RK100+ Multiple Color Rainbow LED Backlit Large Size USB Wired Mechanical Feeling Multimedia PC Gaming Keyboard,Office Keyboard for Working or Primer Gaming,Office Device(New RK100+)

Trouble shooting steps 1.buttons do not work;The lights on the keyboard flash and don't stay on; please make sure that the USB connector plug the port of the PC tightly; 2.Lights up but when pushing keys does not type on the screen; the keyboard have auto sleep function,if do not use for 10 minutes;press any key will be awakened and backlight turns on;then to see if the keys can type; 3.Tried to use. Lights up but won't type and keeps throwing driver issues; 1.please make sure that the USB connector plug the port of the PC tightly; 2.If keyboard still do not type,please replug the USB connector into the PC,,or turn off the PC ,then turn on PC ,to see if the keyboard can type;