HELP update For Lumia 820 RM-825 with product code 059P7P2.

[Darren Mozo]

I got a Lumia 820 RM-825 with product code 059P7P2.
I never received any updates. Until now it has same firmware, OS version.
I really want to update this but via FOTA (it always says it's upto date)
And when I connect to Nokia Software Recovery tool. it says, it is not supported or no available....

Please help me.