* Activate 4G at any time on your OnePlus 3 and benefit of the 4G network of BASE.
* Go to the Start screen.
* Drag the arrow symbol up.
* Choose *SIM & network*.
* Choose *Preferred network type*.
* Tick *2G/3G/4G (Automatic)*.
* The OnePlus 3 has now been configured for use of 4G networks.
* Return to the Start screen.