On Wednesday, June 10, 2015 at 12:15:03 AM UTC-4, SoaringXCellence wrote:
... I just wait until the Flarm symbol appears on the S7 screen,
then I know the Flarm is in full operation and the data transfer is complete.

If your stick is corrupted, you'll see the same thing...
Contact LX and get them to provide the status messages;
IIRC its in the "mandatory" list of FLARM features
3rd party displays are expected to support...

Hope that helps,
Best Regards, Dave