interface that guides the user through the installation process. How it Works Preparation: The phone is typically placed into Fastboot/Download Mode and connected to a PC. Verification: The utility checks the device’s CID (Carrier ID) MID (Model ID)
Complete Guide to the HTC Android Phone ROM Update Utility (RUU) htc android phone rom update utility
Replaces critical partitions, including System , Boot , and Recovery , and may also update the radio image. interface that guides the user through the installation