Owners of smartphones based on Android are often faced with the need to transfer all information to a new device or protect themselves from accidental data loss in the event of a breakdown. The question of what exactly ends up in the archive is critically important, since many users mistakenly believe that the copy saves absolutely all the contents of the internal memory. In fact, this process is more selective and depends on the synchronization parameters you have chosen.
Understanding the structure backup helps to avoid unpleasant surprises when, after flashing, important chats or banking application settings are lost. The standard mechanism Google works on the principle of saving the configuration and key data, and not creating a complete sector-by-sector copy of the disk, as professional tools for PCdo. That is why it is important to know which sections of the system are covered by protection, and what will have to be transferred manually.
In this article we will analyze in detail which categories of files and settings can be automatically saved in the cloud or on local storage. You'll learn the subtleties of working with system settings that are often overlooked, and understand why some apps don't save their progress. This knowledge will allow you to competently prepare for any changes in the operation of your gadget.
System settings and device configuration
One of the main functions of the built-in backup mechanism is saving operating system settings. When you perform a factory reset or change your phone, Google Account allows you to restore your familiar environment. First of all, this applies to passwords from Wi-Fi networks to which you have ever connected, which eliminates the need to re-enter complex combinations of characters.
Display settings such as brightness, font size and design themes are also saved, if they are supported by the manufacturer. It's important to note that alarm, ringer, and vibration settings are also often included in the list of saved data. However, system behavior may vary depending on the version Android and shell of the manufacturer, for example MIUI or OneUI.
⚠️ Attention: The settings of some system applications, especially those related to security or biometrics (fingerprints, facial recognition), are not saved in the cloud for security purposes and must be configured again.
The language and region settings, which are usually restored automatically, deserve special attention. If you used specific configurations to access the Internet, they can also be saved, but require verification after restoration. To manage these parameters, use the menu Settings → System → Backup.
Applications and their data: what is saved and what is not
The list of installed applications is one of those things that is restored almost perfectly. After entering your account on the new device, the system will offer to download previously installed software. However, there is an important nuance here: whether progress in games or settings within apps is saved depends on the developer of the particular application and its use Google Play Games or your own cloud services.
Many modern apps, such as instant messengers or social networks, store correspondence history and media files on their servers. But local data, such as drafts in notes or offline map caches, may be lost without additional export. This is especially true for applications that do not support cloud synchronization or require manual activation of the backup function within their settings.
- 📱 List of installed applications from Google Play Store.
- 💾 Data of applications using Android Backup Service.
- 🔑 Saved passwords in Google Chrome and autofill.
- 🎮 Progress in games that support cloud saves.
It is worth considering that some banking applications and highly secure apps may block the creation of backup copies of their data. This is done to prevent theft of confidential information. Therefore, before resetting your phone, always check whether critical apps have their own data export function or cloud synchronization.
Why do some games not save progress?
Some game developers do not use standard Google APIs for saves, preferring their servers or local storage. In such cases, progress is lost when the application is deleted if you are not logged into your account within the game itself.
Multimedia: photos, videos and files in the cloud
The issue of saving photos and videos is one of the most painful for users. Standard backup of settings does not include to the gallery in the form in which we are accustomed to seeing files in folders. For multimedia, a separate service is used - Google Photoswhich synchronizes media files with cloud storage.
If you have synchronization enabled, then all pictures taken and downloaded videos automatically go to the cloud. When you change your device, just log into your account and your entire media library will become available. However, it is worth remembering the limits of free storage, which is 15 GB and is divided between mail, disk and photos in original or compressed quality.
Files stored in a folder Downloads or documents created in office applications are also not automatically copied through the standard system backup mechanism. To keep them safe, you must use Google Drive or other cloud services, such as Dropbox or OneDriveby installing the appropriate applications and setting up autoload.
Use the "Free up space" function in Google Photos only after you make sure that all pictures are fully uploaded to the cloud and have a check mark.
