In the case of a factory reset, it is important to backup your data. You can do this by saving your contacts to your Google Account. On restoration, they automatically show on your device after you sign in. You wont need to restore contacts manually.You will always need a Google Account in order to download Apps & Games from the Google Play Store. Based on that, you can very easily backup your data.And here is how you do it.
1. Google Drive
- Open the Google Drive App on the device you wish to back up.
2. Backup Data
- Go to the Settings menu on the Google Drive App.
- Click "Back up now"
- This will backup everything that is listed in your "Active backups" list.
You are now ready to Factory Reset your device.