How to Fix 'PXE-E61: Media Test Failure, Check Cable' Error
Fix Checking Media Fail Error on a Laptops - BlogTechTips
SOLVED: Checking Media when Booting - Lenovo Laptop - iFixit
Effectively Solved: Default Boot Device Missing or Boot Failed
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
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How To Fix Checking Media Fail || laptop not booting, default boot device missing or boot failed - YouTube
Default Boot Device Missing or Boot Failed" Error - Windows 8 & 10 - Lenovo Support US
EFI Network 0 for IPv4/IPv6 Boot Failed On Lenovo[SOLVED]
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Best Solutions to “PXE-E61: Media Test Failure, Check Cable”