Hello Update to this Lock fuse is 0x0F Low Fuse = 0xFF High Fuse =0xDC Extended Fuse =0xFD Sp for a ATMega644P it looks like the Lock fuse is in Protection Mode 3. Should I change it to 0xFF? Or would a chip reset fix the fuses? In summary I'm getting a file verification error after the IDE …

Verification Error after upload

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