I wouldn't open the Steam Deck and void the warranty. I decided to just keep my Steam Deck so I opened it and logged into to Steam to let it update. After that I was going to install some games on it, but before I could even do that the SD turned off and now I can't turn it back on. I submitted a support ticket to Valve but they only gave me the boilerplate plug and unplug and try a different charger reply. I told them I tried all that, and no reply since then. From my search it seems like Steam Deck dying is kind of common for the amount of devices shipped so far. I wouldn't recommend getting a Steam Deck for now, maybe wait for a few more batches or their first revision.