Sometimes the EXE crashes or gives a “USB Error 170.” You can manually extract and flash the rom.zip .
The is an official Windows-based software application developed by HTC. Its primary purpose is to flash official stock firmware directly onto HTC Android smartphones.
Ensure your HTC phone has at least 50% battery life (ideally 70%+). If the phone dies mid-flash, it may become permanently unrecoverable.
Once the progress bar fills up, follow the on-screen prompt to reboot your device. Common RUU Errors and How to Fix Them htc android phone rom update utility
The RUU was not merely a file installer; it was a complex software suite consisting of three main components:
The phone’s bootloader will automatically scan the SD card, detect the update file, and prompt you to start the update.
If you previously unlocked your bootloader via HTCDev, standard RUUs usually require you to relock it before flashing stock firmware. Step-by-Step Guide: How to Use HTC RUU Method 1: Using the .exe RUU (Windows PC) Sometimes the EXE crashes or gives a “USB Error 170
If your device is , the phone's signature checks are disabled, allowing you to flash older RUUs, cross-flash different regional firmware, or bypass version checks entirely. Step-by-Step Guide: How to Use an HTC RUU (.exe)
Once the progress bars fill up, press the Power button to reboot the device. Troubleshooting Common RUU Errors
For official downloads and instructions for specific models, you can visit the HTC Support Updates page . Ensure your HTC phone has at least 50%
Though HTC's presence in the smartphone market has diminished, the RUU utility endures as a powerful testament to an era when phone manufacturers gave users direct access to deep system tools. For those who still own and cherish HTC Android phones, mastering the RUU is an essential skill that can extend the life and functionality of these devices for years to come.
Copy the renamed zip file directly to the root directory of the MicroSD card (do not place it inside any folders). Insert the SD card into your powered-off HTC phone.
: Often occurs if the bootloader is unlocked when it needs to be locked, or if the RUU version is older than what is currently on the phone (downgrading is restricted unless you have S-OFF).
If you are trying to recover a specific model or are facing a stubborn error code, tell me: What is your exact ? What error code or message are you seeing? Is your phone's bootloader locked or unlocked ?