i have an app which also does not work after boot-loader unlocking.
This app is "Du Transport" and it is an app which is used to replace smart cards in pubic transport. This requires a special sim from the telecom provider and with this SIM as authentication the app uses NFC to replace the smart cards.
i think it goes back to the secure partition which you talked about. your solution logically makes sense that it's a bug in the firmware/hboot or where ever which needs to be fixed rather than these individual apps fixed.
This should have also behaved the same way as in HTC One.
For the s-off solution, do you think we could we just reuse the tools/scripts which were created for HTC One?
HTC One MAX ||| HTC ONE > HOX+ > Nexus 7 > HOX > Xperia Arc > Xperia X10 Mini > K810 > K550 > K750