Samsung SIM Network Unlock Guide


Welcome to the Samsung SIM Network Unlock Guide page. Unlocking Samsung mobile phones is confusing and difficult to understand for first time unlockers. On this page, we tried to answer the most frequently asked questions and tried to clarify the frequently encountered problems. You will find the answer to almost every question you want to know about Samsung mobile phone unlocking, and after reading the article, you will have enough information about how to unlock a Samsung phone.

What is SIM Samsung Network Lock

Some Carriers activate SIM network lock on some of their Samsung mobile devices and restrict them to their SIM Cards and services. SIM locked devices work only with that Carrier's SIM cards and services. SIM Locked phones will not work with other carriers' unless this lock is removed.

Samsung Unlock
How is SIM Lock Activated?

When the devices are programmed at the factory, the SIM Lock is activated by the manufacturer (Samsung), upon the request of the carrier who sells the device. These devices are programmed to work with the SIM cards of that company. When a SIM card is inserted into the phone, it checks whether the SIM card belongs to the authorized company. If an unauthorized carrier SIM card is used in the phone, the phone will ask you to enter the SIM Network unlock PIN code. This code confirms that other Carrier's SIM cards will work on the phone.

Why Providers Lock Phones?

Many Carriers offer various promotions and discounts to make their services more attractive and to encourage mobile service users to use their services. These may be the discounts they offer for phones, or they may be plans that offer long-term and discounted mobile tariffs.
In order to guarantee that they can redeem these discounts, they want these phones to be used with their own services, so they aim to keep the users on their network by activating the SIM Lock for certain periods of time.
This is not the only reason. Losing phones in shops or during shipping is also another problem for providers. In order to prevent this, they aim to make these phones useless by locking them to their networks when needed
Some malicious sellers working in their stores may show the phones to be sold on fictitious people and cause financial damage to the Carriers. In such cases, they aim to make the phone unusable by locking it.
The above reasons may be useful for carriers and providers, and it is possible to qualify some of them, but this may put people who make their payments on time or who buy second-hand phones in a difficult situation.

What Does SIM Lock Mean for Users?

SIM lock usually allows users to buy a cheaper and a discount phone. SIM Locked phones can be sold cheaper than others or offer with more affordable tariff plans.

If you don't want to change your Carrier, it's usually fine. However, if you are not satisfied with your Carrier and want to switch to another and use their services, SIM Lock will prevent it.
If you want to sell your phone as second hand and if the buyer can not remove the Lock, they will not be able to use another Carriers SIM cards and services.

When you travel to another country and want to use a cheap local prepaid SIM card instead of using expensive roaming plans, SIM Lock will not allow this.

Can SIM lock be Removed?

SIM lock can be removed from almost any phone. SIM lock removal is easy for most phones. Some models may require some effort, but it is still possible to unlock them. Most phones on the market can be unlocked by entering a SIM network unlock code, but a few carrier models may require unlocking software.

How SIM Lock is Removed?

Majority of mobile devices in the market can be unlocked with SIM network Unlock PIN Code. When you try to use a SIM card of another mobile operator (Carrier) in your phone, it usually asks you to enter the SIM network Unlock (PIN, Key .etc) Code. If you have the valid code and enter it, your phone will be unlocked permanently.

How SIM Network Unlock PIN Code is Obtained?

When the phones are programmed at the factory, upon the request of some mobile operators (carriers), the manufacturer activates the SIM lock and assigns a SIM unlock code that can unlock it when necessary. Manufacturers keep backups of these codes in their own databases. These codes can be shared with carriers (providers), service centers and authorized data providers. We obtain the codes through our data providers and provide them to our users.

Will Manufacturers or Carrier Unlock the Phone?

Manufacturers do not unlock phones. They activate the SIM Lock at the request of the Carriers and tell the end users to contact the company who sold the phone.
Carriers have different unlock policies. Some Carriers can unlock phones under certain conditions and you must meet these conditions. Each Carrier has different conditions for Unlock Eligibility and they will not unlock unless you meet these conditions. E.g.;
- If you bought your phone on a mobile contract plan, they won't unlock before the contract expires.
- If you have not completed the payment of your phone and plan, or if you have unpaid bills, they will not unlock without paying all your bills.
- They offer the condition of being a customer for a certain period of time in the plan you bought the phone (some Carries require being an active customer for at least 1 year), they do not unlock the phone before the period specified in the Contract expires.

-They may not able to unlock due to their technical problems. They may not have a code in their database or may not provide it due their technical issues or their code may not work if the phone has software issues.

