SIM Network Unlock Guide

If you have a SIM locked mobile device and don't know how to unlock it, you can find all the details about SIM unlock guide in this article. SIM Unlocking may be confusing for people who want to unlock a phone for the first time, how to do it and where to start may be an unknown issue, but there is no need to worry about it. When you read our article, you will find the answers to your questions and you will have enough information on how to do it.

What is SIM Network Lock

SIM network lock is a lock activated by mobile device manufacturers' (Samsung, Apple .etc) at the request of your mobile carrier who sells the device. When this lock is activated, your device will only work with specific carriers' SIMs and services. SIM Network lock will prevent you to use other mobile carriers' SIMs and services with your device.

If you have a SIM-locked mobile phone and you want to unlock it, you can check the unlock services for your device from the link below.

Order SIM Unlock Service

Unlock Info
Why is the SIM Lock Activated?

There are various reasons for this. We will try to explain some of them here.

- Carriers can offer special discounts or sell them with a specific contract (mobile plan) to make their mobile devices more attractive. Such promotions can be useful to compete with other companies and gain new users, however they may want to ensure that they can redeem these discounts, so having their phones locked to their network and SIMs is a way to guarantee users to use their services longer.
- This may also provide them financial benefits when they sell mobile phones with a certain contract and payment plan. Users won't able to use their phones with other carriers before completing their payments or terminating their plan or contract.

- Even if the phone is sold as second hand, the new buyer will not only be able to use other SIMs and mobile providers (other than originaly locked).
- Another reason is that it allows phones to be blocked in case they are lost in their shop or in transit.
Locking a mobile phone offers some benefits for mobile carriers, but it can hurt users who buy their phones second hand or who want to switch to other mobile providers if they want.

What are the Challenges for Users?

Although it protects mobile carriers against risks, it can cause difficulties for well-intentioned device users.
- You bought a second-hand phone and found out that it is locked, if the company that sold the phone does not help you to unlock it, the mobile phone may become useless.
- As a user you make your payments regulary, but you are not satisfied with your current carrier and their services and you want to use the services of another provider, but the SIM lock may prevent you.
- You may encounter Similar problems when you receive a gift phone or want to gift your phone to someone.
- If you went abroad and you want to buy a local prepaid SIM card and use it cheaply instead of paying expensive roaming fees, this lock may prevent you.

Can the SIM lock be removed?

Yes, it can be removed. Removing the SIM lock is mostly an easy process. In general, it is easy for most devices, although some models may require little effort on rare occasions.
Most phones on the market can be unlocked by entering the SIM network unlock code, removing the SIM lock and using it with other mobile carriers' SIM cards without any restrictions..
Although database updates are required for models that store Lock information in an Online database, such as the Apple Iphone, this is actually easy when you get help from professional companies like us.

Does the device manufacturer or Carrier remove the Lock?

Device manufacturers do not unlock end users' mobile phones and usually advice users to contact to the mobile operator (Carrier) that sells the phone.

Carriers have their own unlock policies. If you meet eligibility conditions, they may unlock it, but they usually require you to be their customer for a certain time and provide the account information of the original user. If you have received a used or gift phone, you may not be able to know the account information of the phone. In addition, carriers may not store the unlock information of old models in their databases, and even if you meet these conditions, they may not have the required unlock code. Some carriers say that users who meet eligibility conditions will unlock their phones, which may not always be possible.

If Carrier (Provider) Doesn't Unlock Phone

In this case, you can choose third-party websites such as ours that offer an unlock service.

We would like to give brief information to users who are wondering how the process is.

SIM Network unlock codes are assigned by device manufacturer during the production and these codes are stored in the manufacturers' device information databases. Manufacturers allows access to these codes by authorized users (carriers, authorized service center, data provider .etc). We obtain the codes through our data providers using the Imei numbers of the devices and deliver them to the users who request them. The codes we provide are the original codes assigned by the manufacturer, so we guarantee that these codes will unlock your mobile device..

