: Running an RUU will completely wipe all internal storage, messages, contacts, and personal data . Back up everything to your Google Account, Microsoft My Phone, or an external storage card.
A reliable USB-A to Mini-USB cable connected directly to the motherboard ports (avoid USB hubs). Supported HTC Devices
A progress bar spanning from 0% to 100% will appear on both your PC screen and the phone screen.
The ROM Update Utility (RUU) is a Windows-based application designed to bridge your PC and your HTC device to perform deep-level software updates. While newer devices often rely on over-the-air (FOTA) updates, the RUU remains the gold standard for manual firmware installation , factory resets, and "unbricking" devices that no longer boot correctly. Htc Pda Phone Rom Update Utility 3.27.4.3 Free Download
Wipes the device clean and restores it to its original out-of-the-box state.
Ensure ROMUpdateUtility.exe and ruu_signed.nbh are located in the exact same folder before launching the program. Error 260: Connection Error Cause: The utility lost communication with the device.
Using the RUU is a straightforward process, but care must be taken. The utility is designed to run on a . Below is a step-by-step guide, supplemented with official HTC instructions and user experiences from the community. : Running an RUU will completely wipe all
Updating the internal radio ROM to improve cellular reception, Wi-Fi stability, and battery life. Compatibility and Supported Devices
While HTC released dozens of RUU versions (e.g., 2.0.1, 3.14.x.x, 5.x.x.x), version holds a special place for several reasons:
: Third-party download sites may package these utilities with unwanted software. Official instructions often recommend disabling antivirus software Supported HTC Devices A progress bar spanning from
Flashing a ROM will wipe all user data. Back up your contacts and files first.
: If your device has an unlocked bootloader via HTCdev, the RUU may reject the installation. You must open a command prompt and run fastboot oem lock before executing the tool.
use your PC for other heavy tasks while the progress bar moves from 0% to 100%. The process typically takes 5 to 10 minutes. Step 6: Complete and Reboot