ATmega 1284 chips turned out to be fake. It's a good thing I immediately put it in the programmer. Fusion doctor didn't help either. And as it turns out, the pins are completely different from the tester, unlike the original. Quickly combed the video, especially without hoping for luck in the dispute. We need to pay tribute to the service of AliExpress, they resolved the dispute in my favor within 24 hours. This is the second time I have such a caress with controllers.