Resetting an Android password via a computer: a complete guide with a guaranteed result

Forgotten password on a Androiddevice is a situation that almost every user has encountered. A pattern, PIN code or fingerprint may suddenly stop working after a system update, firmware failure or simple forgetfulness. If standard recovery methods via Google Account do not help, a computer comes to the rescue. With its help, you can bypass the blocking even without losing data - but only with the right approach.

In this article we will examine 5 working methods password reset via PC: from official tools (Find My Device) to advanced technical methods using ADB i Fastboot. Each option is illustrated with step-by-step guide, risk warnings, and data preservation tips. Important: Some methods require preliminary activation of USB debugging - if you have not enabled it in advance, some methods will not be available.

Before you start, check:

• 🔌 Do you have a USB cable (preferably original)
• 💻 Computer controlled Windows, macOS or Linux
• 🔄 How critical is the data on the device (photos, messages, applications)
• 📱 Model and version Android (you can find out through mode Fastboot)

1. Preparing the computer: drivers and tools

Before resetting the password, you need to configure the PC to work with the Androiddevice. Without the correct drivers and utilities, the computer simply will not see the smartphone or tablet.

For Windows required:

• 🖥️ Install ADB drivers (download from the site Google or via SDK Platform Tools)
• 🔧 Enable mode USB debugging (if the device is already unlocked at least once)
• 📦 Download package Platform Tools (contains adb i fastboot)

On macOS/Linux It is enough to install Platform Tools via the terminal and configure access rights.

Check the device connection with the command:

adb devices

If the serial number appears in the response, the drivers are installed correctly. If not, reinstall them or try a different USB port.

2. Method 1: Unlocking via Google Find My Device (official method)

The safest and legal way is to use service Find My Device from Google. It works if:

• 📱 The device is linked to an account Google
• 📶 Has access to the Internet (via a mobile network or Wi-Fi)
• 🔄 The function Find a device is activated in the settings

Instructions:

1. Go to the website Google Find My Device (log in with the same account as on your phone).
2. Select a blocked device from the list.
3. Tap Lock device and enter a new temporary password.
4. Use this password to unlock your phone.

⚠️ Attention: If two-factor authenticationis enabled on the device, confirmation via SMS or backup code may be required. Without access to them, unlocking via Find My Device is impossible.

3. Method 2: Password reset via ADB (USB debugging required)

The method is suitable for devices where USB debugging was previously enabled. If you have never connected your phone to a PC in developer mode, this method will not work.

Step-by-step guide:

1. Connect your phone to the PC via USB.
2. Open the command line (cmd) in the folder with Platform Tools.
3. Enter the commands one by one:

   adb shell
   su
   rm /data/system/gesture.key
   rm /data/system/password.key
   rm /data/system/locksettings.db
   rm /data/system/locksettings.db-wal
   rm /data/system/locksettings.db-shm
   reboot

4. After rebooting, the device will be unlocked.

If the command su does not work, then the device does not have one. root access. In this case, try the alternative:

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
reboot

⚠️ Attention: On devices with Android 10+ and encryption FBE (File-Based Encryption) this method may lead to data loss after reboot. Before use, make a backup copy through adb backup.

4. Method 3: Removing the password via Fastboot (for devices with an unlocked bootloader)

If your device has unlocked bootloader (bootloader), you can reset the password via the Fastbootmode. This method is suitable for most devices Xiaomi, OnePlus, Google Pixel and some models Samsung.

Instructions:

1. Turn off the phone and hold down the key combination to enter Fastboot (usually Power + Volume Down).
2. Connect the device to the PC and check its visibility:

   fastboot devices

3. Enter the command to reset:

   fastboot erase userdata

   or (for some devices)

   fastboot format userdata

4. Reboot the device:

   fastboot reboot

After this procedure, all data on the device will be removed, but the screen lock will be reset. If the bootloader is locked, you will need to unlock it first (on some devices this will reset the data).

⚠️ Attention: Unlocking the bootloader on devices Samsung with a processor Snapdragon can lead to the activation of protection Knox, which will deprive you of the warranty and access to some functions (for example, Samsung Pay).

5. Method 4: Using TWRP Recovery (for flashed devices)

If your device has TWRP custom recoveryinstalled, resetting the password will take only a few minutes. This method allows you to bypass the lock without losing data if you act carefully.

How it works:

1. Boot into mode TWRP (usually Power + Volume Up).
2. Go to section Advanced → File Manager.
3. Delete the following files:
   • /data/system/gesture.key
   • /data/system/password.key
   • /data/system/locksettings.db
   • /data/system/locksettings.db-wal
   • /data/system/locksettings.db-shm

If after a reboot you are prompted to enter the old password, it means that the device is enabled encryption. In this case, only a full reset via Wipe → Format Data will help (all content will be deleted).

6. Method 5: Flashing the stock firmware (last resort method)

If none of the previous methods worked, you can still reflash the device using the official one firmware. This is guaranteed to delete the password, but all data, applications and settings will also be erased.

For firmware you will need:

• 📥 Official firmware for your model (download from the manufacturer's website or XDA Developers)
• 🖥️ Utility for firmware:
  • Samsung — Odin
  • Xiaomi — Mi Flash Tool
  • Google Pixel, OnePlus — Fastboot

Example of firmware via Fastboot:

fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot reboot

For Samsung via Odin:

1. Run Odin in mode administrator.
2. Connect the phone in mode Download Mode (Power + Volume Down + Bixby).
3. Add the firmware files to the appropriate fields (BL, AP, CP, CSC).
4. Click Start and wait for completion.

⚠️ Attention: Firmware for unofficial or modified firmware can lead to brick (breakage) of the device. Use only official firmware from trusted sources.

7. What to do if nothing helps?

If all of the above methods do not work, there are two options left:

1. Contact the service center. Official centers Samsung, Xiaomi and other brands can unlock the device using purchase documents (sometimes for a fee).
2. Use hardware methods. Some workshops offer firmware flashing services (via test points on the board), but this is risky and expensive. ISP-firmware (via test points on the board), but this is risky and expensive.

Before visiting the service:

• 📄 Take with you a receipt or box from the device (proof of ownership).
• 🔐 Check whether the data will be saved after unlocking (usually not).
• 💰 Find out the cost of the service (can reach 30-50% of the price of a new phone).

If the device is not valuable and the data is not critical, sometimes it is cheaper to buy a new smartphone than to pay to unlock the old one.

FAQ: Frequently asked questions about password reset Android

adb shell am start -n com.google.android.gsf.login/
adb shell am start -n com.google.android.gsf.login.LoginActivity