Seems this might be a Sailfish issue.
https://together.jolla.com/question/...oth-bluetooth/
Some of the comments are from as as late as Jan 2017.
So maybe you can ask in more Saidfish/Jolla forums.
Also, have you read through this page?:
http://doc.qt.io/qt-5/qtbluetooth-in...g-qt-bluetooth
Seems support my vary...