User manual

ColorOS 12 User Manual
Welcome to ColorOS 12
This user manual provides you with everything you need to know about ColorOS 12.
ColorOS 12 uses smart technologies to deliver an easy and smooth experience. A new
streamlined design makes every scenario simple while ensuring your security.
(Features vary slightly depending on the model and country. Please refer to the actual features
of your device.)
Get started
Set up your SIM cards
You can insert two SIM cards into your OPPO phone if it supports dual SIM dual standby
(DSDS).
You can set the default number to be used for making calls or choose a number when making
a call. Similarly, you can choose which SIM card is to be used for mobile data.

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