TRACK 0... DONE.
If you are staring at a blinking LCD screen showing "501" or a terminal output mentioning "USB LowLevel Format failure," you are not alone. This article will dissect exactly what this code means, why it appears, and—most importantly—how to resolve it step-by-step. usb lowlevel format 501 upgrade code
sudo dd if=/dev/zero of=/dev/sdX bs=4M status=progress conv=fsync TRACK 0