What to do if you forgot the password from your old Android phone

The situation when access to your own device is limited due to a forgotten pattern or PIN code is one of the most common problems of gadget owners. This issue is especially acute for users old phoneswhere modern methods of biometric protection are absent, and memories of the combination of numbers have been erased from memory. There is no need to panic: the architecture of the Android operating system, especially in versions from 4.0 to 7.0, provides for several levels of access recovery.

In this guide, we will analyze in detail the action algorithms for various blocking scenarios. You'll learn how to use Google's built-in security features, recovery mode capabilities, and specialized PC utilities. It is important to understand that some methods may require complete data deletion, while others will allow you to keep your information intact.

Using a Google account to restore access

On older versions of Android (up to and including version 5.1 Lollipop), there was a standard function to reset the lock through a linked Google account. After five unsuccessful attempts to enter an incorrect pattern or PIN code, a button Forgot your pattern key? or Forgot your password?should appear on the lock screen. Clicking on this option takes the user to the authorization form.

You will need to enter the username and password for the Google account that was previously synchronized with this device. Internet connection at this moment is a prerequisite; If Wi-Fi is turned off, try swiping to open the notification shade and activate data transfer. The system will check the credentials and offer to install a new screen lock method or disable it completely.

Unfortunately, in newer firmware versions released after 2015, Google developers strengthened security measures and removed this feature from the interface. However, for devices of brands Samsung, LG and HTC that period, this method remains the most gentle, since it does not require deleting user files.

⚠️ Attention: If you do not remember the password for your Google account, restore it first on another device via a computer, otherwise the phone will not be unlocked is not possible this way.

Resetting settings via Recovery mode (Hard Reset)

If software methods do not work, the most effective solution is a forced reset to the factory state, the well-known like Hard Reset. This procedure completely clears the internal memory of the device, deleting all photos, contacts and applications, but is guaranteed to remove the screen lock. To enter recovery mode, you must use a combination of physical buttons.

The entry process varies depending on the manufacturer and model of your gadget. Most often, you need to turn off the phone and then hold down the volume up button (Volume Up) together with the power button (Power). On some models Sony or Moto you may need to hold down the Volume Down button. Hold the keys until a logo or menu with text in English appears.

Navigation in the menu Recovery Mode is carried out with the volume buttons (up/down), and the selection of an item is confirmed with the power button. You need to find the section Wipe data/factory reset. Confirm the action by selecting Yes -- delete all user data. After the process is completed, select the option Reboot system now to reboot.

It is worth considering that after a reset, protection may work on devices with Android 5.1 and higher. FRP (Factory Reset Protection). This is a mechanism that requires you to enter the password from your last synced Google account when you first set up your phone. Without this data, the device will remain locked even after a full reset.

Deleting a password file via ADB (for advanced users)

For those who previously activated mode USB debugging in the developer menu, there is a method for deleting the lock file without losing data. This method requires a computer with the ADB (Android Debug Bridge) driver installed and a phone connected via a USB cable. The method works mainly on older versions of Android without encrypting the data partition.

Connect the locked smartphone to the PC and open a command line or terminal in the folder with the ADB utility. Enter the command to check the connection: adb devices. If the device is displayed in the list with status device, then the connection is established. Next, you need to obtain superuser rights and delete the system file that stores the key.

adb shell
rm /data/system/gesture.key
rm /data/system/password.key
reboot

After executing the command reboot the phone will reboot. You can enter any pattern or password and the screen will unlock. However, this method has limitations: on modern devices with full disk encryption, the file system /data is not writable without first unlocking, which makes the method inoperative for phones released after 2016.