boot - Lenovo Legion PXI-E61 Media Test Failure, Check Cable. Exiting PXE ROM. Then restarts and works fine - Ask Ubuntu
Solved EFI network 0 for IPv4 boot fail on idea pad Lenovo - YouTube
Problem-with-my-Lenovo-Legion-5i-say-EFI-PXE-for-IPv4-90-2E-16-CF-38-FD-boot -failed-also-IPv6 - English Community - LENOVO COMMUNITY
The Lenovo G50‑80 boot failed. It's showing 'EFI network 0 for ipv4 and IPv6. Boot failed'. Is the hard disk damaged, or can I use it externally? - Quora
EFI Network 0 for IPv4 Boot failed 100% Working | Lenovo - YouTube