Android 4.0.4 was released on April 3rd and comes as a minor update that improves screen rotation, which is now more fluid and faster, while accelerating the camera application for a smoother use. Also, multi-tasking animations are faster and more fluid than on previous versions.

Recently it has been reported by a number of Google Nexus users who recently got their devices updated to the latest ICS version from 4.0.3 to 4.0.4  that they are now facing connectivity issues along with loss in signals when the phone is in sleep/screen off mode resulting in the loss of missed calls notifications, texts, push notifications etc all of which that get affected due to the loss in signals. One important thing to be noted here is that this issue only seems to be with the GSM versions of the device so for all those who have the CDMA version of the Google Nexus do not have to worry about it.

Google has acknowledged the issue and is asking its users to submit bug reports to help with developing a solution. In the meantime, rooted users can either clock their CPU’s minimum clock speed to 700MHz to help alleviate the issue or simply revert back to Android 4.0.2 (which for me currently is the best solution). Decreasing the clock speed is not recommended though, as the battery consumption rate increases proportionally with the CPU activity.

The signal loss can be experienced only on the Galaxy Nexus, other devices that lack 4G support like the Nexus S and the Motorola XOOM, being safe for the moment. Google officials are aware of the problem and are working on a patch, we will keep you guys updated on this issue till it gets fully fixed.

Source: IT Portal