Ubox won't turn on after 2 days

Hello,
my uBox serial SUbox0IZ2H241003191 purchased on Aliexpress does not turn on anymore after 2 days of normal operation office use and now black screen, power led is on and no noise from fan.
I tried to press the reset button on the front but nothing black screen no noise from the fan.

I have already opened the return procedure on Aliexpress but I wanted to know if there was a trick to make it turn on again.

I have had other products of yours for years (2 Tablets and 2 notebooks) and have never had any problems except that the battery ran out.

I am very unhappy to see this problem now after two days.

Sorry for the late response

If you just bought it please return it.

IF not fill this so we can repair