Contacts, calendar and messages
The most reliable part of the ecosystem Android is the synchronization of contacts and calendar events. If your phone numbers are saved in your account Googleand not in the SIM card memory or on the device itself, they will be restored instantly after authorization. This applies not only to names and numbers, but also to photographs, email addresses and birthdays.
With messages SMS i MMS the situation is more complicated. The standard backup mechanism in the latest versions has learned to save the history of correspondence, but this process can take time and require a stable Internet connection. Message applications from different manufacturers (for example, from Android I learned how to save the history of correspondence, but this process can take time and require a stable Internet connection. Messaging apps from different manufacturers (e.g. Samsung or Xiaomi) may have their own backup mechanisms that are different from the system ones.
For the calendar, it is important that events are created in your Google account, and not in the local calendar of the device. In this case, all appointments, reminders and recurring events will be available on any device immediately after logging in. You can check where new events are saved in the Calendar application settings.
| Data type | Saving method | Automatic |
|---|---|---|
| Contact | Google synchronization | Yes |
| SMS / MMS | System backup | Yes (on new Androids) |
| Photo / Video | Google Photos | Setting required |
| Passwords Wi-Fi | Google Account | Yes |
Passwords and autofill data
One of the most convenient features is saving passwords via Google Password Manager. When you log into sites in a browser Chrome or in applications, the system prompts you to save your credentials. This data is encrypted and linked to your account, allowing you to automatically sign in to services on a new device without having to remember complex combinations.
In addition to passwords, autofill information is saved, such as delivery addresses, bank card details (encrypted) and phone numbers. This significantly speeds up the process of placing orders in online stores after switching to a new smartphone. Managing this data is available through the Google settings menu or via the link passwords.google.com.
⚠️ Attention: Data saved in third-party password managers (for example, LastPass, 1Password) will not be available in the Google system manager. You will need to install the appropriate application and log into your account in it.
It is worth noting that for this function to work on a new device, you will need to verify your identity by entering the Google account master password or using biometric unlocking, if one has been configured. This provides an additional level of security for your personal data.
☑️ Check before resetting the phone
Local copying and advanced features
Not all users trust cloud storage or have fast Internet to download large amounts of data. In such cases, local backup is relevant. To do this, you can use a computer and a utility Android Debug Bridge (ADB)that allows you to create complete backups of applications and their data if rights are not required on the device. root.
The command to create a local backup is as follows:
adb backup -apk -shared -all -system -f backup.abThis method allows you to save even data that is not usually synchronized with the cloud. However, the recovery process may be more complex and require having a computer on hand. Also, many smartphone manufacturers offer their own proprietary utilities for PC, such as Samsung Smart Switch or Mi PC Suite, which can create full system images.
Using memory cards SD also remains a popular way to store backups, especially for media and documents. Many phones allow you to transfer some application data to an external drive, although modern versions Android limit this ability for security and performance reasons.
A combined approach (cloud for contacts and photos + local copy for heavy data) ensures maximum safety of information.
Frequently asked questions (FAQ)
How much space does an Android backup take?
The size of the copy depends on the number of applications and their data. It usually takes from 50 MB to several gigabytes. Photos and videos are not included in this limit because they are stored separately in Google Photos.
Is it possible to recover data from Android to iPhone?
Partly yes. When you initially set up your iPhone, you can transfer contacts, calendar, photos and videos, as well as some free apps if you use a special cable or Google cloud services.
Do you need to remove the SIM card before resetting the settings?
No, you do not need to remove the SIM card, but it is recommended to remove the SD memory card if you do not want to format it. All data from the SIM card (contacts, messages) are usually saved separately or copied to the account.
What happens if you interrupt the restoration process from a backup?
The process may pause or end with an error. Some data may not be installed. You can usually reboot the system and try the restore again, but it's best to have a stable Wi-Fi connection.
How long does a Google backup last?
Backups are kept for 57 days after you stop using the phone from which they were created, or if you haven't signed into your Google Account for more than a year. After that, they can be deleted.