Can't flash esp32 - boot button not working

[usernametoolong]

Hi all!

I'm having a problem with an esp32 that shows up on /dev/ttyUSB0

I have some code in Platform.io that works with some other esp32 devices and I wanted to flash this devices with the same code.
Unfortunately it refuses.
Now I just tried erasing the flash completely and I get this result:

Code: Select all

esptool.py erase_flash                                                                                                                                                               ─╯
esptool.py v4.1
Found 1 serial ports
Serial port /dev/ttyUSB0
Connecting......................................
/dev/ttyUSB0 failed to connect: Failed to connect to Espressif device: No serial data received.
For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html

A fatal error occurred: Could not connect to an Espressif device on any of the 1 available serial ports.

When it says connecting I hold down the boot button until the end but nothing happens.
This is the device I'm using:


I've also tried pressing the EN button and then boot - but that also doesn't work.

Any help is appreciated.
Thanks!

[ESP_Sprite]

As a last resort - while it is connecting, can you hold the 'boot' and press 'en' shortly?