Hitag2 Function??

[siyadk]

Can anyone kind enough explain to idiots like me what is Hitag function(7936). I am sure there are many of those who doesnt know about this function. At moment, it looks like crazy number or algorithms to me, but i am sure once i get to know what all those pages, bytes stand for, i can easily pick up and get whole picture

Those who would like to learn too.., can add request on this thread so that someone might explain it to us...

[achaccha]

In this case I would like to know if it is possible to unlock my chip PCF7936 and what would be the procedure.
I hope someone of good will can make a brebe explanation and answer the question of colleague:
that is Hitag2 function?
thanks

[gttuning]

Hi im new to hitag but so far i use to precoding transponders7946 for renaults cards.fit new transponder to card put on zedbull and press read all pages,it gives u valus of this chip.to precode transponders u have to change values and press write.know the chip is ready to code in car.here is some info what to change in pcf7947 laguna.

[Chokito5]

I would precode OPEL Astra H key, how can I do it?