INFO :
Galaxy Nexus users may have rejoiced at the Android 4.0.4 Ice Cream Sandwich update but the GSM version users now find a pretty unwelcome bug popping its head up and diluting their joy. Users report connectivity issues in the sleep/screen off mode. In sleep mode the Galaxy Nexus apparently loses signals so users just cannot receive any calls, text messages, and push notifications. Numbers of users have reported this issue on the Google’s Android issue tracker site. Google has taken note of
the problem and has reportedly asked users to give details of the bug in order to come up with a fix. Users report that on unlocking the screen a small “X” shows up for the network status for a little while and then the signal returns.
While Google gets to work on the fix, users can reduce CPU clock speed to 700 MHz or fall back on the earlier android 4.0.2 version that is free of this problem. The CDMA version of Galaxy Nexus does not have this problem with the Android 4.0.4 update.
Android 4.0.4 has been described as an incremental update, offering stability improvements, better camera performance, screen rotation and other features but users certainly did not bargain for loss of network signal in the sleep mode. With Android 4.0.5 slated for release in April or thereabouts it may be worthwhile skipping 4.0.4 altogether.
Google released Android 4.0.4 update for the GSM Galaxy Nexus about a week ago. While some owners received the Ice Cream Sandwich update for the first time, most of GSM Galaxy Nexus units that got the update had already upgraded to Android 4.0.3 a few months ago.
Unfortunately, the update is broken in a way that makes all smartphones with the Android 4.0.4 firmware unusable. Since the update was made available several days ago, thousands of users have been complaining that they are losing signal as soon as the phone enters standby mode.
We advised those who were on older build to avoid flashing Android 4.0.4 until Google came out with a fix for the critical issue.
GSM Galaxy Nexus owners who have already installed the latest update should flash their devices back to Google’s 4.0.2 factory image, otherwise they won’t be able to receive calls, texts or anything else that requires GSM signal, as long as the phone is in standby mode.
Several tech-savvy users have already managed to duplicate the problem and found some workarounds, which are only available for rooted devices.
The reason the phone loses GSM signal while in sleeping mode seems to be the fact that the update forces the processor to go below the threshold required to keep the phone’s signal up, in order to save more battery life.
It appears that the issue can be avoided if the smartphone’s processor is set to 700 MHz, but the problem reappears when it’s set to 350 MHz speed.
Google has yet to come forward with an official statement, but the company is aware of the problem and is probably already working on a fix that will be delivered within the next few days.
Keep in mind that the problem is present on all devices that run a custom ROM based on Android 4.0.4, so it doesn’t really matter if the phone is rooted or not. We will keep you updated on Google’s resolve.
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