Smartphones > Blackview > Blackview DM550

Unlock your Blackview DM550

Specification Blackview DM550

Root Blackview DM550

Firmware Blackview DM550

Developer Mode Blackview DM550

Bypass Lock Screen Blackview DM550

Blackview DM550 Factory Reset

Secret codes Blackview DM550

Screenshot Blackview DM550

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 smartphone to your PC and launch the 4uKey for Android program.
• In the menu that opens, click Remove.
• 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 and follow the instructions on the screen. After starting the smartphone, the screen lock will be disabled.

2. Make a hard reset (factory reset)

• 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 buttons, select Recovery and press the power button.
• Select Wipe data/factory reset. by using the volume buttons to move through the menu and confirm the selection by pressing 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 charge left, the phone will notify you and open a menu with power settings, that is, the lock will be removed.
• You need to quickly open the menu item with security settings and disable the lock.

4. Delete 'gesture.key' and 'password.key' using Aroma File Manager.

• Turn off your smartphone and remove the memory card from it.
• Copy Aroma File Manager to your phone's memory card. Insert a memory card into your smartphone.
• Using the combination of volume and power buttons, put the smartphone into recovery mode.
• 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.
• You need to find the /data/system folder 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)
• Restart your smartphone. The block will be removed.

5. Restore access to your smartphone using your Google Account.

• After unsuccessful attempts to unlock the phone, Forgot password? will appear on the phone screen. Click on it.
• Choose the option - recovery with a Google account. You will need to enter your Google Account username and password.
• Delete in the lock screen settings.

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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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