HTC One M9 - Manual (Page 65)

Basic Operations 52
Confirm Your Current Phone Firmware
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Tap > > Settings > About > Software information.
The software version is displayed.
Update Your Profile
This option allows you to automatically update your online user profile information. If you choose to
change your user name and select a new one online, you must then update the user name on your
phone.
1. Tap > > Settings > System updates.
2. Tap Update profile and follow onscreen instructions.
The phone will download and install the profile update and you will see a confirmation when
complete.
Note: If your data services or account syncing ever seems to go out unexpectedly, use this feature to
reconnect with the network.
Update Your PRL
This option allows you to automatically download and update the PRL (preferred roaming list).
1. Tap > > Settings > System updates.
2. Tap Update PRL and follow onscreen instructions.
The phone will download and install the PRL update and you will see a confirmation when
complete.