Changing a smartphone is often accompanied by the need to move a huge amount of personal information. Photos, videos, documents and music tracks can take up tens of gigabytes, and wireless transfer in such cases becomes too slow or unstable. Using a personal computer as an intermediate buffer is one of the most reliable and fastest methods data migration between devices.
Unlike cloud services, where the speed is limited by the provider's tariff, a wired connection via USB provides maximum channel bandwidth. This is especially true when upgrading to a new model with more internal memory. You get full control over the process and can selectively copy only the necessary folders without overloading the storage with garbage.
Next we will analyze in detail all the stages of preparing the equipment, setting up connection modes and directly copying files. You will learn how to avoid common mistakes and why some files may not appear in Windows Explorer immediately after connecting the cable.
Preparing equipment and setting up devices
Before starting the procedure, make sure that you have a working USB cable that can transfer data, and not just charge the battery. Often, users are faced with the fact that the computer does not see the phone precisely because of the use of a cheap “charge-only” cable. Connect both smartphones to the USB 3.0 ports (usually blue) on the back of the system unit for maximum speed.
On both devices, you need to activate debugging mode or simply allow access to files. When you first connect your Androidsmartphone to your PC, a system notification appears on the phone screen. By default, the device may be in “Charge Only” mode, which hides the file system from the outside world.
Swipe down the notification shade and find the “USB Charging” option. Click on it and select the option File transfer or MTPin the menu that appears. Only after this manipulation will the computer operating system recognize the phone as a removable storage device.
⚠️ Attention: If you are using a laptop, connect both devices to the power supply. The process of copying large amounts of data can significantly drain the battery, and suddenly turning off the phone will damage the file system.
☑️ Ready to transfer
Connecting smartphones to a personal computer
Modern operating systems of the Windows family automatically install the necessary drivers for most mobile devices. However, sometimes manual intervention is required if the phone is detected as an "Unknown Device". In this case, it is recommended to install official software from the manufacturer, for example Samsung Smart Switch or Xiaomi PC Suite, although this is rarely necessary for simply copying files.
Open "This PC" (or "My Computer") in Explorer. You should see two new icons with the names of your phone models. If there is only one icon, check the connection of the second cable or try a different USB port. It is important not to mix up the devices so as not to copy the files to themselves.
Double-click on the icon of the first phone. You will be taken to the internal storage. This is where the main folder structure is located. To effectively find the information you need, it is useful to understand what each directory is responsible for. Below is a table of the main system folders.
| Folder name | Contents | Importance when transferring |
|---|---|---|
| DCIM | Photos and videos from the camera | Critical important |
| Download | Downloaded files from the browser | Medium |
| Music | Audio recordings and ringtones | Optional |
| Documents | Office documents and PDF | High |
| Messenger media files | High (if not via the cloud) |
If the computer sees only one phone, try disconnecting the second one and connecting it to the port to which the first one was connected. Sometimes the USB controller gets stuck on one device.
Manual copying of multimedia and documents
The easiest transfer method is the classic “Copy-Paste” operation. Open the folder DCIM/Camera on your old device, select all photos and videos. Right-click and select Copy. Then create a temporary folder on your computer’s hard drive, for example Backup_Old_Phone, and paste the contents there.
After completing copying from the old device, disconnect it and connect the new smartphone. Go to the appropriate folder on your new phone and move the files from the temporary folder on your PC to the phone's memory. This method ensures that you don't lose a single byte of information in the process.
However, the manual method has its drawbacks. It does not transfer application settings, call history and SMS messages. This data is stored in protected system partitions, access to which through a regular explorer is limited without rights Root. Therefore, this method is ideal for media files, but requires the addition of other tools for complete migration.
When copying thousands of small files, the process can take considerable time. The progress bar in Windows may become stuck on one file if it is damaged or has invalid characters in its name. In such a situation, it is better to skip the problematic file than to wait for hours for completion.
What to do if copying is stuck?
If progress is frozen on a specific file, click "Skip". These are often broken cache files that have no value. Continue transferring the remaining data.
