Thanks for the answer, but I still have a question: The easy part would be if I needed the pin as inputs, so I suppose I should only take care about situation you explained. But if one of then would be an output, that will make things difficult, because I suppose the internal program of the ESP-PICO...

Yes, I know I should not use GPIO9 and GPIO10 in ESP-PICO-V3-02. The problem is I have a batch of new boards that the manufacturer thought the V3-02 is equal the V3 and solder it on ALL boards. Is it posible to deactivate the PSRAM so I can use both pins like it was on the V3? I know It will probabl...