How to update the firmware

For Windows, right-click the computer and select Manage, click Device Manager, click to expand Ports, find the port corresponding to the CH340 driver. Run the MKSLaserTool and click MKS ESP32 Download Tool, select the right port which is corresponding to CH340 driver and the update firmware. Set baud to 25000, Flash size to 8MB, and select ESP32 S3, click Start, it will prompt firmware successfully flashed after the update is completed.

1) Update by MKSLaserTool software

Please download LaserTool from https://github.com/LONGER3D/Longer-Laser and install it. Connect the laser engraver to computer with Type C cable, turn on the engraver. 

2) Update by ESPTool Web

Enter https://espressif.github.io/esptool-js/ in the browser. This webpage can connect to the serial port to flash the firmware online.Select the baud rate 115200 and connect to the CH340 serial port, then Click “Erase Flash” first, then enter the Flash address 0x0 and select the firmware, then click Program to start burning. 

3) Update by LaserBurn APP

After the engraving machine is connected to the LaserBurn App, click Me→About→Firmware Update→RAY5 mini to upgrade the firmware.