Unitron TruFit needed

Hopefully you have Phonak/Unitron CS44a cables which have cable-pins 3&4 reversed versus the standard CS44 cables

If you don’t, just buy mini-DIN extension cables for a few bucks. The info to cross some wires is somewhere on the forum. (It also extends the life of the Hi-Pro cables.)

What Unitron Hearing Aid models do you have?

Here’s a link to → How to read DIY School PDF files

Suggested DIY School help files;

• 02 How to Program Your Hearing Aids
• Choose Hardware-Programming Device for Unitron