How to backup contacts and sms messages from OPPO Find Muse (R 821)

We used PhoneCopy.com service for this guideline. Using it, your can backup your contacts from your OPPO Find Muse (R 821) easily. The whole backup, including the settings, can be done in several minutes.
Download PhoneCopy for Android to your Android phone, which you can download free of charge. After downloading and installation, go through following steps.
Backup contacts and SMS from your Android
Run the app and create new account. You can check which contact databases you want to backup and synchronize. You can do multiple choice.
After successful login, press "Advanced & Account". Select "One-way sync" and after choose "This device >> server".
Contacts from your Android phone will be copied to PhoneCopy.com server in few seconds.
Your backup is now complete. Visit the PhoneCopy website to confirm that all your contacts were transferred correctly and to explore the other features your account offers.
Some additional tips:
The free PhoneCopy plan allows you to store up to 500 contacts, which is more than enough for most users. A premium plan is available if you need to sync more data or use advanced features.