VP20 problem

[fasup]

I make VP20 by myself
it's work with GoldCard but in Silver card Why It's can't.
It's can't read PIC16F877 or 24c64
but in 16F84 and 24c16 no problem

and it can't use by Cardinal and simscan1.33

please help
Thankyou in advance

[Serdem]

I am using VP20 too and i don't have any problem with this programmer. May be your Silver card broken or something else. If you can read and write Gold card then you can do same things with Silver because structure is same for both card type.

Did you select correct card type from program and which program?

Best Regards...