Suddenly cannot flash NodeMCU ESP8266

[compizfox]

@maxgerhardt

Hm, given that you tested new boards it’s unlikely that those have a hardware fault, so it points more to the software side.

One of the boards is new. The other one isn’t, but I have personally used (and flashed) it before without issues back then.

This is the specific board: 1.21€ |Wireless Modul CH340/CP2102/CH9102X NodeMcu V3 V2 Lua WIFI Internet der Dinge Entwicklung Board Basierend ESP8266 ESP 12E|nodemcu v3|lua wifiwireless module - AliExpress
(V3 Nodemcu-CH340)

@maxgerhardt

In the off-chance that Debian 11 also has the same bug, can you test something older like Ubuntu 18.04?

I just tried with Ubuntu 20.04.3 LTS (that should be more than old enough) (linux 5.4.0-81), and still the same results.

Is it possible that I just got the wrong baud rate? I tried a couple of others (9600, 115200), but haven’t been able to get anything other than garbled output from it.