Free chip is a new kind of chip.it can replace these chips: 4C,4D,TPX1,TPX2. Free chip also can be copied forever. Free chip is a new kind of chip.it can replace these chips: 4C,4D,TPX1,TPX2.Free chip also can be copied forever.We also provide the new kind of key programmer machine to copy and write the Free chip,Such as new ad900 plus,nd900 and CN900 key programmer. Free Chip