I did follow your instructions, as for the Q7 Plus watch the cable don’t fit on H2 watch, the pins are spread apart and also has a small little thing in middle to clip on to the watch, H2 watch connector is smaller has 2 magnets next to the pins. As I said before the Q7 Plus worked on my PC but its not working on H2 still getting notice that is malfunction and unrecognised device, could it be the H2 firmware version?
Model No.: H2
Android version: 5.1
Android security patch: 2016-06-01
Baseband Version: MOLY.WR8.W1449.MD.WG.MP.V6.P20, 2017/06/28 16:56
Kernel version: 3.10.72
Mon Dec 18 14:33:33 CST 2017
Build Number: NJY_H2_C1S_GSM_PHT_20171216