Deleted an important application from Samsung Galaxy A51 and don’t know how to get it back? Don't panic - in 90% of cases, apps can be restored without complex manipulations. Even if you cleared the cache or reset the settings, there remain backup copies, installation history in Google Play and system tools Androidthat will help you recover lost data.

In this article we will analyze all the current methods - from basic (re-installing from the store) to advanced (working with ADB and restoration from backups). We will pay special attention to the nuances specifically for the model Galaxy A51, including restrictions One UI and features of working with an account Samsung. If the application was uninstalled a long time ago or after a factory reset, we have solutions for such cases.

Before you begin, check if the application is hidden in the menu. On Samsung A51 some system apps (for example, Samsung Health or Bixby) are not completely removed, but only deactivated. To make sure that the application is really erased:

  1. Open Settings → Applications.
  2. Tap on the three dots in the upper right corner and select Show system ones.
  3. Scroll the list or use the search by name.

If the app is not in this list, proceed to the recovery methods below.

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1. Restoring through Google Play history

The easiest and fastest way is to return the application from the list of previously installed ones. Google Play. This method works even if you deleted the app years earlier, provided that you used the same account. corner. Google.

On Samsung Galaxy A51 the algorithm is like this:

  1. Open Google Play Store.
  2. Tap on the profile icon in the upper right corner.
  3. Select Manage applications and devices → Management.
  4. Go to the tab Installed and tap on the filter (funnel icon).
  5. Select Not installed —all apps that have ever been deleted will be displayed here.
  6. Find the application you need and click on the download icon (↓).

If the application is not displayed in the list, check:

  • 🔄 Account synchronization: go to Settings → Accounts and archiving → Account management and update the data Google.
  • 📱 Device: history is tied to a specific device. If you have previously used another smartphone, the list may differ.
  • 🗑️ Clearing history: If you manually cleared the installation history in Google Play, the data may have been lost.
⚠️ Attention: Some applications (for example, banking or corporate) may be tied to a specific version Android. If your Galaxy A51 has been updated to new firmware, and the app is no longer supported, installation will be blocked.

Check your Internet connection (Wi-Fi or mobile data)

Make sure that the device has enough memory (at least 500 MB free)

Log in to the correct Google account (if there are several)

Update Google Play to the latest version-->

2. Using Samsung Cloud backups

Samsung Galaxy A51 supports automatic backup of data to Samsung Cloudincluding the list of installed applications. If the function was activated before deletion, you can return the apps along with their settings.

To restore applications from a backup:

  1. Go to Settings → Accounts and Backup → Backup and Restore.
  2. Select Restore data.
  3. Log in to your account Samsung (if required).
  4. From the list of available backups, select the most recent one (check the creation date).
  5. Tick the checkbox Applications and click Restore.

The process can take from several minutes to an hour - depending on the Internet speed and the amount of data. After recovery, reboot the device.

Backup type What is restored Restrictions
Samsung Cloud List of applications, settings, data of some apps Free only 15 GB, requires a Samsung account
Google Drive List of applications (without data), contacts, calendar No backup copies of APK files themselves
Local backup (Smart Switch) Full copy of the system, including applications Requires prior creation of a backup on a PC

On the Samsung Galaxy A51, backups to Samsung Cloud are created automatically only when connected to Wi-Fi and charging the device. If these conditions were not met, the backup may not have been saved.

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Before restoring from a backup, check whether the Samsung Cloud storage is full. If the volume is exceeded, delete old copies or expand the tariff.

3. Restoring via Smart Switch (for a full reset)

If you performed a factory reset (Hard Reset) and lost all applications, getting them back will help Samsung Smart Switch. This method is only suitable if you have a previously created backup on a PC or external drive.

Instructions for Galaxy A51:

  1. Install Smart Switch on your computer from Samsung official website.
  2. Connect your phone to a PC via a USB cable (use the original cable for a stable connection).
  3. In the app, select Restore.
  4. Specify the path to the backup file (usually this is a folder Samsung\SmartSwitch\Backup on drive C).
  5. Tick the checkbox Applications and start the process.

Important: when restoring via Smart Switch all current data on the phone will be erased. If after the reset you have already installed new apps or added files, you will have to transfer them again.

⚠️ Attention: Do not interrupt the recovery process via Smart Switch - this may damage system files. If the connection is interrupted, restart your phone and start again.

4. Manual recovery via ADB (for experienced users)

If standard methods did not help, and the application was previously installed from a APKfile (not from Google Play), you can try to restore it via Android Debug Bridge (ADB). This method is suitable for system applications or apps deleted with rights root.

To work you will need:

  • 🖥️ A computer with ADB drivers installed and Platform Tools.
  • 📱 Enabled USB debugging on Galaxy A51 (Settings → About phone → Build number - tap 7 times, then return to Settings → Developer options → Debugging via USB).
  • 📄 APK file of the remote application (can be downloaded from trusted sources, for example, APKPure).

Step-by-step guide:

  1. Connect the phone to the PC and confirm permission to debug.
  2. Open the command line in folder with platform-tools.
  3. Enter the command to check the connection: 
    adb devices

    Your serial number should be displayed Galaxy A51.

  4. Install the APK file with the command: 
    adb install path_to_file.apk

    For example: adb install C:\Downloads\com.example.app.apk.

If the application is a system one (for example, Samsung Pay or Knox), an additional command may be required to restore rights:

adb shell cmd package install-existing package_name

You can find out the exact name of the package using the command:

adb shell pm list packages | grep "part of the name"
What to do if ADB does not see the device?

