Deleting an application on Samsung Galaxy A51 is a situation familiar to many. Most often this happens by accident: an awkward touch, clearing the cache and deleting data, or even resetting the settings to factory settings. But even if you deliberately deleted the app and then realized that it was needed, you can return it in 90% of cases. The main thing is to act quickly and correctly.

In this article we will look at all possible ways to restore deleted applications on Galaxy A51, from the simplest (re-installation from Google Play) to advanced (working with ADB and backup copies). You will also learn how to prevent data loss in the future and what to do if the application is not restored using standard methods.

It is important to understand: not all applications can be returned equally easily. System utilities (for example, Calculator or Clock) are restored differently than games or instant messengers. And some apps (especially those that were pre-installed by your telecom operator) may require additional actions.

═══

1. The easiest way: re-install from Google Play

If you deleted an application that was originally installed from Google Play Market, the easiest way to get it back is to just download it again from the store. This method works for 99% of user apps (games, social networks, instant messengers, etc.).

How to do it:

  • 📱 Open Google Play Market on your Samsung Galaxy A51.
  • 🔍 In the search bar, enter the name of the removed application.
  • 📥 Click Install (if the application is paid - Buy).
  • ⚙️ Wait for the download and installation to complete.

If the application was previously purchased, it will be installed for free - the system will remember your purchase. The same applies to free apps: the download history is saved in your account Google.

💡

To quickly find previously installed applications, open the Google Play section Library → Previously installedAll are displayed there. apps that were ever on your device.

However, there are nuances:

  • ⚠️ If the application was by a remote developer from Google Play, you will not be able to install it again (alternative ones will be required methods).
  • ⚠️ Some system applications (for example, Samsung Health or Bixby) may not be displayed in the search - they need to be restored differently.

2. Google

Google saves the history of all installed applications in your account. This allows you to return a deleted app even if you do not remember its name. The method works for all applications downloaded through Play Market.

Instructions:

  1. Open Google Play on your phone or computer.
  2. Click on the profile avatar in the upper right corner → Manage applications and device.
  3. Go to the tab Management → Previously installed.
  4. Find the desired application in the list and click on the icon ↓ Install.

If the list is too long, use a filter by alphabet or installation date. Please note: here are displayed all applicationsthat have ever been on any of your devices under this account Google.

Are there any applications in the "Previously installed" section|

Are you logged into your Google account correctly|

Is there enough space on the device for installation|

Is the application supported by your version of Android-->

This method is especially useful if you deleted the application a long time ago and do not remember its name. However, it will not help with:

  • 📱 System applications (for example, Samsung Pay or Game Launcher).
  • 📦 Applications installed from APK files (not through Google Play).
  • 🔄 apps deleted with resetting.

3. Restoring Samsung system applications

System applications Samsung (for example, Samsung Notes, Samsung Internet or Bixby) are deleted differently than regular apps. They cannot just be downloaded from Google Play - they are integrated into the device’s firmware! But you can return them!

There are two reliable ways:

Method. 1: Through Settings → Applications

  • 📱 Open Settings to Galaxy A51.
  • 🔧 Go to Applications → click on the three dots in the upper right corner → Show system ones.
  • 🔍 Find the desired application in the list (for example, Samsung Members).
  • ⚙️ Click Enable or Updateif the button is active.

Method 2: Through Samsung Galaxy Store

Many system applications Samsung can be reinstalled through the company store:

  • 📱 Open Galaxy Store (icon with a blue logo Samsung).
  • 🔍 Enter the name of the application in the search.
  • 📥 Click Install or Update.
What should I do if the application is not displayed in the Galaxy Store?

If the system application is not in Galaxy Store, this may mean that it was completely removed from the firmware (for example, after rooting or unofficial firmware). In this case, only flashing the device or restoring it via Samsung Smart Switch (more on this below).

⚠️ Attention: Some system applications (for example, Knox or Secure Folder) can require additional rights or even reset settings for correct operation after recovery.

