I been printing for weeks and no problem but out of the blue, this happened (VIDEO) https://www.youtube.com/watch?v=9FwNdzVOf8c  

Tried 3 SD cards, printig from PC, detatching LCD from chasis, checked ALL cables, Motherboad fans are spinning, AUTO HOME WORKS(except after error and need to reset printer), reset Firmware and still nothing works

Also, PRONTERFACE SHOWED THESE ERRORS Error:Line Number is not Last Line Number+1, Last Line: -1 Error:Line Number is not Last Line Number+1, Last Line: -1 Resend: 0 Error:Line Number is not Last Line Number+1, Last Line: -1 Error:Line Number is not Last Line Number+1, Last Line: -1 Resend: 0 echo:Unknown command: “5” echo:Unknown command: “1” Error:Line Number is not Last Line Number+1, Last Line: 1 Error:Line Number is not Last Line Number+1, Last Line: 1 Resend: 2 Error:Line Number is not Last Line Number+1, Last Line: 1 Error:Line Number is not Last Line Number+1, Last Line: 1 Resend: 2 Error:Line Number is not Last Line Number+1, Last Line: 2 Error:Line Number is not Last Line Number+1, Last Line: 2 Resend: 3 Error:Line Number is not Last Line Number+1, Last Line: 3 Error:Line Number is not Last Line Number+1, Last Line: 3 Resend: 4 echo:Unknown command: “M420 S1 Z2”