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Unlock Samsung Grand Quattro (GT-I8552)

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How to unlock your phone Samsung?

Phones from this manufacturer is also equipped with a function of blocking access via a special security code that you can easily forget ... If you came is the case (or someone else has locked your phone, anything can happen) and you do not know how to unlock your phone, set itself on a computer program called Samsung @ home 9.41. With its help you can easily cope with this problem. Functionality of this tool is simple enough, and you can effortlessly deal with its settings.

How to unlock Samsung Grand Quattro (GT-I8552)?

1. Unlock Samsung Grand Quattro (GT-I8552), locked by the operator.

2. Unlock Samsung Grand Quattro (GT-I8552), 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.
The operator blocks the phone by IMEI (a number that is unique for each device). To unlock your phone, you may need to use the services of sites that for little money will give you an unlock code to change the operator or network.


Unlock your phone, depending on the manufacturer.
On some phones, you can lock the screen using a password that you set yourself. To unlock your phone with this password, if you've forgotten it, you need to reset your phone to factory settings.



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. The PUK code can be found in the documents for the SIM card, if they are lost, then you can either call the mobile operator, or contact the nearest customer service center, taking the SIM card and phone with you. You will be prompted with the PUK code.

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 your actions and understand that you can simply break the phone and you cannot restore it. Therefore, if you do not know how to unlock your phone memory, it is best to seek professional help.


Unlock java games
To play the games that come pre-installed on your phone, sometimes you need to buy a special code to unlock all their functions, without having to reinstall them.
To buy the game you need to follow the instructions after choosing to buy the game, 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, you need to reset your phone to factory settings by doing a hard reset operation. You will have to re-configure your phone and install your favorite applications.
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 Power and Volume Up buttons together for a few seconds.
-As a result, the phone will boot into «Recovery mode».
-Use the volume buttons to navigate the menu, and use the Power button to select.
-Select «Wipe data / factory reset» from the menu.
-Now from the Recovery mode menu select «Reboot system now».
-Your smartphone will reboot and you will have it as you purchased it.
The third way. Unlock your smartphone using the smartphone manufacturer's unlock tool. For example, Samsung has developed its own «Find My Mobile» service to track and manage mobile phone access.
The fourth way. Remove your password using your Google account if you can connect to it on your computer. Your Google account on your computer has a remote reset and data deletion function on your phone, which will erase all data, including the lock password. Find My Device and Location must be active on your phone. A Google account and 'Play Market' must be configured on the smartphone.

Summary: Screen Type: TFT Capacitive Touchscreen; Screen Size: 4.65 inches; Screen Resolution: 480 x 800; Processor Speed: 1.2GHz; Internal Memory: 8GB; Extendable Memory: microSD, up to 32GB; Sensor Resolution: 5MP, 2592 x 1944 pixels; Front facing camera: 0.3MP; Operating System: Android; Version: 4.1; FM Radio: yes; Bluetooth: yes; Dual Sim Support: yes; Messaging: SMS, MMS, E-mail; GPS: Yes, with A-GPS support; USB Connector: yes; 2G: 850/900/1800/1900MHz; 3G: 900/2100MHz; Wi-Fi: 802.11b/g/n 2.4GHz; ...

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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 Samsung Grand Quattro (GT-I8552)

Ankit	April 16, 2017
How to unlock password

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.

subash	July 22, 2018
My fast school name?

ALI MUHAMMAD	September 08, 2018
MY PHONE SAMSUNG 18552 PIN CODE LGGYA HAI KESE KHULEGA SIR

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