By the DevX mobile testing team. We tested every restore method in this guide on Samsung Galaxy S25, Google Pixel 9, OnePlus 13, and Motorola Edge running Android 15. We verified restoring from Google One backup during initial setup, restoring after factory reset, restoring specific data types (apps, contacts, SMS, call logs, device settings), and troubleshooting failed restores. All steps confirmed working March 2026.
Google backs up your Android phone automatically — apps, contacts, SMS messages, call history, device settings, Wi-Fi passwords, and photos (if Google Photos backup is enabled). When you get a new phone or factory reset your current one, you can restore all of this data during the setup process.
This guide covers how to check your backup, how to restore during phone setup, how to restore specific data types after setup, and what to do when restore doesn’t work.
Check Your Google Backup Before Restoring
Before you factory reset or switch phones, verify that your backup is current:
- Open Settings → System → Backup (or Settings → Accounts and backup → Back up data on Samsung under the Google section).
- Make sure Backup by Google One is toggled on.
- Check the date under each data type — it should show a recent date. If the last backup was weeks ago, tap Back up now to create a fresh backup before proceeding.
What Google Backs Up
Google One backup includes: installed apps and app data (for apps that support it), call history, contacts stored in your Google account, device settings (display, sound, Wi-Fi passwords, Bluetooth pairings, permissions), SMS and MMS messages, and wallpaper. Photos and videos are backed up separately through Google Photos (if enabled).
What Google Does NOT Back Up
Google backup doesn’t include: files stored locally on the phone (documents, downloads, music files), WhatsApp chat history (use WhatsApp’s own backup), data from apps that don’t support Google backup, passwords saved in non-Google password managers, and local game saves that aren’t synced to the cloud.
How To Restore During Phone Setup (New Phone or After Factory Reset)
The easiest time to restore from backup is during the initial Android setup wizard.
- Start setting up your phone (or factory reset to trigger the setup wizard).
- Connect to Wi-Fi when prompted.
- Sign in with your Google account — use the same account that has the backup.
- When you reach the “Copy apps and data” screen, tap Next.
- Choose “Can’t use old device” (or “A backup from the cloud”), then select your Google backup.
- Select your most recent backup from the list (it shows the device name and date).
- Choose which data to restore: Apps, Call history, SMS, Device settings, Contacts. Toggle on everything you want.
- Tap Restore and continue the setup process.
Apps download from the Play Store automatically in the background. This can take 15 minutes to over an hour depending on how many apps you have and your internet speed. You can use the phone while apps are installing.
Restore Using Cable Transfer (Phone to Phone)
If you have your old phone available, Android also offers direct cable transfer during setup:
- During setup, when prompted to copy data, select “A backup from an old phone”.
- Connect both phones with a USB-C to USB-C cable (or use the adapter included with some new phones).
- Follow the on-screen prompts to select what to transfer.
Cable transfer is faster than cloud restore and can transfer additional data that cloud backup doesn’t include.
How To Restore Specific Data After Setup
If you’ve already completed phone setup and want to pull specific data from your Google backup:
Contacts
Google contacts sync automatically when you sign into your Google account. If contacts are missing: go to Settings → Accounts → Google → Account sync and make sure Contacts is toggled on. You can also visit contacts.google.com to view and manage all contacts in your Google account.
Apps
Open the Play Store, tap your profile icon, tap Manage apps & device, and go to the Manage tab. Filter by “Not installed” to see all apps from your previous phone. You can install them individually or select multiple and install at once.
SMS Messages
SMS messages from Google backup can only be restored during the initial phone setup. There’s no way to restore them after setup is complete without factory resetting and starting over. If you need your messages, consider factory resetting and selecting the message restore option during setup.
Photos and Videos
If you backed up photos to Google Photos, they’re already accessible — just open the Google Photos app and sign in. To download photos to your phone’s local storage, open a photo, tap the three-dot menu, and tap Download.
Wi-Fi Passwords and Device Settings
Like SMS, Wi-Fi passwords and device settings are only restored during initial setup. If you skipped the restore step during setup, you’ll need to reconnect to Wi-Fi networks and adjust settings manually.
Samsung: Restore From Samsung Cloud
Samsung phones have a second backup system through Samsung Cloud, in addition to Google backup:
- During setup, sign into your Samsung account.
- When prompted, choose to restore from Samsung Cloud.
- Select the backup and choose what to restore.
Samsung Cloud backs up home screen layout, installed apps, call/message logs, contacts, calendar, Samsung Keyboard data, and Samsung app settings. You can also access it manually: Settings → Accounts and backup → Restore data (under Samsung Cloud).
Troubleshooting
No backup found: Make sure you’re signing in with the exact same Google account that has the backup. Check the email address carefully. You can verify which accounts have backups at one.google.com under Storage → Device backup.
Restore is very slow: App restoration depends on your internet speed since every app is re-downloaded from the Play Store. Connect to a strong Wi-Fi network. The phone is usable during the download process.
Some apps missing after restore: Apps that are no longer available on the Play Store or that are incompatible with your new phone won’t restore. Apps with very large data files (some games) may need to be re-downloaded manually.
App data not restored: Not all apps support Google’s backup API. Apps that don’t support it will be installed but start fresh without your data. Social media apps, email, and cloud-based services restore your data automatically when you log in (the data is stored on their servers, not in Google backup).
More Android How-To Guides From DevX
- How To Backup Your Android Phone
- How To Reset Samsung Phone
- How To Transfer Photos From Android to Computer
- How To Transfer Data From Android to iPhone
- How To Clear Cache on Android Phone
Frequently Asked Questions
Can I restore a Google backup to a different phone brand?
Yes. Google backups work across all Android brands. You can restore a Samsung backup to a Pixel, a OnePlus backup to a Motorola, etc. The core data (apps, contacts, SMS, settings) transfers regardless of brand. Brand-specific features (Samsung-specific settings, for example) won’t transfer to non-Samsung phones.
How long does Google keep my backup?
Google keeps your backup for up to 57 days after you stop using the device (when the device hasn’t been used for 57 days). After that, the backup may be deleted. If you’re planning to restore, don’t wait too long after deactivating your old phone.
Can I restore an old backup to a new phone?
Yes, as long as the backup still exists in Google’s servers (within the 57-day window). During setup, you’ll see a list of available backups with device names and dates — select the one you want.
Will restoring overwrite data on my new phone?
During initial setup, the restore fills an empty phone, so there’s nothing to overwrite. If you’re restoring contacts or Google Photos after setup, the data merges with what’s already on the phone rather than replacing it.
Can I restore just my contacts without everything else?
Yes. During the restore step in setup, you can toggle individual data types on or off. After setup, contacts sync automatically through your Google account — no full restore needed.
