3.1.3.2 Limitations of Drag-and-Drop Programming

Lock Bits

Lock bits included in the hex file will be ignored when using drag-and-drop programming. To program lock bits, use MPLAB® X IDE or Atmel Studio 7.

Enabling CRC Check in Fuses

It is not advisable to enable the CRC check in the target device’s fuses when using drag-and-drop programming. This because a subsequent chip erase (which does not affect fuse bits) will effect a CRC mismatch, and the application will fail to boot. To recover a target from this state, a chip erase must be done using MPLAB® X IDE or Atmel Studio 7, which will automatically clear the CRC fuses after erasing.