Procedure
1. Open UNLOCKTOOL
2. Select Samsung Platform
3. Click Security
4. Search A03s
5. Click [Brom] Erase FRP
6. Hold Vol up & Vol down then connect Usb cable
1. Open UNLOCKTOOL
2. Select Samsung Platform
3. Click Security
4. Search A03s
5. Click [Brom] Erase FRP
6. Hold Vol up & Vol down then connect Usb cable