Hd500x Does Not Start / Boot Anymore in POD HD Posted December 23, 2019 My Line 6 HD500X is not starting after I switch on the power. Line 6 Logo appears, stays for some seconds, the logo change to a big blue block and then fades away. Line 6 Logo appears again. This keeps happening in a loop. This happened while I was downloading tones from my laptop. How can I reset the HD500x?