MPLAB ICD 4 Help

Some Questions to Answer First

1.	Which device are you working with? Often an upgrade to a newer version of MPLAB X IDE is required to support newer devices.

2.	Are you using a Microchip demo board or one of your own design? Have you followed the guidelines for resistors/capacitors for communications connections? See “Operation”.

3.	Have you powered the target? An external power supply must be connected to the target (preferred) or the debugger.

4.	Are you using a USB hub in your set up? Is it powered? If you continue to have problems, try using the debugger without the hub (plugged directly into the computer).

5.	Are you using the standard communication cable (RJ-11 type) shipped with debugger? If you made a longer cable, it could cause communications errors.

6.	Are you using the USB cable shipped with the debugger? Other USB cables may be of poor quality, too long or do not support USB communication.

Microchip Support Help Updated: 2019-06-25 10:29:53Z Help Page: 30