Ruu-shooter-u-ics-35-s-htc-asia-tw-3.28.709.3-radio-11.77.3504.00u-11.25.3504.06-m-release-270747-signed.exe

Running an RUU will completely wipe all data on your phone, including apps, texts, and internal storage. Flashing Procedure

Connect your phone to your PC via a high-quality USB cable.

Manually installing a system update when the Over-the-Air (OTA) method fails. Installation Prerequisites Running an RUU will completely wipe all data

Before running this RUU, ensure the following conditions are met to avoid permanent damage to your device:

For RUUs to install successfully on many HTC devices, the bootloader usually needs to be locked or relocked if it was previously unlocked via HTCDev . Do not disconnect the cable during this process

The utility will verify your current software version and device ID (CID). If compatible, click "Update" and wait for the progress bar to finish. Do not disconnect the cable during this process. Common Troubleshooting

This happens if you try to flash an RUU from the wrong region (e.g., trying to flash the Taiwan RUU on a European device). You may need to change your CID to HTC__621 or have S-OFF (Security Off) status to bypass this. What is an HTC RUU?

Right-click the .exe file on your Windows PC and select "Run as Administrator" .

An RUU (ROM Upgrade Utility) is a Windows-based executable used to flash official firmware to HTC devices. It is a critical tool for:

This specific file allows users to restore their device to a factory state or upgrade it to with HTC Sense 3.6 . Key Technical Details Device Codename: SHOOTER-U (GSM version of the EVO 3D). Operating System: Android 4.0.3 Ice Cream Sandwich. Software Version: 3.28.709.3. Region: hTC Asia TW (Taiwan). Radio Version: 11.77.3504.00U_11.25.3504.06-M. Release Type: Official signed release (release-270747). What is an HTC RUU?