Disclaimer: Upgrade the firmware at your own risk and we are not responsible for any kind of damages.
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Download FirmwareDetails
Before you proceed, please confirm that this software upgrade to 3.20.502.63 is a newer version than what is currently loaded on your device. If it is the same version, there is no need to reload the software. Navigate to the Home screen then tap All apps > Settings > About > Software Information and locate the Software version. If your Software number is less than 3.20.502.63, you should proceed with the upgrade.
WARNING: During the upgrade process the device will reboot multiple times and show software upgrade screens. Do not remove the AC charger as this might stop the update and your device may be rendered inoperable!
Getting Started
Before you proceed with the update, make sure you have done the following:
· Set aside approximately 20 minutes to allow the device to update
· Connect the device to a charger
· Ensure the battery is charged to at least 35%
· If available, connect to Wi-Fi or 3G/4G LTE to speed up the update download process
Installation instructions
To manually perform the update, follow these steps below:
1. From the Home screen tap All apps, tap Settings.
2. Tap AT&T software update.
3. Tap Check for updates.
4. Tap OK.
5. Tap Continueto download the update.
6. If downloading the update using the mobile data network (not connected to Wi-Fi), you may be prompted with a data fee warning message. If this is acceptable, tap YES to start the upgrade process.
7. Status of the download can be checked in the Notifications pull down.
8. Once the download is complete, the user will be prompted to install from the Notifications pull down. Tap the System update to begin the upgrade process.
9. Tap OK to begin the update process to software version 3.20.502.63.
WARNING: During the upgrade process the device will reboot multiple times and show software upgrade screens. Do not remove the AC charger as this might stop the update and your device may be rendered inoperable!
10. Device will reboot and begin installation. Users will not be able to use their device during the installation process (approximately 10 minutes).
11. The system update is complete. Tap OK to continue.
Manual system update instructions:
If you are outside of AT&T/Wi-Fi coverage, or the update is not found, you may perform a manual system update. This process requires that you download and install HTC Sync first in order to get the proper drivers. If you do not have HTC Sync installed already, you may download the software fromhttp://www.htc.com/us/support/content.aspx?id=185626.
WARNING: Performing the system update manually will delete all information from the device. Ensure all information is backed up before proceeding. See the Help & How To section of this website for more information on backing up your device contents.
Performing the ROM Update:
1. Download and save the HTC Inspire 4G™ for AT&T ROM update to your PC.
2. Connect your device to your PC via the supplied USB cable.
3. If the device is not recognized by the PC, ensure you have HTC Sync installed and then disconnect and reconnect the device from the USB cable.
4. Once the device is properly recognized on the PC, locate the HTC Inspire 4G™ for AT&T ROM Update that you downloaded. Double-click on the file to launch the system update wizard.
5. Follow all of the system update wizard instructions shown on your PC.
6. Once the update is complete, click Finish in the Wizard and the device will reboot.
7. Once the device reboots, the initial setup wizard will appear.
8. Once the initial setup process is complete, the device is ready for use.
Important: After completing the manual system update, please re-install the application security updates available here.
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