While the default apps that come with the phone are okay to use, there are much better applications out there that provide more functionality. For example, True Caller fans would want True caller’s dialer app to be default Phone app. Some prefer Opera or Firefox to be the default browser application. You can access our full list of guides for Oppo Color OS 5.2 in this page.
If you are using newer phone running Oppo ColorOS 6, head to this new guide instead. You can also access our recommended smartphone list to get list of best smartphones that you can buy.
Go to [Settings], click on [App Management].
You will now see a list of applications that are installed on the phone.
Click on ‘Default App Management’ at the top of the screen.
You will now see a list of default application types like Launcher, Browser, Dialer etc. Click on the appliaction type for which you want to change default appliation and you will see the list of available applications. From This list you can select one as default app.