# if we want do pre personalization, we should input key or not ?You must changed your default keys.
# that smart card already have that key or we must set it first .. ?It depends. Most of the cards have setted default keys. and also you can put your own keys at any time you want.
we follow the instruction to write command from our supplier >> is (a2) B0 (a1) (a0) <DATA>can somebody help us to understand this step, to fill a2,a1,a0 variable from that command . ?>
??> /send 00f00000at least you need send protect command after this command
3. Write the new card manager AIDinstead, try to write card manager keys. Coding for write command and eeprom address you can find from this thread Re: Pre-personalization step on JCOP cards
5. Fuse the cardfuse is optional, do not use it until you check keys