Yes, I saw that capacitor that seems bridged, but since it was probably accidentally touched, I thought it was very difficult for it to be really bridged. Could that bridge cause everything that is happening? Thank you very much for your help, I will review that point and comment again as soon as I can.View attachment 397187
That looks bridged from here , little flux and tap it with solder iron
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only if you install them improperly
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Long flashes , short flashes ?
Blue light and yelow light is the latest FW for RP2040. Check your shorted capacitor where it says V1