“Failed to get Device ID” in MPLAB 8 after using ICD3 with MPLAB X MPLAB 8 menu > Debugger (or Programmer) > Settings > ConfigurationPress “Manual Download” and select the .jam file (e.g. ICD3FW_012720.jam)from Program Files (x86)/Microchip/MPLAB IDE/ICD3 Hey presto, it should update and then work correctly again.