Odin Fail(auth) error topic

Hi,
I'm trying to flash the new lollipop rom which I've downloaded from sammobile. However, Odin keeps on giving me this error:

<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> N9005XXUGBOA5_N9005VFGGBOA2_N9005XXUGBOA1_HOME.tar .md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/007> Added!!
<ID:0/007> Odin v.3 engine (ID:7)..
<ID:0/007> File analysis..
<ID:0/007> SetupConnection..
<ID:0/007> Initialzation..
<ID:0/007> Get PIT for mapping..
<ID:0/007> Firmware update start..
<ID:0/007> aboot.mbn
<ID:0/007> NAND Write Start!!
<ID:0/007> FAIL! (Auth)
<OSM> All threads completed. (succeed 0 / failed 1)


Can someone please help me with this?

Thanks :)