* Activate 4G at any time on your Samsung Galaxy J3 and benefit of the 4G network of BASE.
* Go to the Start screen.
* Choose *Apps*.
* Scroll down.
* Choose *Mobile networks*.
* Choose *LTE/WCDMA/GSM (auto connec..*
* The Samsung Galaxy J3 has now been configured for use of 4G networks.
* Return to the Start screen.