How to quickly and safely transfer all data from one Android phone to another

Transferring data between smartphones Android often turns into a headache: photos are lost, contacts are duplicated, or applications refuse to sync. Meanwhile, modern tools allow you to migrate between devices almost without loss - if you know the nuances of each method. This article will help you choose the best method depending on the amount of data, phone model and even the speed of the Internet connection.

We will analyze both official solutions from Google and manufacturers (Samsung Smart Switch, Xiaomi Migration), and universal tools like adb backup or cloud services. We will pay special attention hidden restrictions: why some applications are not transferred, how to bypass the limits of free cloud storage, and what to do if the new phone “does not see” the old one via Wi-Fi Direct.

Spoiler: the most reliable method depends on your situation. For owners of Samsung or Google Pixel proprietary software is suitable, and for the transition from Xiaomi to Realme It is better to combine the cloud and manual export. Read on - and you will save hours experimenting with settings.

1. Preparing for the migration: what can and cannot be transferred

Before starting the migration, check what data is supported the chosen method. Most tools transfer:

• 📞 Contact (including groups and notes to numbers)
• 📷 Photos and videos (but not always in the original resolution)
• 💬 SMS/MMS messages (without media files in some services)
• 🎵 Music and documents (if they are stored in standard folders)
• ⚙️ Settings systems (wallpaper, brightness, connected Wi-Fi networks)

But there will be problems with this:

• 🚫 Data of some applications (for example, saving games or chats in Telegram without cloud synchronization)
• 🚫 Wi-Fi passwords (if not used Google Backup)
• 🚫 Installed APK files (only links from Google Play)
• 🚫 System files (for example, screen calibration or camera settings)

⚠️ Attention: If storage encryption is enabled on your old phone (for example, on Samsung s Knox), some transfer methods may block access to files Before migrating, disable encryption in Settings → Security →. Encryption.

Also note that Data volume affects the choice of method:

Data volume	Recommended method	Time transfer
Up to 5 GB	Cloud (Google Drive, Mi Cloud)	10–30 minutes
5–50 GB	OTG cable or Wi-Fi Direct	30–120 minutes
More than 50 GB	Local backup to PC + manual transfer	2–4 hours
Applications and settings	Google Backup or Smart Switch	5–15 minutes

2. Method 1: Automatic transfer via Google Account

The easiest way is to use the built-in function Google backup. It works on all devices with Android 6.0+ and transfers:

• 📱 Installed applications (with links to Play Market)
• 📞 Contacts, calendars, tasks
• ⚙️ System settings (Wi-Fi, wallpaper, language)
• 💬 SMS and call log (only on some firmware)

How to do it:

1. On old phone go in Settings → Google → Backup.
2. Enable the option Backup copying to Google Drive and wait for completion (may take up to an hour).
3. On new phone when you first turn on, select Copy data from old device → From the cloud.
4. Login to same account Google and select the latest backup.

⚠️ Attention: Google limits free storage to 15 GB to your account. If you already have more than 10 GB occupied, the backup may not fit. Check the free space on Google Drive.

Advantages of the method:

• ✅ Works without cables and additional apps.
• ✅ Restores applications automatically (but not their data!).

Disadvantages:

• ❌ Does not transfer photos and videos (they need to be synchronized separately via Google Photos).
• ❌ On some firmware (for example, MIUI) a backup copy is created incomplete.

3. Manufacturers' utilities

Companies Samsung, Xiaomi, Huawei and others offer their own tools for migration. They are usually more reliable Google Backupas they take into account the features of the firmware.

Samsung Smart Switch

Works on devices Galaxy and even supports migration c iPhone. To Android→Android:

1. Install Smart Switch c Galaxy Store on both phones.
2. Connect devices via USB-C cable (recommended) or Wi-Fi.
3. On the old phone, select Send data, on the new one - Receive data.
4. Select data types (you can even transfer lock screen settings).

Xiaomi Migration (for Redmi/POCO)

Built in MIUI and works without installing additional applications:

1. On a new phone when setting up, select Data Transfer → With Android.
2. Use a QR code scanner to connect to your old device (must be turned on Transfer mode in Settings → Advanced).
3. Select data and confirm transfer.

