chip 4d has one serial or not

[big633]

can we change serial no on chip 4d ?
Because tpx2 very expensive about 15 usd up
but 4d only 3 usd
the problem is serial can not change after program because it 's lock fro factory
how can we change it
or it has unlock serial no
thanks

[LATTINO]

can we change serial no on chip 4d ?

We cant


Because tpx2 very expensive about 15 usd up
but 4d only 3 usd.

Better is buy head electronic, in this head is possible change the serial and is very cheaper.


the problem is serial can not change after program because it 's lock fro factory
how can we change it
or it has unlock serial no
thanks


Regards friend

[big633]

4d electronic is too big to put in keys