HTC One X owners, remember this number: 1.28.401.9. All right, you don't actually have to memorize the thing, you just have to go into the Software Updates section of your phone's settings to grab the decimal-happy upgrade for your beloved new smartphone. According to Android Central, the Android 4.0.3-based upgrade brings some "minor changes" to the smartphone, addressing some menu key and brightness issues among others. A battery life fix is also supposedly on-board for the upgrade. Let us know what other fixes you're seeing, should you take the upgrade plunge.