mobile

So my Note 3 (europe) is unlocked and I downloaded the file from sammobile (N9005XXUGBOB6_N9005H3GGBOB1_N9005XXUGBOA2_HOME) but when I tried to flash it with Odin (I tried both 3.09 and 3.10 v.) when it's just about to finish it reads:

<ID:0/004> hidden.img.ext4
<ID:0/004> FAIL! (Size)
<ID:0/004>
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)

And now I'm stuck at this screen which says that I need to connect my phone to Kies to enter recovery mode, which I've also tried, however Kies does not recognize my phone at this point.

I really don't know what to do, I've read a few topics here and there and some of them suggested I should flash with both the md5 and the pit file. I'm not sure if I should do this because I've also read that I could hard-brick my phone...

Anyway, I would really appreciate if anyone could tell me what to do now and if there's a way to return to 4.4.2 or, ultimately, to update to 5.0.

Thanks!