Comparison of branded utilities:

Manufacturer	Utility name	Supports cable	Supports Wi-Fi	Transfers applications
Samsung	Smart Switch	✅	✅	✅ (system only)
Xiaomi	Mi Mover	❌	✅	❌
Huawei	Phone Clone	✅	✅	✅ (with restrictions)
Google Pixel	Quick Switch Adapter	✅ (adapter required)	❌	✅

⚠️ Attention: Branded utilities may not work between different brands (for example, Smart Switch will not transfer data from Xiaomi to Samsung without loss. In such cases, use the universal methods from the following sections.

4. Method 3: Transfer via cable (OTG or USB)

If the data volume exceeds 20 GB, cable connection is the fastest and most reliable method. You will need:

• 🔌 OTG cable (to connect the phone to the phone) or USB-C/USB-A cable + adapter.
• 📱 Both phones with at least 50% charge (carrying drains the battery).
• 🛠️ File management application (for example, Files by Google or Solid Explorer).

Step-by-step guide:

1. Connect your phones with a cable. On one of them, select the mode File transfer (MTP).
2. Open the file manager on new phone and find the folder with the old device (usually displayed as a removable disk).
3. Copy the folders:

   DCIM (photo/video)
   Download (downloads)
   Pictures (images)
   WhatsApp/Media (media from instant messengers)

4. To transfer contacts and SMS export them to file .vcf i .xml respectively (via the app Contact i Messages).

Synchronize contacts with Google Account (just in case)|Download the file manager on both phones|Check availability space on the new device|Disable battery optimization for the file manager-->

Advantages of the method:

• ✅ Transfer speed up to 40 MB/s (vs. 5-10 MB/s over Wi-Fi).
• ✅ There are no restrictions on the amount of data.
• ✅ You can selectively copy only the necessary files.

Disadvantages:

• ❌ A cable is required (sometimes specific, for example, USB-C to USB-C).
• ❌ Not all phones support the mode USB OTG (check in the specifications).
• ❌ Applications and their data will have to be transferred separately (via Google Play or adb backup).

What to do if the phone is not recognized via USB?

1. Check if the mode is enabled USB debugging in Settings → For Developers.

2. Try a different cable (cheap cables often do not support data transfer).

3. Reboot both phones.

4. On Xiaomi you may need to enable USB file transfer in Settings → Advanced → Settings developer.

5. Method 4: Wireless transfer via Wi-Fi Direct or local network

If you don’t have a cable at hand, you can use direct connection via Wi-Fi. This method is slower than the cable method, but does not require additional accessories. Suitable for transferring up to 10–15 GB.

Instructions for Files by Google:

1. Install the application on both phones.
2. On the old phone open Files → Share → Send.
3. Select files and press Send via Wi-Fi Direct.
4. On the new phone, confirm receipt (the password will be displayed on the screen of the old one devices).

Alternative applications:

• 📲 Send Anywhere —generates a 6-digit code for transfer.
• 📲 Xender —supports transfer of applications (APK).
• 📲 LocalSend —open source code, without unnecessary water.

⚠️ Attention: When transferring via Wi-Fi Direct do not interrupt the connection, even if the process is frozen. On some phones (for example, Samsung A52), interruption leads to the loss of some files without the possibility of resuming.

The transfer speed depends on the Wi-Fi standard:

Wi-Fi standard	Max. speed	Real transfer speed
Wi-Fi 4 (802.11n)	150 Mbit/s	5–8 MB/s
Wi-Fi 5 (802.11ac)	866 Mbit/s	10–15 MB/s
Wi-Fi 6 (802.11ax)	1.2 Gbit/s	15–20 MB/s

6. Method 5: Manual transfer via PC (for large volumes)

If you need to transfer more than 50 GB (for example, a collection of videos or projects), it is better to use a computer as intermediate storage. This method is also useful if:

• 🔄 Needed filter data before transfer.
• 🔧 Required convert files (for example, HEIC to JPG).
• 🛡️ You need to create an additional backup copy on your hard drive.

Step-by-step guide:

1. Connect old phone to PC via USB and select mode File transfer.
2. Copy all the necessary folders to the computer (we recommend using TeraCopy to check the integrity of files).
3. Connect new phone and transfer the data back.
4. For contacts and SMS export them to files:
   • Contacts: .vcf (via Google Contacts or application Contact).
   • SMS: .xml (applications SMS Backup & Restore).

apps for working with backup copies:

• 🖥️ Android File Transfer (for macOS).
• 🖥️ Dr.Fone —paid software for transferring applications with data.
• 🖥️ Syncios —a free alternative for managing multimedia.

