Procedure
Open Unlocktool
1. Click: OPPO Tab
2. Search: Oppo A15s
3. Select: [BROM] FACTORY RESET + FRP
4. Hold vol up & vol down then Connect USB cable
Open Unlocktool
1. Click: OPPO Tab
2. Search: Oppo A15s
3. Select: [BROM] FACTORY RESET + FRP
4. Hold vol up & vol down then Connect USB cable