Use ISP burning method

When the flash has not burned the system or the system is damaged, you can burn boot through ISP first, and then burn the complete system through eth, usb or sd.

• Download tools.rar to windows and unzip;
• Enter the decompression directory, and then decompress ISP_5.16_Release.rar;
• Use the ISP tool to connect the computer and the serial port of the board. If the board has not burned the system before, just power on directly, otherwise enter uboot, execute debug, and close the serial debugging software:
  
• Enter the ISP_5.16_Release/ISP_5.16_Release directory, double-click to run Flash_Tool_5.0.16.exe:
  
• Clear flash data
  
• Burn GCIS.bin
  
• Burn IPL.bin
  
• Burn IPL_CUST.bin
  
• Burn u-boot_spinand.xz.img.bin
  
• Verification
  After the programming is complete, close the ISP programming software, open the serial port debugging software, and power on the board again to observe whether there is any printed information: