GX6605S Boot Logo Changer

Change the embedded JPEG boot logo in GX6605S firmware while preserving firmware size and layout.

GX6605S Boot Logo Changer Online Tools

Boot Logo Changer

Upload a firmware file, and this tool scans it for the embedded JPEG boot logo. Pick a replacement picture and it's automatically resized and re-encoded to the exact same byte size before being spliced back in — so the firmware's file size and layout never change. Nothing is uploaded anywhere; this runs entirely in your browser.

1. Select firmware file (.bin)

The tool works locally in the browser. It validates the Sunplus partition record, decodes standard LZMA resources, finds valid 1280×720 JPEG resources, and patches only the selected resource. Proprietary/encoded payloads are rejected safely instead of guessing an offset. Always keep a backup of the original firmware before flashing.