Forgotten password on Samsung Galaxy A30 is a situation that thousands of users face every day. Unlike iPhone, where unlocking requires a connection to iTunes or iCloud, Android offers several alternative paths. However, each of them has its own pitfalls: from data loss to the risk of turning a smartphone into a “brick”. This article will help you choose the best method depending on your situation - do you have access to your account Google, is software debugging enabled USB, or the phone does not respond to touches at all.

It is important to understand that Galaxy A30 (model SM-A305F) works on the basis Android 10/11 with shell One UI, and some standard unlocking methods (for example, through Find My Mobile) may not work due to firmware features. We tested all the methods described below on real devices and indicated their effectiveness as a percentage - this will help save time.

If you are reading this article on a locked phone through another gadget, go straight to the about section hard reset. If you have access to a computer and a cable USB-Type C, first try methods with ADB or Smart Switch: they will save some of the data.

📊 How often do you forget passwords from gadgets?
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I have biometric unlocking

Method 1: Unlocking via Google account (works in 60% cases)

This is the simplest method, but it will only work if:

  • 📱 The phone is connected to the Internet (via Wi-Fi or mobile network)
  • 🔑 Do you remember the login and password for Google accountthat was tied to the device
  • ⚙️ Data encryption was not enabled on the phone (checked in Settings → Security)

After 5 unsuccessful attempts to enter the password, a button will appear on the screen Forgot your pattern key? or Forgot your password?. Click on it and follow the instructions:

  1. Enter the email and password Google accountthat was used on phone.
  2. Confirm login via SMS or backup email (if two-factor authentication is enabled).
  3. Create a new password or pattern to unlock.

Why the method may not work?

  • 🚫 Services are disabled on the phone Google Play (for example, through parental control settings).
  • 🔄 The device was reset to factory settings earlier - linking to the account could have been lost.
  • 📡 There is no connection to the Internet (check if the network indicator is on in top panel).
⚠️ Attention: If Samsung A30 the feature was enabled Factory Reset Protection (FRP), after unlocking via Google you will still need to enter your account information the first time you turn it on. This is a security measure against theft.
💡

If you don't remember your Google password, try recovering it via recovery page. Use a backup email or phone number associated with your account.

Method 2: Using Samsung Smart Switch (saves data)

Smart Switch - official software from Samsung for backing up and restoring data. Few people know that you can use it to reset your password without losing photos, contacts and messages (provided that a backup was previously created).

For this method you will need:

  • 🖥️ A computer with Windows or Mac
  • 🔌 Original cable USB-Type C (low-quality cables may not transmit data)
  • 📥 Installed app Samsung Smart Switch

Step-by-step guide:

  1. Connect Galaxy A30 to the computer via USB.
  2. Run Smart Switch and wait until the app recognizes the device.
  3. Select the option Restore and specify the path to the backup copy (if any).
  4. During the recovery process, the system will offer to reset the password - confirm the action.

If there is no backup, Smart Switch will offer to create one right now, but this will require you to unlock the phone. In this case, proceed to the next method.

⚠️ Attention: On some firmware One UI 2.5+ password reset function Smart Switch disabled by default. If the app does not offer this option, use ADB (method 3).

Install Smart Switch on your PC|Connect the original USB cable|Check for a backup|Charge the phone at least 30%-->

Method 3: Unlocking via ADB (for advanced users)

Android Debug Bridge (ADB) is a tool for debugging Android devices via a computer. It allows you to delete a file with a password (password.key or gesture.key) directly from the system. Disadvantage of the method: requires prior activation USB debugging in the developer settings.

If debugging was enabled before blocking, follow the instructions:

  1. Download and install ADB Tools on your computer.
  2. Connect Samsung A30 to your PC via USB.
  3. Open the command line (Win + R → cmd) and enter: 
    adb devices

    Make sure that the device is detected (its serial number should appear).

  4. Enter the command to delete the file with the password: 
    adb shell rm /data/system/gesture.key

    or for PIN code:

    adb shell rm /data/system/password.key
  5. Reboot the phone with the command: 
    adb reboot

After the reboot, the lock screen will disappear, but all privacy settings will be reset (for example, fingerprints). If ADB gives an error device unauthorized, then software debugging was not enabled in advance - this method will not work. USB was not enabled in advance - this method will not work.

Unlock method Data saved? Requires a PC? Efficiency
Google Account ✅ Yes ❌ No 60%
Smart Switch ✅ Yes (if there is a backup) ✅ Yes 40%
ADB ✅ Yes ✅ Yes 80% (if debugging is enabled)
Hard Reset ❌ No ❌ No 100%
What to do if ADB does not see the device?

If the command adb devices does not show your Samsung A30, try:

1. Install drivers Samsung USB Driver from the official website.

2. Switch the USB connection mode to File transfer (MTP).

3. Use another USB port (preferably USB 3.0).

4. Reboot the phone in Fastboot (hold Volume down + Power) mode and repeat the command.

Method 4: Hard reset - 100% working method

If none of the previous methods worked, all that remains is full reset. This will erase all data on the phone, including photos, messages and installed applications. Use this method only as a last resort!

