Firmware Change Update On Htc One X9

, firmware can be updated using a microSD card and a computer:

If your phone is stuck in a boot loop or you need to restore it to its factory state, you can manually flash the firmware using RUU (ROM Upgrade Utility) What You’ll Need: HTC Drivers : Essential for your PC to recognize your phone. ADB and Fastboot Tools : To communicate with your device via command line. The Correct Firmware : You must match your device's Model ID (MID) CID (Country ID) Firmware Change Update on HTC One X9

Manual firmware flashing is required when repairing a device or changing firmware versions that are not available via OTA. 3.1 Prerequisite Identification , firmware can be updated using a microSD

where you can safely download the HTC One X9 stock firmware files? HTC One X9 - Updating your phone's software Firmware Change Update on HTC One X9

Once the download is complete, select and tap OK . The device will reboot to apply the update.