12-13-2016 07:26 AM
I think you need to have a sim card and a service contract to get your phone software upgraded.
It is the carrier that pushes the updates out to the phone.
12-13-2016 09:02 AM
12-13-2016 09:14 AM
The updates are pushed by the carrier not by to os developer and not by the phone manufacturer.
The networks looks for the the IMEI (International Mobile Equiptment Identity) which is part of the Simm Card
For those in the USA, if you have a friend that has AT&T service, put their SIM card in the phone and it will update. However not an option for you. But it may or may not work internationally.