This is the original Stock RUU (Rom Update Utility) for HTC One X LTE branded versions released in AT&T USA, Rogers Canada and all other international version of HTC One X with built in LTE capability. To avoid any confusion the HTC One X LTE and the international version without LTE uses a different firmware build. They run with different firmware because of the different hardware specifications – SoC (Qualcomm S4 Krait dual core processor vs. Tegra3 Quad core processor). They might look identical, but a lot difference in firmware, for international version of HTC One X codenamed as Endeavor and the HTC One X LTE codenamed as Evita. The official model names are the HTC One X S720e for the international version and HTC One X X325e for the LTE.
I have posted the Endeavor Stock RUU here for all HTC One X (international) non-LTE version users, to avoid any confusion. The list below are consists of HTC One X LTE AT&T/Rogers and the (international with LTE) version RUU’s.
Note: this list maybe outdated and may we have no time to update, just check on link below for more newest RUU builds.
HTC One X LTE: Evita Stock RUU Download
AT&T HTC One X LTE RUU
Rogers HTC One X LTE RUU
HTC One X LTE Asia
How to flash or install the stock RUU?
Flashing the Stock RUU is your last resort if you somehow messed up your device or screwed up while flashing any zip.file and want to recover from – like dead-boot jammed, bootloops and softbricks.
Follow this instruction here at XDA-Developer, to learn more about using the stock RUU properly.