Issue loading firmware "Invalid head of packet"
Posted: 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?
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?