Use Google drive for backup and
recovery
Create backup
1. Access Settings > Accounts, login Google
account and enable Account sync.
2. Wait for the system to complete
synchronization automatically.
3. Use the Wi-Fi network to back up your device
as the data size may be too large to back up
using mobile data.
Restore Backup
After a factory reset or when you switch to a new
device, log in to your Google account on the
device and enable Account sync to restore the
data on the phone.
Factory reset
Note:
1. Restoring factory settings will wipe all app
data, contacts, text messages, and so on.
Backup important data before a factory reset.
2. If "Erase internal storage" is enabled, ensure
that all important files, such as photos and
documents in the phone and local backup,
have first been copied to another device.