My Book World: Disk OK, Kit defectiv

WD Legacy Products Other Network Drives
1

After a vacation I switched on my My Book World 1TB and everything looks familiar: the net led blinks and the front led illuminated a bit, because I switched it off by configuration.

But the Book is not reachable by net and is not pingable. I even cannot see it in my router.

I opened it and I can see a GPT partition, but I cannot access the data on it.

The device is not jet 2 years old, can the kit been repaired and I can reinstall the disk?

Or, if I lost my warranty by opening the box, can I buy a used one to install my disk in there?

Thanks for an answer. I will have lost only 300GB. Who cares?

2

Yup warranty is gone

the drive should not be formatted as GPT so make sure you do have the MBW 

repairing  the kit is not an option AFAIK 

3

I booted Ubuntu on one of my notebooks and have connected the disk via USB adapter.

I can see several partitions and a big one named linux_raid_system.

So there will be no chance getting this data back?

Not even by buying a used My Book World and replacing the disk with mine?

Is there a way to use data recovery tools like ParitionGuru or Ontrack Recovery Home?