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How to hard reset BLU J4

  Mobiles >> BLU >> BLU J4
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Backup | Flash Firmware | Hard Reset | Screenshot


1. Turn off the phone using the POWER button.

2. Press the POWER and Volume UP button together for a few seconds.

3. When the Blu logo appears, release all the buttons.

4. When the Android robot logo appears, press the POWER and Volume UP buttons for a couple of seconds.

5. Go to wipe data / factory reset using the Volume Up(+)/Down(-) keys to go through the menu items and the POWER button to Confirm the selection.

6. Go to Yes and confirm using the POWER button.

7. Go to reboot system now and confirm using the POWER button.




Hard Reset - advantages and disadvantages BLU J4?

In simple words, Hard Reset means hard resetting the phone. As a result, the system automatically returns to the factory settings and the system is completely cleared. Contacts, correspondence, application, files, search queries, passwords - all of this is deleted from the device's memory.

Benefits of Hard Reset:
The ability to reset the phone to factory settings.
Removal of viruses that interfere with the normal functioning of the device.
Solving problems that arose after installing some applications and remained after they were removed from the phone.

Disadvantages of Hard Reset:
Permanently deletes all data on the device.
The need to have an up-to-date backup.
In rare cases, it is impossible to remove some viruses from Android, even after a hard reset.


What needs to be done before the Hard Reset operation.
So that after a hard reset the phone is not blocked by the FRP, make sure that you know the login / password to your google account.
You can sign out of your google account before resetting. In this case, after performing a factory reset, you do not need to enter the login password for your Google account and you can immediately use your device.
In case you have already done a factory reset and cannot remember the login and password for logging into your Google account, for most models there are instructions for bypassing protection (FRP).
Not all phone models can bypass the FRP protection, their owners will need to contact the official service center.

After performing a hard reset, your device will be completely wiped clean. Everything that was in the memory of your device will be deleted.

What can be done to avoid losing important information?
If important information (contacts, sms, photos, videos) remains in the memory of your device, then there are the following options to save it:

Synchronize your phone with Google contacts, Google drive.
Backup your contacts and information.
With the service programs for your phone, you can transfer important data to your PC.


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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