Lenovo-Diagnosetool – hier ist die vollständige Anleitung
Lenovo on Twitter: "@YazanKhasib Hi there! Thanks for contacting us. Sorry to hear that. We'll check it out. Could you please open Lenovo Vantage software then run Customer test scan? We'll wait
How to Update a Lenovo Laptop
Lenovo Warranty Check/Lookup on Lenovo Devices (Focus on Laptop)
How to check your product or model specification in the manual - Lenovo Support US
Lenovo Vantage: Die Verwendung Ihres PC ist jetzt noch einfacher - Lenovo Support JP
How to find a Lenovo serial number and warranty information