TCX to FIT file conversion and manually upload in into Garmin Tactix Delta device.

Hi all,

someone can help me ?

i don't need to upload in Garmin Connect but into device. i succesfully uploaded tcx (created from another device) into Garmin Connect (i see all data) but after the sync i can't see the activity into the device. So i tried to convert into fit file and uploaded into my Tactix into \New Files , after into Workout but the watch can't see the activity . I also rebooted .

ps probably the conversion in fit was not so correct so if you have a free tool to convert from tcx i can retry.

Probably i wrong something or it' not possible.