6 Ways to Unlock Forgotten Password/Pattern/Pin Screen Lock on LG G4/3/2

“How do I unlock my LG phone if I forgot password/pattern/digital pin? I have forgotten my lock screen password and cannot get into my phone. But I don’t want to factory reset it. I want to keep all my data.”


Forgot password and can't unlock your LG lock screen? Don't worry, you have several different ways to solve this problem.


This article lists 6 effective ways to help you unlock LG phone when you forgot a password.

Part 1. Unlock LG Phone if You Forgot Password (Not Losing Any Data)

Part 2. Unlock Your LG Phone Password Screen via Android Device Manager

Part 3. Access Password-Protected LG by Google Login (Android 4.4 and below)

Part 4. Unlock LG Phone Forgot password by Install TWRP to SD Card

Part 5. Factory Reset to Remove LG Phone Screen Lock (Erase All Data)

Part 6. Using Android Debug Bridge Command to Unlock LG Phone

Part 1. Unlock LG Phone if You Forgot Password (Not Losing Any Data)

The FoneCope toolkit provides for you a powerful feature to unlock your LG phone. With this tool, you can easily bypass the password and enter your LG G 4/3/2. More importantly, all the data in your LG will not be lost.


download on Win


Follow the steps below to unlock your LG if you forgot the password.


Step 1. Download and install this software on your computer. After launching it, then select the Unlock feature.

toolkit home


Step 2. Connect the LG phone to your computer. Select "Start".

connect locked lg phone to pc


Step 3. In the following interface, select the model information that matches your phone from the drop-down list.

confirm locked lg phone device name and model


Step 4. According to the instructions manually launch download mode on your phone.

Disconnect the LG phone from the computer first, then turn off the power.

Press the "Power Up" button and plug in the USB cable at the same time.

Keep press the “Power Up” button until the “Download Mode” shows.

put lg phone into download mode


Step 5. When your LG is in download mode, click “Remove” to start deleting the lock screen. Then the LG phone will reboot, and you can enter your phone without authentication.

remove lg phone screen lock complete


download on Win



Part 2. Unlock Your LG Phone Password Screen via Android Device Manager

If you have a Google account associated with your LG phone, using Android Device Manager is another effective way to unlock the LG forgot password. Follow the steps below to unlock your LG.


Step 1. Go to Android device manager and sign in with your Google account associated with LG.

sign in google account android device manager


Step 2. Select your LG phone and on the options click "Lock" feature.

click lock feature


Step 3. In the pop-up interface, set a new password for your LG (Plus: You can't use Google passwords) and then confirm by clicking "Lock".

set a new password lg

With this new password, you can unlock your LG. Try it now.



Part 3. Access Password-Protected LG by Google Login (Android 4.4 and below)

If your LG is running an old Android system (Android 4.4 and lower versions), then this method is perfect for you. When you enter a certain number of incorrect passwords, you will be asked to use a Google login to unlock LG. Unfortunately, you can't see this feature on recent Android systems. Now you can follow the detailed steps to bypass forgotten LG screen lock.


Step 1. Feel free to enter the wrong password at least 5 times. After that, you will see the option "make an emergency" and "Forget pattern" at the bottom of the LG screen. Tap "Forget pattern" to proceed to the next step.

android 4.4 forget pattern


Step 2. You can see the “Account Unlock” on the LG screen, then enter your username/mailbox and password in the input box to log in to your Google account.

account unlock lg screen

Note: When you use your Google account to unlock your LG, your account needs to be associated with your LG phone beforehand.



Part 4. Unlock LG Phone Forgot password by Install TWRP to SD Card

If you operate the computer well, you can unlock your LG by launching a custom recovery program on the LG - Team Win Recovery Project.


Things you should know before you start:

1. Your SD card should be removable.

2. Your computer needs to have an SD card port, or if you have an OTG cable instead, you can use a flash drive.

When you are ready, follow the guide below.


Step 1. Download the “Pattern Password Disable” application from the web page and save the ZIP file on your local computer.

Step 2. Insert the SD card to connect to your computer. After identifying, drag the ZIP file to the SD card file directory.

Step 3. Insert the SD card into the device and turn it off.

Step 4. After booting up, follow the instructions to start recovery mode: long press Power, Home, and Volume Up button simultaneously until TWRP recovery mode is activated. In this mode, select “Install” in the menu and select the Pattern Password Disable to install.

pattern password disable

Step 5. After installation, we can restart the LG phone. At this time, we can enter LG without a password.



Part 5. Factory Reset to Remove LG Phone Screen Lock (Erase All Data)

If your LG does not store important files, you can try to reset your LG forgotten password to clear the lock screen settings on your phone. However, the result is all data from your LG will be deleted after reset. After knowing what factory reset your phone will bring, you need to follow the steps below to reset LG phone.


Step 1. In order to successfully perform the factory reset, you need to turn off your LG first. Then press the Power and Volume Down button simultaneously until the LG logo appears. Then release the button for a few seconds and repeat the operation until the recovery mode menu appears.


Step 2. Using the Volume up and down buttons you can select the options in the menu. Then select "Wipe Data/Factory Reset". Finally, you need to agree to reset the device.

factory reset lg phone to unlock screen


Step 3. The factory reset takes a few minutes. After that, you will return to the "Recovery Mode" menu and you need to select "reboot system now" with the button mentioned above. After resetting LG, you don't need any password when you enter the phone again.

reboot system now after resetting



Part 6. Using Android Debug Bridge Command to Unlock LG Phone

If the methods mentioned above doesn’t work, you can try to chat or email LG Support to get help. Or there is still a method left to deal with the problem of forgetting the LG password, but it is a little complicated. In this method, your LG phone should have started the USB debugging before forgetting the password. Detailed steps are as follows.


Step 1. You can click and download the Android SDK and install ADB on your computer.


Step 2. Connect the LG to your computer and open the command prompt. If asked, please agree to enable USB debugging on the device.


Step 3. Enter the following code at the command prompt and restart your LG when finished.

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

use adb to unlock lg phone 1


Step 4. If the above code does not work, you can enter the code "adb shell rm /data/system/gesture.key" as shown below.

use adb to unlock lg phone 2


Step 5. Restart your LG phone. If you are still asked to enter a password to unlock the LG, enter a random one to unlock it.



The Bottom Line

Above are 6 possible ways to unlock your LG phone when you forgot password/pattern/digi pin. What you need to do is choose the method that suits you. The features of these solutions have been clearly listed in the above part.


If you have any thoughts about the article, feel free to leave your comment.


Last Updated: December 28, 2018

Author: Daniel Lee  /     

Editor of FoneCope, does great in fixing Android and Apple device related problems, writing technical tips step by step.


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