Serial data is bad on lite-on 74850c
I am trying to flash my lite-on by following the jungle flasher tutorial, but when it comes to the r707 part it always says that the serial data is bad. I read around that some people had the wrong com port selected, but i only have 2 so i try both every time. I am using a ck3 pro, a ck3 probe add on v2, a sata via card and sata cable, and i have got a serial to serial, a serial to usb and a usb to mini usb to choose from. Can someone please help?