⚠️ Attention: When connecting to a PC, some phones (OnePlus, Oppo) require unlock OEM Unlock in Settings → For developers, otherwise access to files will be limited.

7. Method 6: Transfer via ADB (for advanced users)

If standard methods do not work (for example, on custom firmware), you can use Android Debug Bridge (ADB). This method allows you to create full backup, including application data.

Requirements:

• 🖥️ Computer with installed ADB Tools (download from official website).
• 📱 Enabled USB debugging on the phone.
• 🔌 USB cable (preferably original).

Commands for backup:

# Create a backup copy (all data except system data)
adb backup -apk -obb -shared -all -f backup.ab

Restore to a new phone
adb restore backup.ab

Method limitations:

• ❌ Not all applications support backup via ADB (for example, WhatsApp blocks the export of chats).
• ❌ The backup copy can weigh tens of gigabytes.
• ❌ On some phones (Xiaomi s MIUI 12+) you need to disable MIUI Optimization in the developer settings.

How to bypass the limitation on backup via ADB?

1. Use an alternative tool Swift Backup (requires root).

2. To transfer data of a specific application (for example, Telegram) use the built-in export in the settings. messenger.

3. On firmware without restrictions (for example, LineageOS) ADB works without problems.

8. Frequent problems and their solutions

Even if you follow the instructions correctly, errors may occur. solutions:

Problem	Possible cause	Solution
Phones do not see each other via Wi-Fi	Wi-Fi Direct is disabled or mode is enabled energy saving	Enable Wi-Fi Direct in Wi-Fi settings and disable battery optimization for the file manager
The transfer is interrupted at 99%	Lack of space on the new phone or a failure in the file system	Clear 10-15% of the memory on the new device and try again
Applications cannot be transferred	Google Play Protect restrictions or custom firmware	Use APK Extractor to manually transfer APK files
Photos were transferred in low quality	Automatic optimization in cloud services	Transfer originals via cable or disable compression in Google Photos

If none of the methods worked:

1. Check whether storage encryption is enabled on your old phone.
2. Update the firmware on both devices to the latest version.
3. Try the transfer on another computer (sometimes USB drivers conflict).

FAQ: Answers to popular questions

Is it possible to transfer data from a phone to a phone without the Internet?

Yes, the following are suitable for this:

• 🔌 Cable connection (USB OTG).
• 📶 Wi-Fi Direct (does not require a network connection).
• 💾 Local backup to SD card (if both phones support memory cards).

Cloud services (Google Drive, Mi Cloud) are not suitable in this case, as they require an Internet connection.

Why do some applications not work after the transfer?

This happens due to:

• 🔑 Lack of license (for example, paid applications are tied to account).
• 📱 Incompatibility with the new version of Android.
• 🔄 Loss of application data (for example, game saves were not transferred).

Solution: reinstall problematic applications via Google Play and check the synchronization settings in their menu.

How to transfer data from phone to phone if the screen is broken?

Options:

1. Connect the phone to the PC via USB and copy the files manually (if enabled USB debugging).
2. Use OTG adapter + mouse to control the broken screen.
3. If the phone responds to touches, connect it to the TV via HDMI adapter (for example, USB-C to HDMI).

If the screen is completely non-functional, contact the service center to retrieve data via JTAG or Chip-Off.

How long does it take to transfer 100 GB of data?

Time depends on the method:

• 🔌 USB 3.0 cable: 30–60 minutes (speed ~30 MB/s).
• 📶 Wi-Fi 5: 2–3 hours (speed ~8 MB/s).
• ☁️ Cloud: 4-8 hours (depending on Internet speed).

To speed up, turn off background processes on both phones and use a high-quality cable.

Is it possible to transfer data from Android to iPhone?

Yes, but with limitations. Use:

• 🍎 Move to iOS (official app from Apple) - transfers contacts, messages, photos, mail.
• ☁️ Cloud services (Google Drive, Dropbox) to manually transfer files.
• 💻 PC as an intermediary (copy data to computer, then to iPhone via iTunes or Finder).

Please note: applications and their data cannot be transferred - they will have to be installed again from App Store.