REFERENCE Oppo F9 (CPH1823) Remove Password via Unlocktool

[Papa Blanks]

Open Unlocktool
1. Select Oppo
2. Click Oppo F9 (CPH1823)
3. Click Factory Reset (2) EMMC Under META
4. Off Unit /Hold Volume + & - /Insert USB Cable

for FRP just Dial *#813#