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

If you are rooted or have an unlocked bootloader via HTCDev, you must relock it using the command fastboot oem lock before the RUU will run successfully.

In plain English:

Sometimes custom ROMs require the newest foundational firmware to function. Flashing an official RUU updates critical, low-level architecture partitions (like the Bootloader and Radio) that regular Android ZIP files cannot touch safely. Step-by-Step Installation Prerequisites If you are rooted or have an unlocked

Before attempting to use any RUU, understanding compatibility is the most important step. If you are rooted or have an unlocked