I have a dual-boot with Windows 10 and Manjaro KDE, in my laptop (Lenovo Yoga 530-14IKB). I just updated the BIOS (as recommended) from Windows.
But when restarting my computer, I couldn't acces to the GRUB, which allowed me to launch Manjaro and Windows. Now I just can access to Windows, and I really need to recover my Linux!
I have tried to do this: https://wiki.manjaro.org/index.php?title=GRUB/Restore_the_GRUB_Bootloader. But I can't install mtools: I don't have the error right now because I'm using Windows, but if you think that the problem could be fixed with mtools installed, I can use one more time my boot key and show you the error. I restarted my computer to test if started with the GRUB after having followed everything (except for mtools), and it started with windows.
I can add that I don't se the grub in the bios order of apparition. I can also choose in the BIOS bitween legacy and uefi, I enabled legacy.
If someone has already experimented this kind of problem, or if someone knows how to acces to the GRUB, it would be a pleasure to discuss!
Thank you very much!