So i used theH9SDmanager this morning on my H9S.
Once you hit the Green button (initialise SD card) it takes about 5 minutes or so to initialise the card(depending on the mmc card technology/speed) and then copy the devices root to the card.
The pictures show the status after the initial reboot, followed by restart using the sd card.
Things to remember:
1) when you initialise the card, the task is not completed until the original screen is shown e.g. you see Superblocks ... done, but then it takes about 4 minutes more to copy the root files
2) then hit Red button reboot.......this ensure sd card is mounted correctly
3) After reboot, hard press Power button, and select H9SDroot ---> select swap to SD
As the pictures show, works perfectly for me, BUT ... make sure that hacks like Flash Expander are not installed