On Thu, Mar 31, 2011 at 06:03:32AM -0400, Cristiano Cesaretto wrote: > > > > Do you have write protection on your bootloader? > > > > Mike > > >=20 >=20 >=20 > No, I don't. > the bootloader is started after power up, if a certain pin is grounded. That does not determine if write protection is on or not. In many pics there is a config option to protecta section of low memory for the bootloader. The question is twofold: Do you have a pic with such an option and do you have that option turned on? BAJ > --=20 > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 Byron A. Jeff Department Chair: IT/CS/CNET College of Information and Mathematical Sciences Clayton State University http://cims.clayton.edu/bjeff --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .