CITROEN C3 PICASSO VALEO 24C128 / BSI CHANGE

Hello


Need help on a citroën C3 picasso with valeo 9666952380 x05 BSI


Previous bsi is dead, but have read out from 24c128


Need to find another used one


But someone can explain how to do ?


If my understanding is correct, i have to extract pin from old 24c128


Then virgin 24c128 from used BSI and program with lexia ?


Pin have to be extracted from new or old bsi ?


Thanks for your help