led sending card USB driver--->replace the USB cable and DVI Cable--->check the display card driver--->replace led sending card.
If you still have problems,you can contact our support dept: support@linsnled.comContact:LINSN LED
Phone:+86-137-8705-0055
E-mail:sales@linsnled.com
Company:Shenzhen Linsn LED Co.,Ltd.
Add:Building 11,SanLian Industry Park,SongBai Road,BaoAn District,Shenzhen,China.