How to transfer applications from Android to Android Samsung while preserving data

Changing a smartphone, especially switching to a flagship line Samsung Galaxyoften raises a lot of questions about the safety of personal information. Users are rightly afraid of losing their correspondence history, banking application settings and, critically, saved passwords. Modern Android ecosystems offer several reliable migration tools, but each of them has its own nuances for working with specific types of data.

The migration process should be seamless so that you can continue working with your new device almost immediately after turning it on. In this article we will analyze in detail the mechanisms of operation of the proprietary utility Smart Switch, the capabilities of Google cloud synchronization and the specific features of transferring authentication data. You will learn which methods guarantee a complete copy of the folder structure, and which require manual adjustment.

Regardless of whether you are moving from an old budget device or from a device from another brand, proper preparation of both gadgets is the key to success. We will consider not only standard scenarios, but also complex cases when automatic scripts fail, requiring user intervention in system security settings.

Preparing devices for data migration

Before starting the transfer procedure, you must ensure a stable connection between the old and new smartphone. The most commonly used wireless connection is Wi-Fi Direct, which creates a direct access point between devices, bypassing the router. However, for transferring large amounts of data, such as videos or heavy games, it is preferable to use the cable method via a USB-C adapter.

It is critical to check the battery level on both devices. The process of cloning the system and applications can take from 30 minutes to several hours, depending on the amount of information. Draining one of your smartphones in the middle of the procedure may result in damaged files or incomplete transfer of settings.

⚠️ Attention: Make sure that all power saving modes and sleep modes for applications are disabled on your old device. Aggressive battery optimization can break the connection at the most critical moment of transferring data packets.

It is also worth freeing up space on the target device Samsungif it is not new. Although the system usually warns about lack of space, having a buffer zone of 10-15% of the total storage capacity will help avoid write errors. Check if the software on both phones is updated to the latest available version, as older firmware versions may have incompatible transfer protocols.

Using Samsung Smart Switch for full cloning

Proprietary solution from the South Korean giant, application Smart Switch, is the most effective tool for migration to brand devices. It is pre-installed on all modern Galaxy models and is available for download on Google Play other Android smartphones. The utility is capable of transferring not only application installation files, but also their internal data, including cache and logins.

To start the process, you need to open the application on both phones. On the new device, you should select the “Receiver” role, and on the old device, “Sender”. The system will automatically prompt you to select a connection method: wireless or via cable. When connected wirelessly, the phones will find each other using a unique code or scanning a QR code.

Once the connection is established, you will be asked to select categories of data to transfer. Here it is important to carefully note the “Applications”, “Application Data” and “Settings” items. It is these parameters that are responsible for ensuring that the icons fall into place, and the history of actions is preserved within the apps. The function restoring the home screen layout allows you to maintain the usual organization of widgets and folders.

The completion time of the operation depends on the read and write speed of the drives. During the process, device screens may go dark, but interrupting the connection is not recommended. Upon completion, you will receive a notification about the number of successfully transferred elements and a list of applications that require manual installation due to version incompatibility.

The role of Google account in app synchronization

If using cable connection is impossible, the Google cloud infrastructure becomes the main tool. When setting up a new smartphone for the first time Samsung the system will prompt you to enter your Google account information. After authorization, the list of previously installed apps from the store will automatically be updated Play Market.

It is important to understand the difference between migrating the application itself and its data. Google does a great job of downloading installation files (.apk), but saving progress in games or settings within utilities is up to the developer. Many modern applications use Google Drive Backup to automatically save the state before deleting or changing the device.

To check what exactly will be restored, you can go to the settings of your old phone. The path usually looks like Settings → Google → Backup. This section displays a list of applications whose data is stored in the cloud. If the desired app is not in the list, its settings will most likely not be transferred automatically.

Data type	Save method	Recovery reliability
Application list	Google Play Console	High (automatic)
Wi-Fi passwords	Google Sync	High (with one account)
Progress in games	Google Play Games / Developer Cloud	Average (depending on the game)
System application settings	Local backup / Smart Switch	High (Samsung-Samsung only)

It is worth noting that recovery from the cloud requires a stable Internet connection and can take considerable time with a large number of apps. Unlike local copying, here the speed is limited by the bandwidth of your communication channel.

Transferring saved passwords and authentication data

The most painful issue when changing a phone is access to accounts. Passwords saved in the browser Chrome or Google system password manager are synchronized automatically when you log in to your account. However, passwords saved within specific applications or in third-party managers require special attention.

