Connecting Nextion NX3224K028 HMI display to KC868-A16S?

[markusd1984]

if you don't use 4G module, you can use GSM RXD,TXD for Nextion display.
GSM:
RXD:GPIO15
TXD:GPIO13

5V also can get from 4G module socket, there is "V" is 5v. T is "TXD". R is "RXD"

Thanks, can I use port F instead (socket for 433mhz) ?

Since I already have a 4pin cable that i'd like to use. What is the layout left to right?