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Unlock BLU J4

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Backup | Flash Firmware | Hard Reset | Screenshot

How to unlock BLU J4?

1. Unlock BLU J4, locked by the operator.

2. Unlock BLU J4, 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?
If the Phone is locked by an operator, then it cannot be used with a SIM card of another operator. If you want to use a phone with a SIM card from another operator, you will need to enter the unlock code.
The operator blocks the phone by a unique IMEI number, in order to unlock the phone, you need to contact the operator providing you services or buy an unlock code for money on one of the specialized sites.


Unlock your phone, depending on the manufacturer.
On some phones, you can lock the screen using a password that you set yourself. But what if you forgot this password? To unlock your phone, you need to do a factory reset on your phone.



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 the first thing to do is call the mobile operator. Or contact your nearest customer service center with your SIM card and phone. There you will be prompted with the PUK code.

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



The main thing is that you are aware of all your actions and perfectly understand what you are doing. Otherwise, you can simply turn the phone into a brick. Therefore, if you do not know how to unlock your phone or perform any other actions with it, it is best to seek professional help.


Unlock java games
To fully play the games that are preinstalled on your phone, you need to buy a special code to unlock all their functions, without having to reinstall them.
In order to buy the game, you will need an Internet connection and the ability to pay by credit card, and then follow the instructions after choosing to buy the game.


How to remove the graphic lock, password from the smartphone?
If you have locked your smartphone and forgot the pattern, then you should not be upset. You have several ways to unlock your smartphone.
The first way. Enter the pattern until the system prompts you to enter the login and password from the Google account with which the smartphone was activated.
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. All phone settings will be reset, photos and media stored in the phone will be deleted.
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 with the Power button.
-Press the buttons Volume up and Power together for a short time.
-The phone will boot into «Recovery mode».
-Use the volume buttons to navigate the menu and select the Power button.
-Select «Wipe data / factory reset» from the menu.
-Then select «Reboot system now».
-The phone will be like new after reboot.
The third way. Unlock your smartphone using the unlock 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 remove your password through your Google account by connecting to it on your computer. Your Google account on your computer has a function to delete data on your phone, which will erase all data, including the lock password. Find My Device and Location must be active on your phone. On your smartphone, you must have a Google account and 'Play Market' configured.


Summary: OS: Android 8.1 Oreo; CPU: Quad-core 1.3 GHz Cortex-A7; GPU: Mali-400; Type: IPS LCD capacitive touchscreen, 16M colors; Screen Size: 5.5 inches, 78.1 cm 2 (~71.5% screen-to-body ratio); Resolution: 720 x 1440 pixels, 18:9 ratio (~293 ppi density); Card slot: microSDXC; Internal: 32GB 1GB RAM; Single camera: 8 MP, AF; Features: LED flash; Video: 720p@30fps; Single camera: 8 MP; Video: 720p@30fps; Loudspeaker: Yes; 3.5mm jack: Yes; Sensors: Accelerometer; Battery: Removable Li-Po 2200 mAh battery; Dimensions: 151 x 72.3 x 10 mm (5.94 x 2.85 x 0.39 in); Weight: 158 g (5.57 oz); SIM: Dual SIM (Nano-SIM, dual stand-by); ...

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