Issue loading firmware "Invalid head of packet"

All ESP8266 boards running MicroPython.
Official boards are the Adafruit Huzzah and Feather boards.
Target audience: MicroPython users with an ESP8266 board.
Post Reply
pgcudahy
Posts: 2
Joined: Mon Jan 23, 2017 7:19 pm

Issue loading firmware "Invalid head of packet"

Post by pgcudahy » Mon Jan 23, 2017 7:35 pm

I've got a NodeMcu v3 board from aliexpress that I'm trying to load micropython onto from my mac. I installed drivers, put it into firmware mode and ran
esptool.py --port /dev/cu.wchusbserial14110 write_flash --flash_size=detect 0 esp8266-20170108-v1.8.7.bin
but got the error
"A fatal error occurred: Failed to connect to ESP8266: Invalid head of packet (b'\r')"

I've tried a million variations on the esptool command but get either that error or "A fatal error occurred: Failed to connect to ESP8266: Timed out waiting for packet header"

Any ideas of where to start?

dpamio
Posts: 1
Joined: Sat Dec 02, 2017 11:20 pm

Re: Issue loading firmware "Invalid head of packet"

Post by dpamio » Sat Dec 02, 2017 11:22 pm

I'm having the same issue, were you able to fix it?

Post Reply