Hi,

I apologize for my ignorance but I do not understand how to update firmware Eheim Controller.
The documentation (in download section) is little confused for me.

Currently :

Profilux P3 <-- rs 232 --> Profilux-port of the Profilux Eheim Controller
PC View <-- rs 232 --> PC View-port of the Profilux Eheim Controller

What is the correct wiring (step by step) and cables to flash the Profilux Eheim Controller ?

Thank you...