BB0703 / BB0703+ FAQ

[F. N.]

There are a few Microchip MCU which cannot be buck erased when Vdd < 4.7V, such as 18F8722. The Row Erase will be used instead under Programmer-to-Go. This will post some limit on code protection due to the fact the code protection will need a buck-erase.

The solution for these MCU which may still needs a programmer-to-go programmer, is: turn off all code protection.

[Mikeduan]

The following blog link illustrated a step by step tutorial on how to  manually update BB0703(PICkit 2) Operating system:
http://augroups.blogspot.com/2009/04/q-what-does-it-mean-when-busy-led.html

There is very few opportunity ever since the PICkit 2 V2.4x release for a PICkit 2 losing a OS. However it still happens from time to time even in a very very small possibility. When this is happening the PICKit 2 will blink the red LED indicating there is no functioning OS. To get the PICKit 2 back to normal, a new PICkit 2 OS needs be manually downloaded into the PIC18F2550 chipset.

The following tutorial is a step by step guide on how to manually upgrade the PICKit 2 OS. It also answers the following frequent asked question.