Click through the warning prompts to initiate the environment check.
Press and hold the and Power buttons simultaneously until the bootloader screen appears.
One of the most common uses for an RUU is to "unbrick" a phone that has become stuck in a boot loop or is otherwise malfunctioning. By re-flashing the complete factory image, you can often bring a device back from the brink.
: This is the most important step. Running an RUU will erase everything on the phone. Use HTC Sync Manager, Google Photos, or manual file transfer to move your contacts, photos, and documents to the cloud or your computer. htc android phone rom update utility
: Replaces the entire operating system with the stock version.
Scenario: A user flashes an incorrect kernel and the HTC One M7 shows only the green HTC logo and then reboots forever.
Installs older firmware versions (requires an unlocked bootloader or S-OFF status). Prerequisites Before Using RUU Click through the warning prompts to initiate the
A critical tool for fixing "bootloops" or devices stuck on the startup screen. Version Updates:
HTC released its firmware updates in two primary formats, and it is helpful to know the difference:
Since HTC no longer produces smartphones (its last major release was the Desire 22 Pro in 2022), the official RUU utility is effectively discontinued. However, for HTC fans running Android 5.0 (Lollipop) through Android 8.0 (Oreo), alternatives exist: By re-flashing the complete factory image, you can
: Recovers a device that fails to boot into the Android OS due to software corruption. Manual Updates
It's crucial to distinguish an RUU from an OTA update. An OTA (Over-The-Air) is a small, incremental update delivered directly to your phone that patches only the changed parts of the system. In contrast, the RUU is a full device "dump" that requires a computer to install and wipes all user data in the process. Think of the OTA as a small patch to a software program, while the RUU is a complete reinstallation of the entire operating system.
While OTA updates are convenient, they only patch or change small parts of the operating system. The RUU provides a more stable and complete installation approach, often fixing issues that OTA updates cannot address.