os_printf("CHIP : %d | FREQ: %d MHz", chip_id, freq);
do you get the standard boot message "load..." at 74880 baud with any firmware?
If not you may not be able to set that baudrate on your serial adapter.
It may select another baud rate it counts as "near" or some use 9600 baud instead.
Cal
I am using nodeMCU, it worked well with lualoader, the server example worked well and I was able to toggle the outputs both from the lua terminal and from my cell phone.
I am stuck here and cannot go ahead, please help!!!!