• Wow, what a unfriendly clone!

    Do you another untouched board? If yes connect via serial and press reset to figure out how it was flashed.

    ?nd boot version : 1.?
      SPI Speed      : ?
      SPI Mode       : ?
      SPI Flash Size & Map: ?
    jump to run user1 @ 1000

    Use this information to tame it .

    Start with erase_flash and than with write_flash.


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