hi i tested the chip- MPlab 5.6 (wich is the latest version i used for microchp firmware) i bougt CCS compiler an saw ICD-S is the same thing as mine. so i flashed with the downloadable tool ICDS.exe from CCS a tool wich made the "icd-s" work on 16f an 18f devices i have to "switch" the software which is loaded in the rom in 16f876. i tryd "A" version but nothing is working with ICD soft from ccs. i have no replacement chip- or does anybody know firmware for ccs with the 16f876a or 17Lf876a which i have an can burn. thanks tobias strassen -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist