This system update includes:
Microsoft Windows Phone 8.1 Software Update
This update will be sent to the device over the air. Once the software is ready, users will receive a notification on their device advising them of this update and provide instructions to receive and install it. Users can also proactively check for this update by swiping left to display the applications list and then going to
heck for updates
WARNING: During the upgrade process the device will reboot multiple times and show software upgrade screens. Do not power the device off as this will stop the update and your device may be rendered inoperable!
Before you proceed with the update, make sure you have done the following:
Set aside approximately 20 minutes to allow the device to update, possibly longer based on Wi-Fi network speed.
Connect the device to a charger.
Ensure the battery is charged to at least 30%.
Connect to a stable Wi-Fi network to download the software file.
HTC recommends that software updates are checked for automatically. To verify that this setting is correct, navigate to
and ensure that the following are checked:
Tell me when updates are available for my phone
Automatically download updates if my data settings allow it
Note: Software updates may take up to 20 minutes to complete. Your device may reboot multiple times during this process. Please do not shut off, restart or otherwise interrupt this process. Connecting to Wi-Fi or ensuring you have a strong data signal can make this process faster.
Manually check for updates
First, check your current software version by navigating to
settings > about> more info
If on firmware revision number lower than
update your device by navigating to
settings > phone update > check for updates.
This will update your device to firmware revision number