First, the fast charge of OPPO mobile phone does not need to be set, as long as the original charger and data cable can be fast charged.
Second, the mobile phone cannot be fast charged, you can turn the mobile phone off and restart it again to try fast charging.
Third, after restarting the phone or not fast charge, you can restore the phone to factory Settings, taking OPPO R9S mobile phone as an example, the method of restoring factory Settings is as follows:
1. First, click \"Settings\" on the OPPO R9S mobile desktop.
2. Select the \"Other Settings\" option after entering.
3, then click \"Restore phone\" to enter.
4, after entering, select the \"Erase all content and Settings\" option. Fourth, after the mobile phone is restored to the factory Settings, it is still unable to fast charge, you can carry the mobile phone and warranty card to the OPPO mobile phone official repair center for testing and repair.