Ways to unlock Android phones with a graphical password

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The first method (the simplest)

Call a blocked phone. Answer the call and press the Home button. The call window should close and return to the Home screen. Then enter the settings and delete the graphic code.

The second method.

If your smartphone is locked, you can restore it without any problems with your Google account. Gmail will be linked to your account. Gmail is enough to reset your email login and password.

After entering the code incorrectly 5 times, the message "Try later" will appear on the screen. At the bottom of the screen is "Did you forget the graphic code?" you will be able to press the button. We press this button. Enter the login and password of Google Mail used on the device. Click the "Enter" button.

Now you have the opportunity to put a new graphic code. Enter a new code and remember the code you entered this time 

Continue by clicking the "Confirm" button in the lower right corner.

Ufourth method (all data will be deleted)

The most reliable method and works 100 percent.
To do this, you need to completely cancel the settings (full reset settings). This is called a Hard Reset.

We turn off the phone or tablet first. Then "Turn on»+»+ Volume up"(+"Home»When pressed at the same time. We will wait. The tablet or phone lights up in Recovery Mode. From the menu Wipe data / factory reset select the section. Then Yes-Delete all users we confirm that. Wait for the procedure to complete and turn the device off and on.

The fourth method (while retaining data, but for skilled users)

To do this, you will need a USB cable to connect your computer and the Android SDK software installed on it, the ADB program, your phone or tablet to your computer.

Connect the device to the computer, enter the "command line" from the computer. (In Windows XP, click Start -> cmd or Start -> Find Program File -> cmd). Then enter the following in sequence:

adb shell

cd /data/data/com.android.providers.settings/databases

sqlite3 settings.db

update system set value = 0 where name = 'lock_pattern_autolock';

update system set value = 0 where name = 'lockscreen.lockedoutpermanently';

.quit

Turn the phone or tablet off and on.

The fifth method (While preserving the data, however high for qualified users)

To do this, you will need a computer and the Android SDK software installed on it, an ADB program, a USB cable to connect your phone or tablet to the computer.

Connect the device to the computer, enter the "command line" from the computer. (In Windows XP, click Start -> cmd or Start -> Find Program File -> cmd). Then enter the following:

adb shell rm /data/system/gesture.key

Turn the phone or tablet off and on.

After you turn it off, a graphic code will appear on the screen again. Don’t worry - you can now unlock with any code.

Source: Programmer.uz