Any "OTA" attempt fails with "Wrong Magic Byte" error

[lschapker]

esphome:~# esphome version
Version: 2024.2.1

I'm using a "Lilygo-Internet-POE" board and have been able to flash my "bin" file to it using an USB cable. I can connect the board to my POE switch and directly connect to the board using the "visit" button from with the ESPHome UI.
From within the "visit" page, if I attempt to do an OTA Update (using the exact same bin file I just USB flashed), I ALWAYS receive a "Wrong Magic Byte" error almost immediately.

I've tried with and without setting a OTA password. All OTA update attempts fail with the "WMB" error. When I use the esphome UI to see the "logs" of the device, I can see whether the password is or isn't defined (currently it is defined).

INFO ESPHome 2024.2.1
INFO Reading configuration /root/config/lilygo-test.yaml...
INFO Starting log output from (ip address) using esphome API
INFO Successfully connected to lilygo-test @ (ip address) in 0.001s
INFO Successful handshake with lilygo-test @ (ip address) in 0.075s
[20:32:33][I][app:102]: ESPHome version 2024.2.1 compiled on Mar 2 2024, 19:56:30
[20:32:33][C][logger:447]: Logger:
[20:32:33][C][logger:448]: Level: DEBUG
[20:32:33][C][logger:449]: Log Baud Rate: 115200
[20:32:33][C][logger:451]: Hardware UART: UART0
[20:32:33][C][ethernet:222]: Ethernet:
[20:32:33][C][ethernet:354]: IP Address: (ip address)
[20:32:33][C][ethernet:355]: Hostname: 'lilygo-test'
[20:32:33][C][ethernet:356]: Subnet: 255.255.254.0
[20:32:33][C][ethernet:357]: Gateway: (ip address)
[20:32:33][C][ethernet:362]: DNS1: (ip address)
[20:32:33][C][ethernet:363]: DNS2: 0.0.0.0
[20:32:33][C][ethernet:383]: MAC Address: (Mac Address)
[20:32:33][C][ethernet:388]: Is Full Duplex: YES
[20:32:33][C][ethernet:393]: Link Speed: 100
[20:32:33][C][ethernet:227]: MDC Pin: 23
[20:32:33][C][ethernet:228]: MDIO Pin: 18
[20:32:33][C][ethernet:229]: Type: LAN8720
[20:32:33][C][ethernet:230]: PHY addr: 0
[20:32:33][C][web_server:168]: Web Server:
[20:32:33][C][web_server:169]: Address: lilygo-test.(My Domain):80
[20:32:33][C][mdns:115]: mDNS:
[20:32:33][C][mdns:116]: Hostname: lilygo-test
[20:32:33][C][ota:096]: Over-The-Air Updates:
[20:32:33][C][ota:097]: Address: lilygo-test.(My Domain):3232
[20:32:33][C][ota:100]: Using Password.
[20:32:33][C][ota:103]: OTA version: 2.
[20:32:33][C][api:139]: API Server:
[20:32:33][C][api:140]: Address: lilygo-test.(My Domain):6053
[20:32:33][C][api:142]: Using noise encryption: YES

from my computer's command line, I can properly ping "lilygo-test.(My Domain)" and it returns the proper IP address (i.e. my DNS sees and returns the IP of the board)

It seems like "OTA" just isn't functioning. What am I doing wrong (I'm a noob with esphome)?

[ssieb]

Serial flash uses the "modern" format. OTA update uses the "legacy" format.

[lschapker]

Thank you @ssieb! Once it was said, it made lots of sense. Is that documented somewhere or is it just knowledge gleaned from masisve experience ?

[ssieb]

It doesn't look like that's documented anywhere, unless it's mentioned in the download dialog (where it should be).

[victorclaessen]

I'm actually having the same problem. I already found out that I could update the device by uploading a "legacy format" file via the web interface. But the normal "ota-via-the-network-directly-from-the-esphome-addon" way doesn't work for on of these boards. It does for another (also the same lilygo POE board). Not sure what causes this.