Phantom Gold stops working

[Snoopy8]

Yesterday my Phantom Gold stops working. It is cold and not warm. My other Phantom Gold works just fine and I have tried use another cable, and it didn't work.

Do you think the power supple is dead or are there any tricks I should do before contacting Devialet?

Given you are still using a Dialog, I assume you are using DOS1. Try this process
Unplug Phantom from its power outlet
Wait for 30 seconds
Plug back your Phantom to the power outlet
Wait again for 30 seconds
Press 3 times on your Phantom’s back button (3 very fast short press).

Otherwise contact Devialet Support