On Mon, 29 Sep 1997 14:10:12 -0700 WF AUTOMA=?iso-8859-1?Q?=C7=C3O ?= writes: >Does someone know how to desprotect a EEPROM of PIC16C84? The method reported a couple of years ago was to raise Vdd to about 12V, go into programming mode and write 1 to the CP bit several times. Upon lowering Vdd to normal range, the chip could be read unprotected, both the program and data EEPROM. I never tried it though.