WinTesla: Failed to initialise...

[GByte9]

When I choose a phone type in the open product window I always get the same message: Failed to Initialise Functionality Module. What can I do? I'm using a max232 cable which I've made.

[spark]

Have you build a f-bus or a m-bus cable`?
wintesla only works with m-bus!
When you have a f-bus cable you can simple make a m-bus/f-bus cable with soldering a diode (4148) into the cable.