try use other usb, maybe its ur USB Stick got issue. But, if u already tried it and still doesnt working try inserting or saving diff media types in your USB Stick ex. Mp3, MP4, Avi(xvid,divX), MKV, Vob, etc. and test if ur LED tv can scan it and read all the data inside the stick.
If not, maybe theres something in the USB Hub of ur TV or just you bought a CRAPPY SH*T Thing.
try use other usb, maybe its ur USB Stick got issue. But, if u already tried it and still doesnt working try inserting or saving diff media types in your USB Stick ex. Mp3, MP4, Avi(xvid,divX), MKV, Vob, etc. and test if ur LED tv can scan it and read all the data inside the stick.
If not, maybe theres something in the USB Hub of ur TV or just you bought a CRAPPY SH*T Thing.
Cheer mate!