Inside the extracted folder, you should see:
After verifying across multiple repair forums (GSM Hosting, Needrom, and official Walton service center leaks), here is the confirmed working flash file details: walton primo gh9 flash file without password
Since the Walton Primo GH9 uses a MediaTek processor, you must install on your Windows computer. Without these drivers, the PC will not recognize the phone when it is in "BROM Mode" (Download Mode). Inside the extracted folder, you should see: After