1. Check if Samsung USB drivers are installed (download from the official one). site).

2. Try another USB cable (preferably the original one).

3. Switch the connection mode on your phone from “Charging” to “File Transfer”.

4. Restart both your phone and your computer.

5. If you are using Windows, run the command prompt as an administrator.

5. Searching for hidden or disabled applications

On Samsung Galaxy A51 many pre-installed apps are not completely removed, but only disabled or hidden. They can be returned without re-installation.

How to find and activate hidden applications:

  1. Open Settings → Applications.
  2. Tap on three dots → Show system ones.
  3. In the search bar, enter the name of the desired application (for example, Game Launcher or AR Emoji).
  4. If the app is disabled, click on it → Enable.
  5. For hidden applications (for example, Samsung Free), you may need to reset the cache: Storage → Clear cache.

Some system applications (for example, Samsung Pass or Secure Folder) require additional configuration after switching on:

  • 🔐 For Secure Folder you need to re-configure the password or biometrics.
  • 🎮 Game Launcher may require updating via Galaxy Store.
  • 📊 Samsung Health request authorization in your account.
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Before turning on system applications, check their compatibility with the current version of One UI. Some apps (for example, old versions of Bixby) may not work correctly after updates.

6. Restoring application data (saved files, settings)

If you managed to return the application itself, but internal data was lost. (such as game progress, settings, or downloaded files), try the following methods:

For games and apps with cloud synchronization:

  • 🎮 Connect to the account Google Play Games or developer (for example, Supercell ID for Clash of Clans).
  • 📥 In some applications (for example, WhatsApp) backups are stored in Google Drive —the first time you start after recovery, the app will offer to restore the data.

For local data (without cloud):

  1. Use a file manager (for example, Solid Explorer) to search for leftover files along the path: /sdcard/Android/data/[package_name] or /data/data/[package_name] (the latter requires root).
  2. If the data is not damaged, copy it to the appropriate folder after reinstalling the application.

To restore SMS, calls or contactsdeleted along with the application (for example, Messages or Truecaller), use:

  • 📞 Samsung Cloud (section Contacts and SMS).
  • 📧 Google Contacts (synchronization via account Google).
  • 🔄 Specialized apps like DroidKit (requires connection to a PC).
⚠️ Attention: Do not use third-party apps to recover data from internal memory if you do not understand the principles of their operation. firmware Samsung Galaxy A51 with firmware One UI 5.0+ such tools can lead to encryption failure and loss of all data on the device.

7. If all else fails: alternative solutions

In rare cases, restoring the application is impossible (for example, if it is deleted from Google Play or incompatible with the current version Android). Consider the alternatives:

Problem Solution Risks
The application has been removed from Google Play Search for APK on trusted sites (APKMirror, APKPure) Probability of downloading malware
Incompatibility with the Android version Installing an old version of APK or updating the firmware Unstable operation or application failure
The system application has been removed (for example, Knox) Reset to factory settings or flashing Loss of all data on the device
The application requires root access Getting root via Magisk or KingRoot Loss of warranty, risk of device brick

To install APK from third-party sources:

  1. Download the file from a trusted resource (check the hash amount or signature).
  2. In your phone settings, allow installation from unknown sources: Settings → Biometrics and security → Installing unknown applications.
  3. Run the downloaded APK and follow the instructions.

If we are talking about system application (for example, Samsung Pay or AR Zone), which cannot be restored using standard methods, the only reliable way is flashing via Odin. This process is complex and risky, so we recommend contacting a service center Samsungif you do not have experience.

FAQ: Frequently asked questions about restoring applications

Is it possible to restore application deleted a year ago?

Yes, if:

  • It was installed via Google Play —check the history in your account.
  • Archiving was enabled on the phone Samsung Cloud or Google Drive.
  • You created a local backup via Smart Switch.

If none of these steps were performed, recovery is unlikely.

Why does the application not open after restoring from a backup?

Possible reasons:

  • The backup was created on a different version Android/One UI - an update is required.
  • The application data is damaged - try clearing the cache (Settings → Applications → [name] → Storage → Clear cache).
  • The application requires re-authorization (for example, banking apps).
How to restore a deleted game with saved progress?

Methods depend on the type of synchronization:

  • Cloud save: Connect to your account in the game (Google Play, Facebook, server developer).
  • Local save: Check the folder /Android/obb/[package_name] or /Android/data/[package_name] —sometimes save files remain.
  • Backup copy: If you used Titanium Backup or Swift Backup, restore data from backup.

For games with server saves (for example, Genshin Impact or PUBG Mobile), progress will be restored automatically after re-installing and logging into your account.

Is it possible to restore the application after resetting to factory settings without backup?

Partially. You can:

  • Install the application again from Google Play (but without the saved data).
  • Return system apps via Settings → Applications → Show system ones.

Restore user data (messages, files, settings) without backup impossible.

What to do if the "INSTALL_FAILED_INSUFFICIENT_STORAGE" error occurs when restoring via ADB?

Solutions:

  1. Clear cache and data Google Play Store (Settings → Applications → Google Play Store → Storage).
  2. Delete unnecessary files or applications to free up at least 1 GB of memory.
  3. Try installing the APK manually (without ADB), after allowing the installation from unknown sources.
  4. If the error persists, run the command: 
    adb shell pm trim-caches 999G

    and repeat the installation.