Application type Recovery method Examples
Custom (from Google Play) Re-installation from the store WhatsApp, Instagram, games
System (Samsung) Galaxy Store or Settings → Applications Samsung Health, Bixby, Notes
Deleted from root access Flashing or ADB Any uninstalled system APK
Applications of the telecom operator Reset settings or contact the operator MTS TV, Beeline Music

4. Restoring from a backup (Google Drive or Samsung Cloud)

If your Galaxy A51 function was enabled automatic backupthe chances of returning deleted applications are much higher. Samsung and Google offer two types backups:

Recovery via Google Drive

Google automatically saves the list of installed applications (but not their data!) during backup. To restore:

  • 📱 Go to Settings → Accounts and archiving → Backup and recovery.
  • 🔄 Click Recover data and select the latest backup.
  • ✅ Check the box Applications and confirm the restoration.

Recovery via Samsung Cloud

Samsung Cloud may not save only a list of applications, but also their data (for example, settings or cache). To restore:

  • 📱 Open Settings → Accounts and Backup → Samsung Cloud.
  • 🔄 Select Restore data and specify the required backup.
  • ✅ Check Applications and wait for the process to complete.

⚠️ Attention: Restoring from a backup may overwrite the current data on the phone. It is recommended to first create a new backup if there is important information on the device.

Yes, automatically via Google Drive|

Yes, manually via Samsung Cloud|

No, I do not create it|

I don’t know how to do this-->

If there is no backup, try the following methods:

  • 🔍 Check whether APK file applications are saved in the folder Download or on the card memory.
  • 📧 Look for the purchase confirmation email (if the application was paid) - there may be a download link there.

5. Advanced methods: ADB and manual recovery

If standard methods do not help, you can try to return the application via Android Debug Bridge (ADB). This method is suitable for experienced users and requires connecting the phone to a computer.

⚠️ Attention: Incorrect use ADB can lead to malfunctions of the device. If you are not sure of your actions, skip this section.

Instructions:

  1. 💻 Install Android SDK Platform-Tools on your computer.
  2. 📱 Turn on USB debugging on Galaxy A51: 
    Settings → About phone → Software information → Build number (press 7 times to become a developer)

    Settings → Developer options → USB debugging (enable)

  3. 🔌 Connect the phone to the PC and confirm trust in the computer.
  4. 🖥️ Open the command line (Windows) or terminal (Mac/Linux) in the folder with platform-tools.
  5. 📋 Enter the command to check connections: 
    adb devices

    (your device serial number should be displayed).

  6. 🔄 To restore the system application, use: 
    adb shell cmd package install-existing

    (for example, for Samsung Internet this com.sec.android.app.sbrowser).

💡 List of system application packages Samsung Galaxy A51 can be found in the file /system/priv-app/ or through the command adb shell pm list packages -s.

If you don't know the name of the package, try searching for it on the Internet using a query like: site:xda-developers.com "application_name" package name.

💡

The ADB method only works for system applications that have been disabled, but not completely removed. If the APK file has been erased from the device, flashing will be required.

6. Reflashing the device (as a last resort)

If you deleted critical system application (for example, Services Framework or Samsung Experience), and the phone began to work incorrectly, you may need to flashing. This is an extreme measure that will return the device to its factory state.

How to do it:

  • 📥 Download the official firmware for Samsung Galaxy A51 (model SM-A515F) from the site SamFW or SamMobile.
  • 💻 Install the app Odin (for Windows) or Heimdall (for Mac/Linux).
  • 📱 Switch the phone to Download Mode: 
    Turn off the device → Press Volume Up + Volume Down → Connect the USB cable
  • 🔄 In Odin select the downloaded firmware file (usually from extension .tar.md5) and click Start.

⚠️ Attention: Flashing will remove all data from the device! Make a backup copy of important files first. Also make sure that the firmware is suitable for your model. all system applications will be restored, but user apps and data will have to be installed again. Galaxy A51 (check in Settings → About phone → Model).

After flashing, all system applications will be restored, but user apps and data will have to be installed again.

