So, I’ve seen a lot of post about new or existing deck (mostly new) not powering on or charging. The solution that works most of the time is a cmos reset. This resets the bios to stock configuration and can fix decks that wont power on.
Here is how to do it
Make sure the deck is fully off (no lights/fan noise)
Press and hold vol down + three dots button and turn it on
Keep holding the vol down + three dots button for about a minute. The charging LED should start flashing
Wait for a few minutes and, hopefully, the deck will boot right up
Happy gaming!
Had the same issue, this worked for me as well, Thank You so much!