New T-Deck cannot enter DFU nor gets detected by any computer as USB

[SAMGARTNER]

Hello, I bought this T-Deck directly at lilygo.cc. I receive it yesterday, I have been trying to flash it but it doesn't respond. There is only a bluelight in the rear and it blinks once when I turn the unit on. I changed cables and used two computer a Macbook and a Windows laptop, none of them detects the USB connection.

As instructed, I keep pressing the scroll wheel button and turn on the unit and then release the button. I also mixed it with the reset button, but nothing happens. Looks bricked

Is there any other procedure that I should follow?