Procedure
1. Open Unlocktool
2. Click: OPPO Tab
3. Search: Oppo F9
4. Select: SAFE FORMAT [KEEP DATA]
5. Hold Vol up & down then insert USB Cable
Sa FRP dial *#813#
Done
1. Open Unlocktool
2. Click: OPPO Tab
3. Search: Oppo F9

4. Select: SAFE FORMAT [KEEP DATA]
5. Hold Vol up & down then insert USB Cable
Sa FRP dial *#813#
Done
