Updated the DIY School Hearing Aids (v2.2) PDF File named (Unlocking ReBranded Hearing Aids) to say;
Signia Connexx TruHearing Thanks to [USER=5307]@jeffr[/USER] for a discovery that using the regular Connexx Signia also works for ReBranded → TruHearing TH 7 (Models TH 7 RIC LI, TH 7 RIC LI T, TH 7 IF LI) which are the same models as Signia 7 AX. Although the ReBranded TruHearing models are not listed in Connexx Signia, when you set them up correctly, and then Connect the hearing aids, the equivalent Signia 7 AX model will be connected for programming.