A workaround for this problem is to install an extra copy of the EFI version of the GRUB boot loader to a fallback location, the "removable media path". Almost all EFI systems, no matter how buggy, will boot GRUB that way.
Tifrat-nniḍen i wugur-a tettezzi deg usebded n unɣal-nniḍen n lqem EFI n usalay n usenker deg yideg n usellek, d "abrid n umidyat aziraz". Tuget n yinagrawen EFI, ɣas akken llant tucḍiwin deg-sen, senkarayen GRUB s tarrayt-a.