Using specialized software for migration
Smartphone manufacturers often offer their own utilities that automate the process of transferring data from Android to Android via a computer. apps such as HiSuite from Huawei or tools from Sonycan make full system backups. You create an image of the old phone on a PC, and then deploy it on the new one.
This approach allows you to save not only files, but also the arrangement of icons on the desktop, alarm settings and even Wi-Fi passwords. The interface of such apps is usually intuitive: you select the “Backup” item, tick the required data categories and start the process.
- 📂 Full backup: Saves the state of the entire system, including applications.
- 🔄 Recovery: Allows you to deploy data on a device of the same brand without loss structures.
- 🔒 Encryption: Many utilities allow you to protect your backup with a password.
The main disadvantage of this method is the connection to the ecosystem. A backup created in a Samsung app most likely cannot be restored on a Xiaomi phone using their proprietary software. In cases of brand change, it is better to use universal solutions or manual media copying.
⚠️ Attention: When restoring a full backup to a new phone, all current data on it may be overwritten or deleted. Be sure to make a backup copy of the new device before starting the recovery if it already has important information.
Transferring contacts and messages via PC
Contacts and SMS are the most difficult data to transfer through a simple file explorer, since they are stored in databases and not as individual files. To migrate them via a computer, it is best to use the export/import function.
On your old phone, go to the Contacts application, select the menu and click Export. Save the file in .vcf format to internal memory. Copy this file to your computer, and then transfer it to the memory of your new smartphone. On a new device, just open the contacts file, and all entries will automatically be added to the address book.
For SMS messages the situation is more complicated. Exporting to a readable format is often not available using standard Android tools. This is where third-party applications come to the rescue, creating a backup copy of messages to an XML file. This file can also be transferred via a PC and restored to a new device using the same application.
Using an account Google is often easier for this task, but if you do not have access to the Internet or you basically only use a PC, the file method .vcf is the only reliable option for contacts.
Solving common connection problems
Sometimes the computer sees the phone, but does not allow you to enter the folders, giving an access error or showing a blank screen. This is often due to the fact that the phone is locked. Unlock your smartphone screen and confirm the request to trust this computer if it appears.
Another common problem is an unstable connection. The cable may be coming loose or the USB port may be loose. If the transfer is interrupted in the middle, the destination file will be damaged. Always check the integrity of the files after copying by comparing their size or opening a few random photos.
If the copy speed is extremely slow (less than 1 MB/s), check whether USB debugging mode is enabled on your phone, which sometimes conflicts with normal file transfer mode. Also try turning off the antivirus on your PC during the transfer, as it can scan each copied file in real time.
Connection stability is more important than speed. It is better to use a short, high-quality cable and a USB 2.0 port than a long, cheap cable in a USB 3.0 port that constantly falls off.
⚠️ Attention: Menu interfaces and item names may differ depending on the version of Android and the manufacturer’s shell (MIUI, OneUI, ColorOS). If you do not find the item you need, use the search in your phone settings.
Frequently asked questions (FAQ)
Can I transfer installed applications via a computer?
You cannot directly copy folders with applications - they will not run on the new device due to differences in system signatures and paths. However, using the manufacturer's proprietary software (for example, Samsung Smart Switch), you can transfer APK installation files and application data if they support migration.
Why does the computer not see the second connected phone?
Most often the problem is in the drivers or lack of power from the USB ports. Try connecting the phones one at a time. Also make sure that the notifications on both devices are set to "File transfer" and not "Charge only".
Is it safe to interrupt file copying?
No, it's dangerous. Interrupting the process may damage both the copied file and the phone's file system. If copying is stuck, try ending the process through the task manager, but be prepared for the fact that some files will have to be copied again.
Do you need root access to transfer data via a PC?
To transfer photos, videos, music and documents, superuser rights (Root) are not needed. They are required only if you want to copy system settings, messenger databases, or hidden folders of specific applications, access to which is limited by the system.
Which file system format is best for an intermediary flash drive?
If you use a flash drive as an intermediate link instead of a direct connection, the exFAT format is best suited. It is supported by both Android and Windows, and allows you to store files larger than 4 GB, which is critical for long videos.