Oppo F1S Plus read screen lock security successfully done by Hydra Tool 1. Run MTK Tool and choose "Sosc"
2. Choose Brand and Module as "Auto"
3. Go to "Service"--> "Tool" from Universal Option
4. Choose "Screen Lock Security"
5. Choose "Read Pattern" from "Method / Option" drop down menu.
6. Connect device to computer using USB Data Cable.
7. Wait until the operation is completed
Screen Short: 
BR
Dipendra Pathak