What or symptom caused you to search for this firmware? What Windows version are you using to flash the phone? Have you already installed the Qualcomm USB drivers ?
Always use official or highly trusted stock ROMs to avoid security risks. Download the package matching your exact model configuration: Smartfren Andromax Prime (F17A1H) File Type: Stock ROM / Firmware Pack (.zip or .rar) Chipset: Qualcomm MSM8909
It looks like you are looking for a for the Andromax Prime (f17a1h) .
Download the official, uncorrupted from a trusted Android development forum or file host.
Verify the top of the QFIL window displays the active COM Port linking your device. Click the button to initiate the flashing process.