Crack Sim Card


Cracking SIM cards with side-channel attacks. August 11, 2015 by Rambus Press Leave a Comment. A Jiao Tong University researcher has exploited side-channel attack techniques to crack the encryption codes protecting 3G and 4G cards. “ The cards use AES-128, which is supposed to be virtually unbeatable by a brute-force attack, but turns out. You cannot crack a SIM card to get infinitely free internet connection. Whether or not a certain SIM can access the internet is decided by Digital Control Unit at the cellular tower.

A subscriber identity module or subscriber identification module, widely known as a SIM card, is an integrated circuit running a card operating system that is intended to securely store the international mobile subscriber identity number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices. It is also possible to store contact information on many SIM cards. Answer (1 of 5): If you have a mobile SIM card for a cellular phone and want to hack it for free internet, open the phone, then go to the menu, and then press 0 which will open up the service menu, the code is. In order to unlock the SIM card of your Android phone, you must first obtain IMEI number, which is the unique identifier to your phone. You can find this code by typing.#06# on dial pad. Alternatively go to Settings - About Phone - Status - IMEI. Then give this IMEI code to the operator.

1. What is a locked SIM card?

Majorly securing your phone with a PIN code, your SIM card automatically lock itself if your device is not in use or if you enter a wrong PIN code on screen interface. Because a PIN code can be easily lost or hacked, official carriers developed new advanced technologies on phones featuring fingerprint and facial detection. Even if you locked your device, you will be able to unlock it without any password required. Nevertheless, the process to reset your code must be done manually by contacting your official carrier if your phone is displaying a message.

2. How to unlock your SIM card?

Specifically, a smartphone unlocked aims to unlock the network by allowing the user to insert the SIM card of any operator. This is a common and secure practice for phones purchased from a carrier. There are different ways of unlocking and each of them are synchronized as explained above.

Find your IMEI number

To unlock your smartphone, you will need first to know your International Mobile Equipment Identity (IMEI) code identifying your phone. This number is indicated either on the battery, purchase invoice of your mobile or on its original box. To locate it, a special code must be type by pressing * # 06 # on the keypad of your phone, and the number will appear automatically on your screen. By doing so, you will be able to contact your carrier as referred in the next step.

Contact your carrier

If you attempt multiple times to log-in your phone, don’t remember your password and accidentally lock out your device, your second step is contacting your official carrier. Easy to find on a contact list, the customer service will introduce you straightforward steps and guide you for unlocking your phone after you checked all relevant information's and provided your IMEI number.

Even if the process seems easy, some requirements are generally set for unlocking your SIM card. By meaning so, your phone mustn’t be reported or stolen, must be fully paid off, a small fee must be due in order to get an unlock code and your SIM card must be unlock. Interface relay to provide your PUK code, your confirmation code will be sent as explained above.

Get your PUK code

In case of theft, PUK code is an effective solution to prevent the thief using your mobile and abusing it in a way harmful to you. It is essential to enter your PUK code if you want to unlock your mobile. Generally, you can find this code in different ways such as finding your operator contract, calling customer service, using Internet or going to your official carrier store.

Crack Sim Card

Once you have obtained your PUK code from your official carrier, you can enter it on your phone so that your SIM card will be operational and functional again. However, that is recommended you change your SIM card before unlocking on Apple or Android versions. But make sure you insert your password correctly, if an error message occurred, move on next step.

Use a third Party Application

If you can’t reach customer service or if you are not able to move forward in the next process, some specifics third Party Applications such as Unlock Base were developed for unlocking universal phones. Including functionalities such as a follow-up, an universal compatibility, a customer service 24/7, the way of unlocking your SIM card will be much easier because instructions will be sent detailing your confirmation code and related steps to unlock it.

Among other things, if you compare carefully reviews and global specifications before downloading an APP, your SIM card will be functional and activated with your new PIN code. Secure, fast and permanent, third party APP became therefore an essential tool for phone's users without any major complexity during the use.

Wrap up

To conclude, we can say locking itself without remembering password set may happen anytime. That's a common practice to reset the PIN code on phone for having an integral control and access on APPs. Considered as legal by official carriers, make sure you follow our tips reviewed above if you want to unlock it in a proper manner.

First, locate your IMEI number which is your ID phone with 15 numbers

Secondly, contact your official carrier by providing your IMEI number

Thirdly, insert your new PUK code given by your official carrier

Fourthly, if none of those steps works, download one the best third party APPs to unlock it.

