Guide to WhatsApp Automatically Restarts on Reno Z

1.Background

OPPO Reno Z probabilisticly restarts during video call on WhatsApp. 
 

2.Models Involved

OPPO Reno Z（The first software version released: CPH1979EX_11_A.09）.
 

3.Regions Involved

France, Poland.
 

4.Solutions

Solution 1：Upgrade software online
Connect to the network 
Settings-->Software Updates -->Download the Upgrade Package -->Upgrade（Size: 184MB）
Solution 2：Upgrade by downloading the software package from OPPO official website
France official website:
https://oppo-fr.custhelp.com/app/software_update_detail/p_name/Reno+Z
Poland official website:
https://oppo-pl.custhelp.com/app/software_update_detail/p_name/Reno+Z
Upgrade steps:
Firstly, download the software upgrade package to PC (size: 2487MB).
Copy the software package downloaded to your phone that needs to be upgraded.
In File Manager of your phone, select the software upgrade package and click upgrade.
After software upgrade is completed, you can remove the package from the File Manager of your phone.
 

5.Script

Q1: Why does my phone automatically restart when using WhatsApp?
A1: Dear customer, this problem has been solved in the latest software version of CPH1979EX_11_A.10, kindly update your phone. We are sorry for inconvenience caused.