and the upgrade is done within Do-more Designer. So you don’t need to download the firmware file from here, use the LiveUpdate feature in Do-more Designer to get any missing firmware files. For Panasonic lens firmware updates, the .zip file contains a “.lin” file instead of a “.bin” file. Update process is the same with the lens in question mounted to the camera. So that’s how to extract stock boot.img file from stock firmware. You just need to have ESPHome . . .