The second board doesn’t seem to be responding correctly. Do you have J-link or USB to UART? You can fix this by reflashing the firmware.
Please note that if you want to reflash the firmware by UART, you need to check your firmware version first.
command:
0x53 0x59 0x02 0xA4 0x00 0x01 0x0F 0x62 0x54 0x43
G60SM1SYv010009 is the model number reported on the radar, where 10009 is the version number. This means that this sensor supports the UART upgrade.
