Firmware upgrade failure?

Hi,

I tried to upgrade the firmware of my MBworld 500 GB drive using the web interface. When the upgrade was in progress I lost the connection with the drive (understandable). But now, after 2,5 hours, I still don't have a connection with the drive. Instead, the outer blue light and parts of the inner circle blue light dims every 10-30 seconds. Is the upgrade still in progress, or is there an upgrade failure going on.
I own this drive now for about 3 years, and never upgraded the firmware before. How much time should it take before a firmware upgrade normally completes?

Best regards,
John

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