HTC ROM Upgrade Utility (RUU) is the official Windows-based software used to manually update, restore, or "unbrick" HTC Android devices. It provides a foolproof way to flash stock firmware directly from a PC via a USB connection. Key Features Official Firmware Restoration:
3. Data Backup Reminder
- Before starting, the utility prompts: “This will erase all user data. Have you backed up?”
- Links to HTC Backup or Google Drive settings.
Part 1: What is the HTC Android Phone ROM Update Utility?
The HTC ROM Update Utility (RUU) is an official Windows-based executable file (.exe) distributed by HTC. Its primary function is to flash the stock firmware (ROM) onto an HTC Android device. Unlike over-the-air (OTA) updates that patch small sections of the system, the RUU performs a complete, ground-up rewrite of the device’s internal memory partitions.
Completion: The phone will reboot several times. Once the utility shows a "Finish" screen, your device is restored to stock. Method 2: The SD Card (Zip) Method