How well do you remember the last time we informed you about the start of the process of the firmware update to Android 4.0.4 Ice Cream Sandwich for the weakest model of the family NXT – Xperia U. At the moment there is no information that in Poland, the process has already started, therefore remains to wait or to update manually as I did it myself. [Gallery] Due to the fact that the software build number 6.1.1.B.1.10 is already available in France are men of users decided to share it with the community, which has a model of the Xperia U ST25i. Software package weighs less than 340 MB, and the installation process is done through software FlashTool and suddenly limited to 3 clicks the left mouse button. After several minutes of waiting, and information about the process and his wife enjoyed a successful case turned on the smartphone market, which has shown us the configuration wizard. But going to the merits of the case, what can we expect from Android 4.0 on Xperia U? What most annoys the renovation is to provide more battery life at the expense of reducing the CPU clock frequency of 1 GHz to 800 MHz, which, unfortunately, but it translates into the overall operation of the system and performance. Of course with the right treatment it is possible to overclock the CPU to its original state, but it will affect a greater demand on the battery. And so the circle closed – either performance or long working hours. There are, however, advantages and novelty of which you should be happy. First, the changes went through grid applications, updated music player app album, modified notification bar, context menu. Movies come and navigation application – Wisepilot for Xperia – and productivity assistant that allows you to disable system applications, which reduce its efficiency (by phone). Of course, there is the possibility of their re-inclusion.