KiMax BS-U35WF - using Windows Only

Bought this thing few weeks ago. Since then cannot get it working. Thought the problem is with the item and meantime bought another piece. Same result
Two different PCs do not detect the box via USB at all. Via ethernet cable I can see the drive, can see the the size (500GB) but cannot do any changes within folders because of permissions. I cannot change those permissions either.
Please help

if anybody needs KIMAX -H1 BS-U35WF 1.7.5 firmware version and apks, download from here: https://drive.google.com/open?id=1bFIQ-8fi_BmAtEYSajKmjVED74BTrOVu

i installed the firmware KIMAX -H1 BS-U35WF 1.7.5 firmware version successfully from the above link however the usual passwords to login no longer work. do u have any ideas on what the default password is for that firmware?