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Unlock Aligator S4020 Duo

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How to unlock Aligator S4020 Duo?

1. Unlock Aligator S4020 Duo, locked by the operator.

2. Unlock Aligator S4020 Duo, depending on the manufacturer.

3. Conduct unlock SIM card.

4. Restore the phone capacity, which has been locked memory.

5. Unlock java games

6. Remove the graphic lock, password from the smartphone



How to unlock the phone, locked the operator?
This type of blocking is used by mobile operators to make it impossible to use a phone on another operator's network. If you insert a SIM of any other operator, then when you turn on the phone will prompt you to enter a password or unlock code.
To unlock a phone locked by an operator, you need to visit sites that will provide you with an unlock code for money to change the operator.


Unlock your phone, depending on the manufacturer.
Many phones support the function of locking the phone with a password that the user sets himself. But the user can forget this code. To unlock your phone, you need to do a factory reset on your phone. Phone unlocking is different for different manufacturers.



Unlocking phone SIM card
A small plastic card with a chip in the middle - it's indispensable device without which the mobile phone is simply useless as such. It is, of course, on the SIM card. The chip, which it applies, although the small size, but allows you to keep a certain amount of information, which is often confidential. For the safety of the data is also used to protect the technology with the help of the so-called PIN-code that is requested to be turned off. If you unsuccessfully enter the PIN three times, the mobile device will prompt you for a different code, the so-called PUK-code is. It usually consists of eight digits and is provided to you together with the SIM card. If you can not use the phone because of the ignorance of the PIN-code, just use the PUK-code. But if the documents on the SIM card are lost, then the first thing to do is to call the support number of your mobile operator. There you will be prompted with the PUK code. If this cannot be done on a call, contact your nearest customer service center, taking with you the SIM card and the phone in which it was used.

Unlock your phone memory
Some phone models allow you to separately deny access to various files located in the phone memory or on the memory card. If you have forgotten the password to access the memory, you need to use additional software. To do this, you need a cable to connect your phone to your computer. One of the programs with which you can unlock is JetFlash Recovery Tool. You can download it from the official website of the developers.



You must be aware of the negative consequences of your actions and understand that you can simply break your phone. Therefore, if you do not know how to unlock your phone, you do not need to perform any actions with it, it is best to seek professional help.


Unlock java games
For games that are preinstalled on your device and are only trial versions, you usually need to purchase a code that unlocks all game functions without having to install or reinstall anything.
After choosing to purchase the game, follow the instructions on the screen. You will need an internet connection and the ability to pay by credit card.


How to remove the graphic lock, password from the smartphone?
If you locked your Android smartphone with a graphic template and forgot it, then you shouldn't be upset. You have at least several ways to unlock your smartphone.
The first way. Enter the pattern until the system prompts you to enter the login and password for the Google account with which the smartphone was activated. If you forgot your login, connect your smartphone to your computer and run the proprietary utility on it. For example, for Samsung it is Kies, for HTC it is HTC Sync. By clicking on the 'About device' menu item, you will find your username and can recover your password using standard password recovery tools from your Google account.
The second way. If you do not know the login and password for the Google account with which the smartphone was activated, you will have to make a hard reset.
For android phones, the hard reset procedure is almost the same, there are only small differences, a detailed description for each specific model you can find on our website. Here we will tell the general list of actions.
-Turn off your smartphone.
-Press the buttons Volume up and Power together for a while.
-As a result, the smartphone will boot in «Recovery mode» (engineering recovery menu).
-Use the volume buttons to navigate through the menus and press the Power button to make a selection.
-Then select «Wipe data / factory reset» from the menu.
-Select «Reboot system now» with the volume buttons and press the Power button.
-After reboot, you will receive the phone as from the store.
The third way. Unlock your smartphone using the service provided by the smartphone manufacturer. For example, Samsung offers its own «Find My Mobile» service to track and manage mobile phone access.
The fourth way. You can log into your Google account on your computer and delete your password there. Your Google account on your computer has a function to delete data on your phone and remotely reset the settings, which will erase all data, including the lock password. Features like Find My Device and Location must be enabled on your smartphone. Naturally, a Google account and 'Play Market' must be configured on the smartphone.

Summary: OS: Android 4.2 Ice Cream Sandwich; Processor: MediaTek MT6572; Processor clock: 1.20 GHz; Number of cores: 2; GPU: ARM Mali-400 MP1 @500 MHz; RAM: 256 MB; Internal memory: 512 MB; Memory cards: yes; microSD, microSDHC, microSDHC (up to 64 GB); Display: Color / TFT; 64k colors; 480 x 800 px (4.00") 233 ppi; 56.9% screen-to-body ratio; Display protection: yes; Type: Standard; Photo matrix: 2 Mpx; Resolution: 1600x1200 px; Flash: yes LED; Digital zoom: yes; Video formats: H.263, H.264, MPEG4; Additional: AF; Type: Portrait; Photo matrix: 0.3 Mpx; Flash: yes; Digital zoom: yes; Additional: FF; A-GPS: yes; GPS module: yes; Bluetooth: yes; EDGE: yes; GPRS: yes; IrDA: yes; NFC: yes; USB: yes; WAP ...

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Tarik Tonkov Mobile technology specialist

Tarik Tonkov is a computer scientist and programmer turned tech journalist with a keen interest in the world of smartphones and tablets. He previously wrote for Android Life and was also a ghostwriter for several technology and automotive publications. He appreciates the reliability and beauty of smartphones, the symbiosis of characteristics and usability. In his free time, Tarik likes to travel by car and polish his programming skills to create small useful programs.

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Comments, Questions and Answers about Aligator S4020 Duo

Android guru	August 21, 2017
In Android there are several settings that may not allow you to remove the screen lock. In addition to the settings, the installed applications can interfere with unblocking. 1. Remove the VPN, 2. Disable administrator rights, 3. Remove the third-party security certificates, 4. Try to disable the lock in safe mode. Do not allow to remove the lock can be downloaded application, which downloaded from the Play Store. To find out if there is such an application in the devices memory, load it into safe mode. In this mode, all downloaded applications are disabled, only those installed at the factory are working. If the lock is removed, then it means that some downloaded application is guilty.

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