Testing new Firmware
How it's done
In "ESP8266_firmware" folder I added AT_INSTRUCTION.PDF file so you can see all AT commands used.
Next take off FTDI from PC and set ESP8266 to working mode. Take in FTDI back to PC and open Arduino ide set port same as your FTDI (board does not matter , and open serial monitor.
Then set Both NL and CR , and change your ESP baud rate to yours (only in case you changed the default which is 115200).