For advanced users, you can flash firmware directly from the device's bootloader using an SD card.
Firmware updates can sometimes trigger a factory reset. Back up your photos, contacts, and messages. Firmware Change Update on HTC One X9
Before attempting any firmware modification, ensure your device is prepared to prevent data loss or hardware failure. For advanced users, you can flash firmware directly
Download the correct RUU executable (.exe) for your specific region and carrier version of the HTC One X9. For advanced users
If an update is available, follow the on-screen prompts to .
If the phone is functional, enable USB Debugging in Developer Options.