If the device hangs during the first boot, wait at least 10–15 minutes. If it persists, return to Recovery Mode and perform a Wipe data (this will erase your files).
Always check the OPPO India Support ROM Page first for your specific model (CPH1609). oppo f3 nougat 711 official update download fix
Tap on the file and select . The phone will reboot and begin the installation. Using Recovery Mode (Advanced): Turn off your phone completely. If the device hangs during the first boot,
Save the .zip firmware file directly to your phone's internal storage (root directory, not inside a folder). Using File Manager: Open the File Manager app on your device. Find the downloaded firmware .zip file. oppo f3 nougat 711 official update download fix