Update your phone software
No computer needed – update your phone software wirelessly for new features and improved
Before starting the update, make sure your phone has enough battery power.
Using services or downloading content may cause the transfer of large amounts of data, which may
result in data costs.
By default, your phone automatically downloads available updates whenever the data connection
settings, for example roaming, allow it. When your phone notifies you that an update is available, just
follow the instructions shown on your phone.
Tip: Check Store for app updates.
Switch off automatic update downloading
If you want to keep tight control of your data costs while roaming, you can switch off automatic
update downloading. On the start screen, swipe left, tap Settings > phone update, and clear the
Automatically download updates if my data settings allow it check box.