So glad it worked for you. Hope it passes all the other tests. I went straight from this to the buttons tests. OLED test and pixel check. Thankfully mine was a 100% good. Having a lot of fun with it. Hope you do too.

Try this. Maybe it will work. Good luck.

https://www.reddit.com/r/SteamDeck/s/Q4ihI5Kcv1

I did try everything I could find via Google before attempting the power disconnect. I didn’t add that but holding volume up + power. These two buttons or the power alone for 15 sec didn’t help me but it might others. It would be a good and easy thing to try first. Thanks.

My deck came to me exactly like this today. I feared the worst but due to having been in my LCD I wasn’t afraid to try disconnecting and reconnecting the power as a test before contacting Valve. Try this.

• Open the deck like you are going to replace the SSD.
• Disconnect the battery cable like you would when replacing the SSD. While the cable is out hold the power button for 7 sec - idk why I did this but maybe it will help further drain the power of it had any. * You might have to use a tool or tweezers if the power cable isn’t coming out easy. * Be careful with that back plate and the ribbon.
• Once you have that done put it all back together - DO NOT attempt a test with anything not back how it was.
• Plug it in and wait a few minutes. You should note the power button now works and maybe you will now hear a sound. You can then test powering it on.
• if any of this fails contact support. But it worked for me and I have been playing all day. Since I had it all appart I moved my 2TB drive over. I also noted it asked for a new firmware update for the official dock that it didn’t ask for on my LCD. Could be OLED specific.

Good luck!!