I activated the lockbit of a nano using avrdude in the command line mode. Then when I try to upload my new sketch, it seems not connected. I expect the uploading action in the arduino ide will reset every fuse include the lockbits and overwrite the content except for the bootloader, right? Because the lockbit fuse just prevent people from reading the code without eareasing the flash.
If the regular serial port can't reset the lockbit, will the isp do? Or do I have to buy some tool to write to the chip directly?