I'm using Lumia 630 mobile �� before I many time update in to windows 10 after some time bugs problem I return to windows 8.1... My mobile have 512 ram can I update windows 10 if any problem came and now I update which window 10 update my mobile get plz give suggestions.... And advice
to begin with your phone is unsupported for the windows 10 upgrade , next Microsoft has blocked unsupported devices like yours to get windows 10 through windows insiders so i am sorry to announce that you can not participate and install windows 10 even through insiders.
If oyu want to experience the incredible windows 10 buy a device running windows 10 out o the box namely lumia 550 , 650 , 950 or 950XL.