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Unlock your Blackview BV5800


 Specification Blackview BV5800 
 Hard reset Blackview BV5800 
 Root Blackview BV5800 
 Firmware Blackview BV5800 
 Developer Mode Blackview BV5800 
 Bypass Lock Screen Blackview BV5800 
 Blackview BV5800 Factory Reset 
 Secret codes Blackview BV5800 
 Screenshot Blackview BV5800 

Blackview BV5800


OS: Android 8.1 Oreo

CPU: ARM Cortex-A53, 1500 MHz, Cores: 4
RAM: 2 GB, 667 MHz
Display: 5.5 inches
Camera: 8.04 MP (megapixels)
Battery: 5580 mAh, Li-Polymer


1. Use the Tenorshare 4uKey for Android app.
2. Make a hard reset (factory reset).
3. How to use a low battery to unlock a phone locked with a graphic key.
4. Delete 'gesture.key' and 'password.key' using Aroma File Manager.
5. Restore access to your smartphone using your Google Account.

1. Use the Tenorshare 4uKey for Android app.
  • Connect your phone to PC with USB cable and launch Tenorshare 4uKey for Android.
  • A menu will appear on the screen, press Remove.
  • After verifying the data, the removal of the smartphone screen lock will begin. The program will warn you about deleting all data on the phone, to continue working, click OK.
  • Wait until the operation is completed, and then put your smartphone into recovery mode according to the prompts on the computer screen.
  • Click the Next button, then follow the steps recommended by the program to restore the device to factory settings and reboot it. After rebooting the smartphone, the screen lock will be disabled.


2. Make a hard reset (factory reset)
  • To get started, turn off your smartphone.Simultaneously press and hold for about 10-15 seconds one of the button combinations:
    Volume down button + Power button;
    Volume up button + Power button;
    Volume down button + Power button + Home button;
    Volume down button + Volume up button + Power button.

  • Using the volume up/down buttons to navigate through the menu, select Recovery and press the power button.
  • Using the volume buttons to navigate through the menu, select Wipe data/factory reset. and press the power button
  • Confirm the reset and reboot your phone


3. How to use a low battery to unlock a phone locked with a graphic key.
  • You need to discharge the battery. To speed up the process, make sure that the screen is constantly lit.
  • When the battery has a few percent left, the phone will report this and open a menu with power settings, that is, it will unlock the phone.
  • You need to open the security settings and disable the lock.


4. Delete 'gesture.key' and 'password.key' using Aroma File Manager.
  • You need to turn off the phone and prepare a memory card.
  • Copy the Aroma File Manager program to the phone's memory card. Insert the memory card back into the phone.
  • Put your smartphone into recovery mode using the button combinations that are suitable for your particular model.
  • In recovery mode, follow the path Install zip -> Install zip from sdcard -> Choose zip from sdcard, go to the archive folder with this program and select it.
  • After starting the program, you will need to go to the folder /data/system and delete the files 'gesture.key' and 'password.key' (for Android 4.4 or lower) or 'getekeeper.password.key' and 'getekeeper.pattern.key' (for Android 5 or higher)
  • Reboot your smartphone.


5. Restore access to your smartphone using your Google Account.
  • When you try to unlock the phone several times, Forgot password? will appear on the screen. Click on it.
  • Choose the option - recovery with a Google account. You will need to enter your Google Account username and password.
  • Remove the screen lock from the settings.



Thomas Nilan
Smartphone Expert
Thomas Nilan is a mobile phone expert with in-depth knowledge of the Android and iOS operating systems, who understands the settings of various hidden features that allow you to expand the capabilities of your smartphone, as well as get information about what is going on inside the phone for future repairs. He is an authority in his field, which has allowed him to become a ghostwriter for several technology publications, and he enjoys writing small mobile applications for testing smartphones.



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