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Topic: Cannot upload to low cost Uno clone with CH340 (Read 331 times) previous topic - next topic


Port shows in IDE but upload (Blink!) fails after 10 attempts.

Clones from other Chinese sources using CH340 (v1.4) work OK.
Any suggestions pls.


What does the small chip near the USB port look like and what does it say on it ?

Could be you need the CP2102 driver ?

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google (who would have thunk it ! ) or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.


You could try doing a Tools > Burn Bootloader to the problematic clone. If you don't own a dedicated ISP programmer then you can use one of the working clones as an "Arduino as ISP":

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