Steam Deck OLED 512GB Purchased from the official website in November 2024. I downloaded software as needed, but I ended up playing games on my PC, and the Steam Deck went unused for a year. Immediately after purchase, I applied a skin and a protective glass. It was kept in a case with the cover on. The skin sticker was purchased from a foreign website. The protective glass is blue light cut. I will hand it over in its current condition. I was unable to proceed with a factory reset. I have deleted the downloaded software and logged out of the account. Please log in with your Steam account and use it. Security lock is not enabled. I am unable to handle technical matters related to the system, so please understand the condition before purchasing. Please ask if you have any questions. I am not offering a discount.