Hey I have little problem because when I plug cabel to (0-12), the program does not work but if I plug to 13 pin work, I have to buy new arduino or I can fix it ?(I have arduino uno)

I have a problem with pins

despacitoabiuzer August 23, 2021, 8:20pm 11

I using resistors and I know 13 is the on-board LED

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