-Carriers can request the information of the person who bought the phone or the account where the phone is registered. If you bought a used phone from Ebay, Amazon, BestBuy or any other platform, you may not be able to know the original account holder's information, in which case Carriers will not provide an unlock code.

What If I Can't Unlock Phone With My Carrier?

You can use third party unlock sites like us. Third party sites have some advantages.
- Third party sites specialize in unlocking and can obtain codes from many different database sources. We obtain codes mostly from manufacturer databases through data providers and provide them to our users.
- Unlock Eligibility conditions are mostly not required. We can obtain the codes that the Carries cannot obtain, by checking different databases.
- In cases where it is not possible to unlock the phone with a code, we can also provide unlock software that works with a USB connection, so you can unlock your phone very quickly.
- We can provide codes much faster and in less time than Carrier and Providers. You won't have to wait for weeks for the unlock code.

Technical Questions
How Does the Unlock Process Work?

Unlocking actually a simple technical process. When device manufacturer (Samsung) activate the SIM Lock, they generate a random unlock code and they assign this code into the phone. This unlock code will disable SIM Network Lock once entered and the Phone will no longer checks if a SIM card is allowed or not and it allows all compatible SIM cards to work with the phone.
It can be said that this code will confirm that the person using the phone is authorized to unlock the phone. In other words, This code confirms that you meet the unlock eligibility conditions and allowed to remove the SIM lock on the phone. The unlocking process is simple. Insert another Carrier SIM card into the phone and You will be prompted to enter the SIM Network unlock PIN code. Inf you valid code, you can type it on your phone's keyboard and complete the process. Unlocking process is permanent, you will not be prompted to re-enter the code.

What are the Difficulties of the Unlock Process?

It can be said that the biggest challenge for phone users is to obtain the valid code.

However, some difficulties may rarely be encountered. Some phones may not accept this code due to software issues on the phones but this is usually very rare and can usually be fixed by factory resetting the phone (by doing a master factory reset on the phone).
Replaced or refurbished phones may be assigned a code different from the codes assigned by the manufacturer due to the firmware update in the repair service, in this case the unlock code may not work. However, if the phones are repaired at the manufacturer's authorized services, this is usually not a problem because even if a new code is assigned at the service center, this code is updated in the manufacturer's database and the old code is replaced with the new one, so this problem does not occur on phones repaired at authorized services.
Some phones cannot be unlocked with a code, in which case it may be necessary to use a suitable unlock software. The phone can be unlocked via the unlock software by connecting it to a PC with a USB cable.
With professional help, almost any phone on the market can be unlocked. It is unlikely that such problems will be encountered when help is obtained from sites like us that provide unlock services and are specialized in this field.

Can Every Samsung Be Unlocked With Code?

Most phones on the market can be unlocked with unlock code. Some USA carriers have developed Unlock Apps for unlocking which works via database update, but it is also a fairly easy process. We make a request through our data provider and can easily unlock these phones by making the necessary update in the appropriate database.

If Phone Can Only Be Unlocked With Special Unlock App?

Some USA Carriers (T-Mobile, Metro, Sprint, Straight Talk, Tracfone .etc) have developed special Unlock App for unlocking. These models connect to Carrier's database and check whether the unlock eligibility conditions are met. They allow other SIM cards to work if the conditions are met. However, it is not always possible to unlock using these applications. For example, if you like and buy a second-hand or used phone from Ebay, Amazon, Bestbuy or another platform, but the previous owner of the phone has not paid the bills or completed the phone's installment plan, the phone will not be unlocked. They ask you to pay the Bills but you cannot unlock it this way as you are not able to pay the bills of the previous owner of the phone. Or if you want to unlock it without waiting for the contract to expire, you cannot unlock your phone. In this case, you can get help from third party sites like us. You can easily unlock your phone by connecting it to a PC with a USB cable and using our unlock software. When you use Unlock Software, you don't need to check eligibility conditions or wait for conditions to be met.

What is Samsung SIM Network Unlock PIN Code?

Samsung SIM Network Unlock PIN is the code that removes the SIM lock of the phone and allows the phone to be used with other carriers.

This code is randomly generated during the prudction and programmed into the phone. In cases where the SIM unlock of the phone is required, it is entered into the device and the device checks whether the code is correct. If the correct code is entered, the device is unlocked permanently and no longer checks whether SIM cards of other carriers are allowed. After entering the code, SIM cards of all carriers can be used with the device.

