2.13 Recovery Method

If PKoB4 becomes unresponsive, follow these steps to recover the tool:

  1. With the PIC32CZ CA80/CA90 Curiosity Ultra development board still powered, short the 2 pads for approximately 10 seconds.
    Figure 2-5. PKoB EBR Reset
  2. Open the latest version of MPLAB X IDE.
  3. Click Debug. The Debug Main Project window will be displayed.
  4. Select Hardware Tool Emergency Boot Firmware Recovery.
    Figure 2-6. MPLAB X IDE Interface
  5. Follow onscreen instructions to reset the tool to factory conditions.

For additional information on PKoB4, refer to the “MPLAB® PICkit™ 4 User’s Guide” (DS50002751), which is available for download at the following location: ww1.microchip.com/downloads/en/DeviceDoc/MPLAB%20PICkit%204%20ICD%20Users%20Guide%20DS50002751C.pdf.