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Unlock your vivo U3

Specification vivo U3

Hard reset vivo U3

Root vivo U3

Firmware vivo U3

Developer Mode vivo U3

Bypass Lock Screen vivo U3

vivo U3 Factory Reset

Bypass FRP vivo U3

Secret codes vivo U3

Screenshot vivo U3

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 and open Tenorshare 4uKey for Android.
• A menu will appear on the screen, press 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, 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)

• First, turn off your phone.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 confirm by pressing the power button.
• Confirm hard reset.

3. How to use a low battery to unlock a phone locked with a graphic key.

• You need to ensure that the phone battery is discharged. 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 quickly find the page with security settings in the menu and disable the lock.

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

• You need to turn off the phone and remove the memory card from it.
• 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 appropriate button combination for your model.
• In recovery mode, select 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 phone. The block will be removed.

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

• After several attempts to unlock the phone, Forgot password? will appear on the screen. Click on it.
• Choose to restore access with your Google Account. You will need to enter your Google Account username and password.
• Remove the screen lock from the 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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