This code can sometimes be confused with the 4 digit SIM card PIN code. The reason for this confusion is due to the naming of the codes. The way to clear this confusion is to check if the code belongs to the device or SIM card.

4 Digit SIM Card PIN (Personal Identification Number) belongs to the SIM card and is stored on the SIM card. It only grants access to the SIM card. if enabled, it verifies that you are authorized to use the SIM card. If SIM Card PIN code activated, it will ask you to enter this code every time on every phone. It doesn't matter if the phone is locked or not because it's a phone-independent code.

8 or 16 Digit SIM Network Unlock PIN belongs to the device and is stored in the device. If activated by Carrier, SIM cards provided by Carrier will work and other Carrier's cards will not work on the phone. If you want to use the phone with other Carrie's SIM cards, you need to enter this code on the phone when prompted. The code will validate that you are authorized to unlock the phone.

Other Questions
Does Unlocking Void the Warranty?

Unlocking your phone does not void the warranty. The warranty is provided by the phone manufacturers and the manufacturer's authorized services do not check whether the phone is unlocked or not.
If your phone does not have any other technical faults caused by the user, unlocking does not affect the warranty of the phone, so you do not have to worry about the warranty because the unlocking process does not make any changes to the phone's software or hardware.

Is Unlocking Safe?

The Unlocking methods we recommend are absolutely safe. We offer three different unlocking methods.
- The most popular and most used method is entering the SIM Network unlock code and does not cause any change in your phone's software or hardware. This method is preferred by most manufacturers, so it is safe.
- The second method is remote database update on Apple Iphones and phones that store the SIM lock information in the online database with Unlock App. This also does not cause any change in the phone. Only the SIM lock status of the phone is updated as Unlocked in remote database and the process is completed. It is the safest method on the market.

- The third method is to connect the device to the PC via USB and unlock it with a software. In this method, the software reads the unlock code from the device's memory and shows it to you on the dialog screen. The process is completed by entering the unlock code on the phone. The software only reads from the device and does not make any changes to the phone's software or hardware. So it is a safe method.
All unlock methods we offer are safe and do not affect the device's warranty.

Unlocking Instructions
How to Unlock Your Samsung Mobile Phone

SIM unlocking Samsung phones is usually an easy process. Phones sold by some USA Carriers may require little bit effort. If your phone is locked to one of the USA carriers, we recommend that you visit the carrier unlock instructions page for more detailed information.

Before starting to unlock, you should have a SIM from a different carrier other than your phone is locked to.

Insert a different SIM card into your phone and check the message on the screen. If your phone asks for SIM Network Unlock PIN, the code you need is Network Unlock Code (NCK or Network Control Key). If your phone is asking for a Service Provider Unlock PIN, the code you need is the Service Provider Unlock Code (SPCK or Service Provider Control Key).

If you have ordered unlock codes on our site, we will show you which codes we can provide at the time of ordering. In this way, you can get the code you need and unlock your phone easily.

If you enter too many invalid Network unlock or service provider unlock codes on your phone, this will reset the code entry counter of your phone and it will ask you to enter the MCK (Master Reset Key) code (We can provide this code with most of our services).

To give a brief information about MCK, Samsung Phones have a code entry country and allow you to enter the valid code 10 times. If you enter an incorrect network or service provider code 10 times in a row, your phone's code counter will be reset and will no longer allow you to enter the code. Even if you obtain and enter a valid NCK (SIM Network Unlock PIN) code at this stage, your phone will not accept this code and will ask you to enter an MCK (Master Reset Key) code.

How to Enter Samsung Unlock Codes:

Insert a SIM card from another carrier (provider) into your phone and power on your phone. On SIM Locked phones, your phone will ask you to enter a SIM Network Unlock PIN or Service Provider Unlock PIN. If Network Unlock PIN code is asked, type this code on your phone's keyboard and press OK. Your phone will permanently unlocked and will no longer ask you to enter this code.

If the Service Provider PIN code is asked, enter the SPCK code in the same way, tab the Ok key and complete the unlock process.

If your phone asks you to enter MCK or Master Reset Key code, enter the MCK code and click OK. At this stage, you may receive a network unlock uncessfull message, but don't worry, even if you enter the correct MCK, the phone may show this message. After entering the code, your Phone will ask you to re-enter the NCK (SIM network unlock PIN). Enter the NCK (network unlock code) and your phone will unlock permanently.

If you encounter problems while entering the MCK or your phone does not accept the code, you can solve the problem by performing a Master Factory Reset (Full Factory Reset) after backing up the data on your phone. Master Factory reset solves almost all of the problems that occur in code entry.