Magic Byte Error

[maxi1134]

Getting this error:

Using 'COM3' as serial port.
Connecting....
Detecting chip type... ESP32
Connecting....

Chip Info:

• Chip Family: ESP32
• Chip Model: ESP32D0WDQ6 (revision 1)
• Number of Cores: 2
• Max CPU Frequency: 240MHz
• Has Bluetooth: YES
• Has Embedded Flash: NO
• Has Factory-Calibrated ADC: YES
• MAC Address: 24:0A:C4:B0:0D:34
  Uploading stub...
  Running stub...
  Stub running...
• Flash Size: 4MB
  Unexpected error: The firmware binary is invalid (magic byte=65, should be E9)

Tried with 3 of those
https://www.aliexpress.com/item/ESP32-Development-Board-WiFi-Bluetooth-Ultra-Low-Power-Consumption-Dual-Cores-ESP-32-ESP-32S-Board/32801337284.html

All give the same error: Unexpected error: The firmware binary is invalid (magic byte=65, should be E9)

Please provide details about your environment.
--> Windows with EshopmeFlasher, Yaml file generated on Docker

Please provide details about which ESP you're using.
-->
this one https://www.aliexpress.com/item/ESP32-Development-Board-WiFi-Bluetooth-Ultra-Low-Power-Consumption-Dual-Cores-ESP-32-ESP-32S-Board/32801337284.html

Description of problem:

GEtting Unexpected error: The firmware binary is invalid (magic byte=65, should be E9)
while trying to flash

Problem-relevant YAML-configuration entries:

Traceback (if applicable):

Additional information:

[OttoWinter]

The error is correct, the firmware binary (the file you give the flasher) should always start with the bytecode 0xE9. Could you please describe how you got the firmware file and what filename it has. I suspect you might be trying to upload the firmware.elf file, not the firmware.bin file.

[maxi1134]

I'm an idiot. I was trying to upload the .Yaml.

Figured ish how to use the CLI, but now getting a similar error:

Invalid head of packet (0x1B)

This was using esphomeyaml bedroom.yaml wizard
and esphomeyaml bedroom.yaml run

  INFO Running:  platformio run -d bedroom -t upload --upload-port /dev/ttyUSB0
Processing bedroom (platform: espressif32@>=1.4.0; board: esp32doit-devkit-v1; framework: arduino)
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32doit-devkit-v1.html
PLATFORM: Espressif 32 > DOIT ESP32 DEVKIT V1
HARDWARE: ESP32 240MHz 320KB RAM (4MB Flash)
DEBUG: CURRENT(esp-prog) EXTERNAL(esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
Library Dependency Finder -> http://bit.ly/configure-pio-ldf
LDF MODES: FINDER(chain) COMPATIBILITY(soft)
Collected 30 compatible libraries
Scanning dependencies...
Dependency Graph
|-- <ArduinoOTA> 1.0
|   |-- <WiFi> 1.0
|   |-- <ESPmDNS> 1.0
|   |   |-- <WiFi> 1.0
|   |-- <Update> 1.0
|-- <ESPmDNS> 1.0
|   |-- <WiFi> 1.0
|-- <Preferences> 1.0
|-- <Update> 1.0
|-- <esphomelib> 1.9.3 #9d5e290
|   |-- <AsyncMqttClient> 0.8.2
|   |   |-- <AsyncTCP> 1.0.1
|   |-- <ArduinoJson-esphomelib> 5.13.3
|   |-- <ESP Async WebServer> 1.1.1
|   |   |-- <AsyncTCP> 1.0.1
|   |   |-- <WiFi> 1.0
|   |   |-- <FS> 1.0
|   |   |-- <ArduinoJson-esphomelib> 5.13.3
|   |-- <FastLED> 3.2.0
|   |-- <ESPmDNS> 1.0
|   |   |-- <WiFi> 1.0
|   |-- <Wire> 1.0
|   |-- <WiFi> 1.0
|   |-- <Update> 1.0
|   |-- <ArduinoOTA> 1.0
|   |   |-- <WiFi> 1.0
|   |   |-- <ESPmDNS> 1.0
|   |   |   |-- <WiFi> 1.0
|   |   |-- <Update> 1.0
|   |-- <Preferences> 1.0
Retrieving maximum program size .pioenvs/bedroom/firmware.elf
Checking size .pioenvs/bedroom/firmware.elf
Memory Usage -> http://bit.ly/pio-memory-usage
DATA:    [=         ]  13.6% (used 44576 bytes from 327680 bytes)
PROGRAM: [======    ]  59.1% (used 774894 bytes from 1310720 bytes)
Configuring upload protocol...
AVAILABLE: esp-prog, esptool, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa
CURRENT: upload_protocol = esptool
Looking for upload port...
Use manually specified: /dev/ttyUSB0
Uploading .pioenvs/bedroom/firmware.bin
Serial port /dev/ttyUSB0
Connecting........_____....._____....._____....._____....._____....._____....._____

A fatal error occurred: Failed to connect to ESP32: Invalid head of packet (0x1B)
*** [upload] Error 2

[maxi1134]

Changed to a different Ubuntu machine and it worked. Problem solved