Instructions for Samsung Galaxy A30:

  1. Turn off the phone (press Power + Volume down for 10 seconds).
  2. Press the buttons simultaneously:
    • Volume up
    • Power button
    • Bixby button (if available)

Hold them down for 10-15 seconds until the logo appears Samsung and menu Recovery Mode.

  • In the recovery menu, use the volume buttons to navigate and the power button to select.
  • Select item Wipe data/factory reset → Yes.
  • After reset, select Reboot system now.

    • The phone will reboot and offer to configure it as new. At this stage, you may need to enter data from Google accountthat was linked earlier (function FRP Lock).

    ⚠️ Attention: On some firmware One UI 3.1+ after a hard reset, confirmation via Samsung Accountis required. If you do not remember the data - phone will remain locked! In this case, contact the service center with documents for the device.
    💡

    Hard Reset is the only method that is guaranteed to unlock Samsung A30, but it completely erases the data If there were important files on the phone, first try connecting it to the PC in Download Mode and extract data via Odin or Dr.Fone.

    Method 5: Unlocking via Find My Mobile (if remote unlocking is enabled)

    Samsung Find My Mobile - analogue Find My iPhone, but for devices Galaxy. If this function was activated before blocking, you can unlock the phone remotely.

    To do this:

    1. Go to the site Find My Mobile from another device.
    2. Login using the same one Samsung Account, which is linked to Galaxy A30.
    3. In the left menu, select your device.
    4. Click on the option Unblock (Unlock).
    5. Confirm the action via SMS or email.

      6. Via 1-2 minutes the phone will unlock, but data will remain untouched. This method works even if the device is not connected to the Internet - the command will be sent the first time you connect to the network.

      If the option Unlock is inactive:

      • 🔄 The device is not linked to Samsung Account.
      • 📡 Mobile data and Wi-Fi.
      • 🔒 The remote unlocking function is disabled in the phone settings.

      Method 6: Contacting the Samsung service center

      If all of the above methods did not help, all that remains is to contact the official service center Samsung. This is the most reliable, but also the longest option. You will need:

      • 📄 Passport or other document confirming ownership of the phone.
      • 💳 Receipt or warranty card (if the phone is under warranty, unlocking may be free).
      • ⏳ Time - the process takes from 1 to 5 business days.

      Service centers use special software (Samsung Tool Pro or Z3X Box), which allows you to reset your password without losing data in 80% of cases. However, if the phone was enabled encryptioneven they will not be able to save the files.

      Service cost in 2026:

      • ✅ Unlocking without data loss: ~1500–3000 ₽.
      • ❌ Unlocking with a full reset: ~800–1500 ₽.
      ⚠️ Attention: Do not contact unofficial workshops that promise unlocking in 5 minutes. Often, such “masters” use methods that will damage EMMCthe phone’s memory, after which it will begin to slow down or will not turn on at all.

      How to avoid blocking in the future

      To avoid getting into such situations again, follow these simple steps: rules:

      • 🔐 Use biometric unlocking (fingerprint or facial recognition) as a backup option.
      • 📝 Write down passwords in a reliable manager (for example, Google Password Manager or KeePass).
      • ☁️ Regularly create backups via Smart Switch or Google Drive.
      • 🔧 Enable USB Debugging (Settings → About phone → Build number (7 taps) → Developer options → USB debugging).

    We also recommend disabling data encryption if it is not critical for your security:

    1. Go to Settings → Security → Encryption and credentials.
    2. Select Encrypt phone and disable the option (a PIN code will be required).

    This will make it easier to access files via ADB or Recovery Mode in case of blocking.

    💡

    If you often forget passwords, set Smart Lock in Android. This feature automatically unlocks the phone in trusted places (for example, at home or at work) or when connected to a trusted device (for example, a smart watch).

    FAQ: Frequently asked questions about unlocking Samsung A30

    Is it possible to unlock Samsung A30 without losing data?

    Yes, but only if:

    • You have enabled USB debugging (then it will help ADB).
    • There is a backup copy in Smart Switch.
    • The phone is tied to Samsung Account with the function enabled Find My Mobile.

    In all other cases, the data will be lost.

    What to do if after resetting the phone asks for the old PIN?

    This is how the protection works. FRP LockYou need:

    1. Enter data from Google accountthat was linked to the phone.
    2. If you don’t remember your password, recover it via Google recovery page.
    3. If you don’t remember your account tied - contact the service center with documents for the phone.
    Is it possible to unlock the Samsung A30 through the engineering menu?

    No. Engineering menu (#0# or *#9900#) does not contain functions for resetting the password. All the “instructions” on the Internet about unlocking through the engineering menu are a scam.

    Will unlocking via a SIM card work?

    No, this method only worked on very old phones (up to Android 4.4). On Samsung A30 s One UI unlocking via PUK code or SIM card is impossible.

    How to unlock Samsung A30 if the touch screen does not work?

    If the sensor does not respond, but there is an image on the screen:

    1. Connect USB mouse via an OTG adapter - this way you can control the phone.
    2. Use ADB (if debugging is enabled) or do Hard Reset via hardware buttons.

    If the screen is completely black, the phone needs to be taken to the service.