Problems setting up a R2 i just bought (used).

[Ziltoid Racer]

Hi guys, it's been a long time since i posted on here so hope this finds you all ok.

I bought a used Netduma R2 the otherday and i'm having real problems just running thru set up because whenever it reboots i'm back to the set up 1st page again. So i thought it maybe needed a firmware update so i got the latest one (DumaOS-R2-3.3.280.sig), i started the upgrade and then it just sits there saying "Upgrade in progress" and it just stays there constantly doing nothing i had it sat there for a few hours and nothing.

I have factory reset it quite a few times now but get the same outcome where in the end after a restart i am right back at the set up 1st page again.
If i had hair half would be gone now, i really hope i have not been sold a dud by the person i got it off.
Any help appreciated and if you need any details just ask.

Thanks

Note: Firmware on the R2 when i bought is 3.0.205 if that is any help.