Can I Trust Third Party Sites

You can trust honest sellers who take their job seriously, but that doesn't mean everyone is trustworthy. You can read the experiences of other users. You may be skeptical if the seller offers a price well below the service price in the market. We also recommend checking what you paid for before ordering, some sites say you will pay to check "unlock eligibility terms" (this is not an unlock service and won't actually unlock your phone), which you can use to find out if the phone can be unlocked if it's a reasonable fee. We also recommend paying with buyer-protected methods such as PayPal, rather than Bitcoin or credit card.

Unlocking Technical information
How SIM Network Unlocking Works

When mobile devices (phones, tablets. etc) are first manufactured, manufacturers, at the request of the carriers, activate SIM lock on the phone that contains the carrier's information and allows it to work only with their SIM cards. The phone software checks whether the SIM card will work with the phone when a new SIM card is inserted. If you insert an original Carrier SIM card the phone will work fine but when you insert an unauthorized SIM card the phone will ask you to enter the Network unlock code or will show SIM locked message. This is actually a code confirming that you are authorized to use other providers' SIMs for the phone. To unlock the phone, Simply enter the code and your device will instantly be unlocked permanently and it will not ask you to enter this code again.

If it does not ask for an unlock code but shows only SIM locked message, it can easly be unlocked using an unlocking software (via USB connection to PC).

How SIM Network Unlock Codes Obtained

If your carrier provides this code, they will search their device database for the phone's Imei number to check if the code is stored on their system. If the code is not in their system, they may request it from the manufacturer. If they do not request it from the manufacturer, they may say that they do not have the code.

Third party sites like us get the codes from manufacturer device databases through data providers. Mobile device manufacturers always keep backups of codes in their databases and allow authorized parties to access to these codes. By using authorized data providers, we get the codes from the manufacturer's databases and deliver them to the requested users.

How Long does it Take to Get Codes

Receiving the code varies by brand and manufacturer. When an unlock code is requested, some manufacturers check and confirm this request. This approval period varies by manufacturer, carrier and phone brand. It takes as little as an hour to obtain codes from some device databases, while for others it can take up to 3 days for approval.

Other Unlocking Questions
Is unlocking legal?

Unlocking is completely legal. Since the phone is yours, you can use it as you wish. No one can hold you responsible for any changes you make to your phone as long as you complete the payment of your phone.

How Safe Is Unlocking?

The first preferred method by most manufacturers is SIM network unlock code method and also used by carriers and service centers. You enter the code on your phone via the keyboard and unlock the phone. With this method, it is not possible to damage your phone and its software. The SIM Network unlock Code method is the safest unlock method on the market.

How to Make Sure unlock Code is Valid?

If the code is obtained from carrier or manufacturer mobile device databases, it is very unlikely that the code will not work. The only way to be sure that the code is correct is to try and check if it unlocks the phone. If you have received an incorrect code, your phone will not accept it. If you are purchasing the code from a third party site, be sure to check the site's return policy. If they offer a refund if the code doesn't work, it's okay to try, but if they give you the wrong code and don't refund, you can apply to your credit card company for a refund. We recommend that you do not shop with cryptocurrencies such as Bitcoin, in this case your chance of getting a refund is very difficult.

Is there a chance that the code will not work?

If you have requested or ordered a wrong code, it is possible that it may not work. For example, your phone is not SIM locked, but the 4 digits PIN of the SIM card is required. If you use the Network unlock code for the SIM card's own code, the network unlock code will not work because the Network Unlock Code is only needed for your phone to work with other providers. But the 4 digits PIN of the SIM card has nothing to do with the phone, it is only needed for local access to the SIM card. Likewise, if a user code that allows local access to your phone is required, the network unlock code may not work.
In addition, if your phone have been repaired in unauthorized services and a SIM locked firmware (which can be called the phone's software) is installed on phone that, the Network Unlock Code may be different from the one assigned by the manufacturer, in this case the manufacturer code may not work (If your phone is repaired at an authorized service center, it is fine because even if the code is changed, the phone will be updated in the manufacturer's database. and the old code is replaced with the new one).

