ikr he got it from a friend and is convinced the update can be done (he's 10) I told him I'd look into it for him.. Is it at all possible to update it at all??He's a tech enthusiast at that age? great kid
I checked the specs and I see that it's a wp8 phone, which should be upgrade-able to 8.1. From there, go through all the mandatory updates. If you want the phone on 10, it should first have the Cyan update. If you aren't getting the update normally, I would suggest downloading the preview for developers app and using that to download the cyan update. After that's been done, look for the windows insider app and select the production ring so you can get to the latest (safest) build..
Idk if all of this will work on your phone, but I guess it's worth a shot