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  • Are you using esptool to flash? Maybe do "erase_flash" first. This will clear any saved javascript code. I understand that sometimes addresses of stuff change between builds so you can't guarantee that previously saved code will run. Wiping the board entirely with erase_flash usually sorts problems like this.

  • Hi Ollie,

    thanks for your advise. It seems i got some ESP8266 Modules from AliExpress with less then 4MB. I have some modules with 4MB and it works fine.

    How can i erase the flash ? I just started to work with espurino and esptools.


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