Use Rufus to Create a Bootable USB or External Drive with the ISO Image
Rufus download link: https://rufus.ie/downloads/. It is recommended to download the latest version.
Download the corresponding version of the ISO image from the official website.
For example, to download SP7020H, click on the resource file to start the download.
Install Options: Set the volume label to "Rescuezilla" as shown in the image below.
Note:system files will be stored in the IMG_files folder on the USB drive.
Booting from USB
Enter BIOS (quick click the Delete or F2 key a few time once powering on), select USB boot, choose "restore all," and press Enter to proceed.
Choose the Boot Method
Select USB device boot and press Enter.
Completion Message
Note: If you encounter a prompt indicating that only one hard drive was detected, type y to continue the restoration
When the process completes, you will see "process completes, exit88." This indicates that the restoration is finished. Shut down the device and remove the USB.