One of the contents of oppor 1 1 was accidentally deleted. Can you find a way to restore it?

If you back up to the OPPO cloud service, you can restore it through the cloud service. The specific method is as follows:

First, click the "Settings" icon on the phone desktop of OPPO R 1 1, as shown in the figure below.

2. Then, in the drop-down menu of the phone setting interface, select the "cloud service" option, as shown in the figure below.

3. After entering, open the "Calendar" column of the cloud service interface.

Fourth, the OPPO cloud service will automatically synchronize and sign in to the mobile phone, as shown in the figure below.

Finally, you can check your notes in the calendar.