For users of the Samsung ecosystem, there is a function Samsung Pass. If you used biometric authentication (fingerprint or iris) to sign in to apps on your old device, you can transfer this data through Smart Switch. After migration, you will need to re-enroll your fingerprints on the new device, but the connection to the applications will be restored.

Third-party password managers, such as 1Password, Bitwarden or Keeperwork independently of the system. To transfer them, just install the application on a new phone and log in to your master account. The entire database will be downloaded from the developer's secure cloud, so local file transfer is not required here.

⚠️ Attention: Two-factor authentication (2FA) through applications like Google Authenticator is not automatically transferred along with the application icon. It is necessary to use the function of exporting codes (via a QR code) in advance in the old application and import them in the new one, or link 2FA to the cloud account of the authentication service itself.

Banking applications are a special case. For security reasons, they often reset the session when the device is changed (hardware ID changes). You will have to go through a re-verification process, possibly using SMS codes or calling support, regardless of the method of data transfer.

What to do if you forgot the master password from your password manager?

If you use a third-party password manager and forgot the master password, it is almost impossible to recover your data due to end-to-end encryption. The only chance is to have a previously created emergency access file (emergency kit) or synchronize with another trusted device where the session is still active.

Nuances of transferring instant messengers: WhatsApp and Telegram

Messengers occupy a special place in the user's data structure, as they contain chat history, media files and voice messages. Telegram works entirely on the cloud, so to transfer it you just need to enter your phone number. All history, channels and settings will be loaded automatically, with the exception of secret chats that are tied to a specific device.

The situation with WhatsApp is more complicated, since the chat history is stored locally or in a Google Drive backup. When using Smart Switch, WhatsApp chat history is transferred correctly if you select the appropriate option in the data list. The system will create a temporary backup, transfer it and restore it on the new device when you first activate the messenger.

If you are switching without using Smart Switch, you must manually create a backup copy in the WhatsApp settings on your old phone. Path: Settings → Chats → Chat backup → Create backup. Make sure that the backup is uploaded to the Google Account that will be used on the new smartphone.

Solving problems and common errors during migration

Despite the streamlined processes, users may encounter errors. One of the common problems is that applications get stuck during recovery. This often happens if the new phone has aggressive antivirus software installed or if the version of Android on the old device is significantly lower than on the new one.

Sometimes applications are transferred, but crash on launch. This is due to cache incompatibility. In this case, it is recommended to go to Settings → Applications, find the problematic app and select “Clear cache” or “Clear data”. This will reset the application to factory settings, but will allow it to launch, after which you can log in again.

Another difficulty arises with applications downloaded not from the official store (sideloaded apps). Smart Switch can copy the installation file, but without the developer's signature or if the device hash changes, the application may refuse to work. In such cases, it is safer to download the latest version from a reliable source.

⚠️ Attention: Settings interfaces and menu item names may vary slightly depending on the version of the One UI shell and the version of Android. If you do not find the specified option, use the search in the settings (magnifying glass icon at the top of the screen).

In rare cases, some contacts may be duplicated. This happens if the contacts were saved simultaneously on the SIM card, in the Google account and in the phone memory. After the transfer is complete, go to the “Contacts” application, open the control menu and select the “Merge duplicates” function to restore order in the address book.

Is it possible to transfer applications if the screen on your old phone is broken?

If the sensor does not work, but there is an image, you can connect a USB mouse via an OTG adapter for control. If the screen is completely black, but the phone turns on and responds to sound, transferring via Smart Switch is only possible if you have previously allowed that computer or device to be trusted. Otherwise, the display will need to be repaired to confirm data transfer.

Are alarm and calendar settings transferred?

Yes, when using Smart Switch, alarms, calendar and notes settings are transferred completely. When using only a Google account, the calendar is synchronized automatically, but alarms may be reset, since they are often stored in the local system database and not in the cloud.

What to do with banking applications if they require updating?

After transferring, banking application data is often not suitable due to a change in device identifier. You will have to log in again using your username and password. To confirm login, you may need a code from SMS or a push notification to another trusted device. Make sure in advance that the SIM card is active and working in the new phone.

How much space does the application backup take up?

The size of the backup depends on the number of applications and the volume of their data. On average, a full system backup with data can take from 5 to 50 GB. Keep this in mind when using cloud services, as free space in Google Drive is limited to 15 GB, which is divided between Mail, Drive and Photos.

Can I interrupt the transfer process and continue later?

No, the transfer process via Smart Switch is a one-time operation. If the connection is lost, the procedure will have to start again. The system does not support a “pause” mode for data migration, as this can lead to file desync and damage to the database on the receiving device.