Pls use POHD to format yr hdd than this message will not appear again. It is bcoz POHD will create another partition for the BT purpose.

it is strange if you had formatted built in hdd with pohd. formatting it with pc will cause more problems.
if hdd is not readable at pc, possible the hdd is faulty, corrupted?

all firmwares are available at:
http://www.acryan.com/support/
just need to get the right ones and do it according to instructions in the pdf files.
for pohd, i do not know if there is a faster way, but i had reinstalled in this sequence, works fine:
3582->4824->3966->5440
if 5440 is a problem, then stop at 3966 or 4824.

Sure, just do:
3582->4824
you need to apply the "flash" procedure - it's in the pdf files found together with with the img file.
if you have the same problem after going back to 4824, something may be wrong with the hdd.