No power EXCEPT for flashing front LED

[Nitemare]

Hi all,
My Ultimo 4K has stopped powering on properly?

The receiver is getting power but the front LED white circle is the ONLY thing that shows? I can gear a rapid clicking noise from the main board that seems to correspond with the rapid flasing of the LED?

Any ideas or is my receiver a "brick"?

Thanks.

 

[blu8]

If you're lucky, the power supply is damaged. If you're unlucky, the motherboard might be damaged. If you insert a FAT32 USB stick with the operating system and turn the box back on, what happens?
Hdd is Okay?