You may also want to read:
How to solve the problem that the mobile phone SIM card cannot be read?
See the unseen: How to reveal your IMEI number EASILY
How to unlock an Android phone if you forgot the password
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Home > Resources > Unlock Android Phone SIM Card without Code
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As we know, we need to buy a SIM card from mobile carrier in order to make phone calls or send text messages. The fact is that each mobile carrier employs different technology for its wireless service. Thus, some of the carries lock the phone to protect the phone from being used with other service providers, which means even you inserted a new SIM card to the phone, it will not work at all. This will be a very bad thing if you travel to another country. So in such a case, unlocking SIM card is an urgent thing for you.

Typically, there are two ways to unlock Android SIM card for now. One is asking the service operator. Well, this is the best way to do that and it is not a joke. However, not all of them are willing to help you on this matter. And they are a lot of requirements listed on their website and you are only qualified to use SIM unlock service once all the conditions are fulfilled. Anther way is using Android SIM Unlock software. The two methods will be demonstrated clearly in the follow parts.

Part 1: How to Unlock Android SIM Card for Free


If your phone is locked, you can get in touch with the operator who locked the phone. This is the first choice we should consider. In order to unlock the SIM card of your Android phone, you must first obtain IMEI number, which is the unique identifier to your phone. You can find this code by typing *#06# on dial pad. Alternatively go to Settings ->About Phone ->Status ->IMEI. Then give this IMEI code to the operator. If they found you eligible to the service, then you will receive a PIN code soon. Then you can use the code to unlock the phone once a new SIM card being inserted.

This method applies to the following but not limited to those mobile service providers: T-Mobile, Verizon, AT&T, Sprint, Vodafone, EE, Virigin Mobile, O2, Orange, etc...

However, sometimes carrier does not want to give you the unlock code for certain reasons. If you found out your Android phone is locked with a particular operator, and they are not helping you with that. The first thing you should NOT do is go to Google Play and try to unlock the SIM with some apps. These services have a very poor reputation and most likely frauds.

Part 2: Unlock Android SIM Card with Reputable Unlocking Software

You need to look for a reliable service or software that makes this operation in safe place. It is very difficult for you to choose the best because you can't tell which one is good or bad. To make your search easier, we recommend a better solution to unlock Android SIM card: Android SIM Unlocker . It is a legal and safe method to unlock Android SIM card. What is more, SIM unlocking is only a feature of the program, you can find several other useful tools such as data backup and restore. If you have deleted important files unintentionally on the phone, the program will be a great help to recover the lost data. To unlock Android SIM card, please just follow the steps below.

Step 1 Download and Install Android SIM Unlocker

Download Android SIM Unlocker by clicking the above button and install it on your computer. Launch the program and you will find the option 'Android SIM Unlock' in 'More Tools', which is displayed on the left sidebar.

Note: Please don't disconnect your phone from the computer during the whole process.

Step 2 Connect Android to Computer

Turn on USB Debugging mode on the phone and connect the phone to computer with USB cable. The phone will detected automatically by the program, just click 'Next' and follow the instruction on the screen.

Step 3 Enter into Service Mode on Android

You will see on the screen that you need to get the phone into 'Service Mode'. Now, open the dialpad and enter one of the codes: *#0808# or ##3424# or #9090#. One of them should work your phone. After inputting this code, you will automatically enter the 'Service Mode'.

Cracked Sim Card

Now on the 'Service Mode', you have to select DM + MODEM + ADB or UART[*] or CDMA MODEM from the menu.

Step 4 Start Unlocking Android SIM Card

When you have selected the options properly, just click on 'Unlock'. Then the SIM card unlocking service will be initiated and it will be done in a few minutes.

Step 5 Restore Android Phone to Normal State

Once the phone was unlocked successfully, click 'Restore Mode' to get back the phone to normal mode. Dial: *#0808# or ##3424# or #9090# on the phone and select MTP + ADB or USB[*] or PDA from the menu. Then just click 'Next' on the program, your Android device will go back to its normal mode. For now, you can insert new SIM card without any limitation.

Part 3: How to Unlock SIM Card for Rooted Android Phone

For new Android devices powered by Android 5.0 and later, you should root the phone first. Then connect the phone to computer and launch Android Data Recovery on the computer. Now click 'Unlock', the phone will be unlocked in a few minutes. The whole unlocking task is done in background and you don't need to type anything on the phone, which is much easier than the above method.

In the end, Unlock Android SIM Card is not a simple task but with Android SIM Unlock, it's not complicate either. However, we request you to carefully consider the pros and cons of this SIM unlock process. And don't give your phone to anyone who claims to help you unlock the phone. According to online community's feedback, there are a lot of scams in this kind. Please be careful.

One more tip: what is to do if your Windows computer locked by hackers? You can easily unlock it with the assistance of Androidphonesoft Windows Password Recovery tool.

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