Smartphones > BLU > BLU S91

Unlock your BLU S91

Specification BLU S91

Root BLU S91

Firmware BLU S91

Developer Mode BLU S91

Bypass Lock Screen BLU S91

BLU S91 Factory Reset

Bypass FRP BLU S91

Secret codes BLU S91

Screenshot BLU S91

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.
• Press the Remove button on the PC screen
• Smartphone screen lock removal will start.
• Wait until the end of the operation, and put your smartphone into recovery mode according to the instructions on the computer screen.
• Click the Next button and follow the instructions on the screen. After rebooting 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 to navigate through the menu, select Recovery and press the power button
• Using the volume up/down buttons to navigate through the menu, select Wipe data/factory reset. and press the power button.
• Confirm the reset operation and reboot your smartphone

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

• You need to wait until the battery of the phone is discharged.
• When a few percent of the charge remains, the phone will report this and open a menu with power settings, that is, the lock will be removed.
• You need to open the menu with security settings and turn off the phone lock.

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

• Turn off your smartphone and remove the memory card from it.
• Download Aroma File Manager via computer 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, find the item Install zip. Then go to 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 to regain access by entering your Google Account login password.
• Remove the screen lock in 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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