When a phone is in a bricked or non-functional state, standard OTA updates and recovery menus become useless. The most definitive solution is to manually flash the device using an updated stock ROM via the tool.
The tool timed out attempting to communicate with the phone's bootloader. oppo cph1809 flash file qfil updated
To connect your device to the computer, you'll need to enable USB debugging on your OPPO CPH1809. Go to Settings > Developer options > USB debugging, and toggle the switch to enable it. When a phone is in a bricked or