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 -

The keyword refers to an official ROM Upgrade Utility (RUU) for the HTC EVO 3D (GSM) , specifically designed for the Taiwan (Asia-TW) region.

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?

Before running this RUU, ensure the following conditions are met to avoid permanent damage to your device: The keyword refers to an official ROM Upgrade

Fixing a device that is stuck in a boot loop or won't start.

Install the latest HTC USB Drivers or HTC Sync so your PC can recognize the phone in Fastboot mode. Operating System: Android 4

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 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. Radio Version: 11

This often indicates the bootloader is unlocked. Use the command fastboot oem lock in the ADB terminal to relock it before trying again.