[q] help htc one dual sim update topic

Hi,

I just bought HTC ONE Dual Sim. I didn't know that you cannot update the software prior to buying it. :(
I stuck with it. Is there a way to update the phone. I just an ordinary girl. I don't really understand the technical part.
Is there a video how to do it? Is there hope on updating my phone to 4.2.2?

Thanks

Olive

Attached Thumbnails