7. How to prevent loss of applications in the future

To no longer encounter the problem of deleted applications, follow these tips:

  • 🔒 Disable random deletion: 
    Settings → Lock screen → Advanced settings → Prevent deleting applications from the home screen
  • ☁️ Set up automatic backup: 
    Settings → Accounts and archiving → Data archiving → Automatic archiving (enable)
  • 📦 Save APK files: Use applications like APK Extractorto create backup copies of installed apps.
  • 🛡️ Block system applications: Instead of deleting, disable unnecessary apps through Settings → Applications → Disable.

It is also useful to regularly check the list installed applications and remove only those that you are sure of. To do this:

  1. Open Settings → Applications.
  2. Sort the list by installation date (⋮ → Sort by: Installation date).
  3. View apps that have not been used for a long time, and delete them deliberately.

8. Frequent errors and their solutions

When restoring deleted applications, users often encounter typical problems. Here are the most common problems and ways to solve them:

Problem Possible. reason Solution
The application does not install from Google Play Incompatibility with the Android version or region Check the application requirements or use a VPN to change the region
The system application is not restored via Galaxy Store The application was removed from the firmware Restore via ADB or reflash the device
After recovery, the application crashes Corrupted data or incomplete installation Clear the application cache or reinstall it
The application cannot be found in the Google Play history The application was not installed through this account Check others Google accounts on the device

If none of the methods helped, the application may have been uninstalled at the firmware level (for example, after rooting or installing custom software). In this case, only flashing or contacting a service center will help Samsung.

It is also worth remembering that some applications (especially banking or corporate) can block work on devices with unlocked bootloader or root access. If you have previously carried out such manipulations, this may be the cause of problems.

═══

FAQ: Answers to frequently asked questions

Is it possible to return an application that was deleted 2 years ago?

Yes, if it was installed via Google Play —the history of purchases and installations is saved indefinitely. To restore:

  1. Open Google Play on your computer.
  2. Go to Library → Previously installed.
  3. Find the application by installation date or name.

If the application was deleted from Play Market, try to find it APK on trusted sites (for example, APKPure or APKMirror).

How to restore data inside a deleted application (for example, saves in the game)?

Application data (saves, settings, cache) are stored separately from the apps themselves. To restore them:

  • 🔄 If backup was enabled in Google Drive or Samsung Cloud, restore the data from the backup (see section 4).
  • 📁 Check the folders /Android/data/ or /Android/obb/ for the presence of application files (sometimes they remain even after uninstallation).
  • ☁️ If the application supports cloud saves (for example, games linked to Google Play Games), log in to your account after reinstallation.

⚠️ Without a backup, it is almost impossible to restore user data.

What what to do if the application does not open after recovery?

The problem may be related to:

  • 🔧 Damaged cache — clear it in Settings → Applications → [name] → Memory → Clear cache.
  • 📥 Incomplete installation —delete the application and install it again.
  • 🛠️ Incompatibility with the Android version —check the application requirements in Google Play.
  • 🔒 Manufacturer restrictions —some applications (for example, banking) can block work on devices with root access.

If the problem persists, try installing an older version of the application (for example, through APKfile).

Is it possible to return standard Samsung applications if they were deleted via ADB?

Yes, but this will require:

  1. 📥 Find the original APKapplication file (can be extracted from the official firmware for Galaxy A51).
  2. 💻 Install it via ADB: 
    adb install -r file_name.apk
  3. 🔄 If the application is a system one, you may need to move it to the folder /system/priv-app/ (root access is required).

⚠️ No experience with ADB and root it is better to contact the service center.

Why are some applications not restored via Samsung Cloud?

Possible reasons:

  • ☁️ No backup copy - check whether archiving was enabled before deleting.
  • 📱 Device model mismatch - backup from another phone may not work approach.
  • 🔄 Samsung restrictions —some system applications are not archived to the cloud.
  • 💾 Not enough space —check the free space in Samsung Cloud.

To check available backups, open Settings → Accounts and backup → Samsung Cloud → Restore data.