Sunplus Firmware Editor 'link' -

Never modify a file without having the original. Use a USB drive to "Dump" your current firmware from the receiver’s settings menu. Step 2: Load the File into the Editor

While there is no single official "Sunplus Firmware Editor" software suite provided by the manufacturer, the community has developed several tools and workflows. Sunplus Firmware Editor

For the dashcam community, specific scripts (often written in Python or Perl) have been circulated on forums (such as dashcamtalk or GoPrawn). These scripts are designed specifically to parse the headers of Sunplus SPCA chips, allowing users to split the firmware partition or recalculate checksums after modifications. Never modify a file without having the original