Follow their instructions to fetch your device's unique Identifier Token using the fastboot command: fastboot oem get_identifier_token
Go back to the main TWRP screen, tap , select your custom ROM zip file, and swipe to flash.
Developers constantly patch known glitches and app crashes. Firmware Change Update on HTC One X9
Copy the file to the root directory of your external MicroSD card.
Return to the main Settings menu, open , and toggle on USB Debugging and OEM Unlocking . Step-by-Step Guide to Changing Firmware Follow their instructions to fetch your device's unique
Make sure you have at least 1GB to 2GB of free internal storage for the update file to download and extract. 📲 How to Update Your HTC One X9 (Over-The-Air)
Visit the official website and create a free developer account. Return to the main Settings menu, open ,
Click the green arrow button at the top of the SP Flash Tool interface. The tool will now wait for the device to connect. Power off your HTC One X9 completely.
Wireless system updates sent directly by HTC or carriers.