Firmware Update Guide for Elegoo Mars 4 & Saturn 4
Keeping your Elegoo Mars 4 and Saturn 4 updated ensures stable performance, improved compatibility, and smoother printing. Firmware updates often fix minor bugs, improve touchscreen response, and enhance overall system reliability.
If your printer is stuck on boot, facing USB errors, or showing unusual behavior, a firmware update can usually resolve the issue.
When Should You Update Firmware?
Printer stuck on startup logo
Touchscreen not responding properly
USB files not detected
Print job failing due to system errors
Official firmware release from Elegoo
If your printer is working perfectly, updating is not mandatory. Only update when required.
How to Update Firmware (Mars 4 & Saturn 4)
Download the correct firmware for your exact model from the official Elegoo support page.
Format a USB drive to FAT32.
Copy firmware files to the root directory of the USB (do not place inside folders).
Turn OFF the printer.
Insert the USB drive.
Turn ON the printer.
The machine will automatically detect and install the firmware. Do not remove the USB or power off during the update.
Once completed, the printer will reboot automatically.
