Amandla aphezulu i-U-bolt, ekwabizwa ngokuba namandla aphezulu e-U-khadi. Ibholiti esetyenziswa rhoqo kufakelo lombhobho ukulungisa imibhobho. Le bolt imile okwe-U-imilo. Isetyenziselwa ukudibanisa ii-firmware ezimbini. Kukho 4.8, 8.8, 10.9 kunye no-12.9 kumabanga. Ngokubanzi, amandla aphezulu angaphezulu kwe-8.8 kwibakala, ebonakaliswa ngamandla anzima kunye namandla okutsala anamandla. Umbala omnyama, umphezulu ogudileyo.