Later firmware revisions include improved battery charging algorithms. Users on XDA forums reported that updating to the final 2018 firmware reduced overheating while gaming (e.g., Asphalt 8) and extended standby time by 15–20%.
For advanced users, you can flash firmware directly from the device's bootloader using an SD card. Firmware Change Update on HTC One X9
If an update is available, a notification will appear in the status bar. Once downloaded, the user is prompted to Install now If an update is available, a notification will
A firmware change update is riskier than a standard app update. If interrupted, you can your HTC One X9 (turn it into an expensive paperweight). Follow these precautions: Follow these precautions: Launch the RUU file on
Launch the RUU file on your PC as an Administrator and follow the installation wizard.
Even if you flash a brand-new Android 10 custom ROM on your X9, outdated firmware can cause Wi-Fi drops, audio distortion, or battery drain.