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 ~upd~ -

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

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

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.

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 happens if you try to flash an

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

Your HTC EVO 3D should be charged to at least 70% . This often indicates the bootloader is unlocked

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

Put the device into Fastboot mode . (Power off, then hold Volume Down + Power . Once in the bootloader menu, select "FASTBOOT" using the power button).

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 .