Homepod mini restoration failure and dead

Hi tech whizzes!

I recently moved to new city with my homepod mini and tried to set it up then failed.

current symptom be like : it doesn't flash any light while plugged in. I can find it on my mac tho, but every time I tried to restore either via server or manual(ipsw), it gives me 'error 3004' with not available to restore.

What I did so far is : I moved to new room, switched wifi network, homepod mini suddenly stopped and didn't respond amid switching wifi network, I tried to reset it from home app, and then again from homepod mini(hard reset), and then it ended up having like symptom written above.

It'll be very appreciated if a genius here can help me... since I'm oversee, so I can't get direct help from Apple. And homepod mini is not in the market here, so local Apple can't help me too. I really love this device, please help!