule, when the contract expires, the operator informs the user about it, but for this you will have to wait at least a year, or even two. But the problem can be solved much faster. First, mobile operators sell unlock codes. Most likely, you will simply have to cover the costs incurred by the operator when selling the phone at a reduced price. You can also use special services and applications, but more on that a little later.

Separately, it is worth noting the legality of the procedure. On the territory of the CIS countries, there is not a single law that would prohibit sim unlock. Moreover, there is legislative practice in the world, according to which the sale of phones with locked SIM cards prohibited.

Basic methods of unlocking Android smartphones (sim unlock)

This is an application that allows you to unlock smartphones and tablets Samsung Galaxy (S, S2, S3, S4, Tab, Tab2, Note, Note2). In this case, no code is needed, and unlocking is carried out in a couple of taps. The application itself is free, but you will have to pay to remove restrictions. also allows you to create and restore backups EFS and provides complete information about.

nv/lock

Unlock.io from SDWebs But this application works on a slightly different principle. It provides unlock codes. On the page in Google Play it is written that from SDWebs works with all models, Nokia, Samsung, Sony, Alcatel, LG, Motorola, Samsung HTC, Ericsson, Huawei, Blackberry iPhone . Users complain that the cost of the service is too high, but this did not stop it from gaining more than 20 thousand installations. Payment is made via PayPal

. And to receive the code, you need to enter information about your Android smartphone and pay for the service. Android Similar to the application described above. Receives the unlock code for the following

• Nokia smartphones:
• Alcatel(Galaxy S2, Galaxy S3, Note, Note2 and )
• Motorola(Optimus L3, L7 and L9)
• LG(One S, Inspire, Desire HD and Sensation)
• Huawei(RAZR XT, ATRIX HD, Defy mini, Motoluxe)
• Ericsson(Torch 9860, Curve 8520, Bold 9780)

(Ascend, Huawei U8650, Fusion) Android The cost of the unlock code in both cases depends on the model . Users complain that the cost of the service is too high, but this did not stop it from gaining more than 20 thousand installations. Payment is made via smartphone and operator country. Payment can also be made via