Is SIM Network Unlock PIN code and SIM Card PIN Code Different?

This issue is may be confusing for some people. The 4-digit PIN code, which is the code of the SIM card, with the 8 or 16 digit SIM network Unlock PIN code of the Phone.
The SIM Card's 4 digits PIN code is only required for local access to the SIM card. The code is stored in the memory of the SIM card and when the SIM card is inserted in another phone, it remains on that SIM card.
The Phone's SIM Network Unlock PIN is stored in the phone's memory and has nothing to do with the SIM card. This lock allows SIM cards of a specific mobile carrier to work and does not allow the phone to work with other providers services.
If you want to use your phone with other carriers, you will need the "SIM Network Unlock PIN" code.

Unlocking Instruction
How to Enter Unlock Codes on my Phone

Although the unlock instructions may vary depending on the brand, they are mostly Similar. For most brands, another carrier's SIM card is inserted into the device and the process is completed by entering the unlock code. The differences are usually due to the descriptive terms used by different manufacturers for the SIM Network Unlock code. We want to give general information for brands.

Apple Iphones:

Iphones have advanced software and Online services, so they often store information in Online databases. Iphones store SIM lock information in Apple or Carrier databases, so they often don't ask for an unlock code. When you insert a foreign SIM into your phone, you will receive an 'Invalid SIM Card' or 'SIM not Supported' warning. Unlocking of Iphones is done with database update. The SIM lock information is updated as 'Unlocked' via the appropriate data provider and the user connects his phone to the Internet via WI-FI and automatically updates the Lock information in the phone's local memory. No action is required for this. After updating his phone's SIM lock status, we will send a message and you will connect the phone to the Internet and confirm it automatically. Iphone is one of the easiest phones to unlock.


In Alcatel Phones, the unlock code is mostly defined as Network Unlock Key. When the foreign SIM is inserted, it will ask you to enter the Network Unlock Key. You can complete the process by entering your unlock code.


HTC Phones will ask you to enter Network unlock code or SIM unlock code for unlock. When you get the Enter code message, type your unlock code to complete unlock process.


When you insert a SIM card from another operator in your phone, your Nokia phone will ask you to enter the SIM Network Unlock Code. By typing the code, you can easily complete the unlock process.


Most LG phones are unlocked with the network unlock code. In rare cases, some phones may ask for the service provider code. Our LG unlock code service provides both codes, so you can enter the code asked and unlock your phone instantly.


Your Huawei phone will ask you to enter the SIM Unlock code. This code is actually the SIM network unlock code. In rare cases, some phones may ask for the Service provider code. If you need this code, you can get it by choosing the appropriate service when ordering. For Unlock, it is sufficient to enter the code when requested.


Samsung phones are unlocked with the 'SIM Network Unlock PIN' code. After receiving the valid code, enter the code on your phone when prompted and your phone will be unlocked instantly. Unlock is permanent, you do not need to re-enter the code.

Some Samsung Phones may have 'Service Provider Unlock Code' active. In this case, you need to enter the service provider code. We provide this code with some of our services, if you need the service provider code, you can choose the service that provides this code during the order.

On Samsung phones, if you enter the unlock code incorrectly many times, the unlock code entry counter on your phone will be reset and you will be asked to enter the MCK (Master Reset Key). If you need MCK, you can order it by selecting the appropriate service.


ZTE phones are unlocked with the network unlock code. When your phone asks you to enter the code, you can enter the unlock code and complete the unlock process.

As you can see, unlocking the phone after obtaining the valid code is quite easy and does not require any technical knowledge. However, if you encounter any difficulties, please do not hesitate to contact us. We will do our best to solve the problem.

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