Unbrick then Firmware Upgrade Equals No Dashboard

I solved the problem with the following steps:

Download the right virgin image to your computer and don’t use for example 250GB image when you have a 3TB device. I have downloaded the image from this thread:

Follow steps 1 - 7 from the following guide:

Then do the the steps explained by cnlinya:

Put your hard drive back in mini board and do a quick factory reset.

Now your volume should show the right space and you will be able to update to the last firmware update.

Good luck everyone :+1: