According to a recent thread over at the XDA developers forum, a number of owners of the GSM version of the Samsung Galaxy Nexus are experiencing some signal issues with their handset after upgrading to Android 4.0.4.
The problem apparently occurs when the display goes to sleep, and the cellular signal seems to disappear, which means that users who are having the problem are unable to receive text messages and phone calls.
When the display is taken out of standby mode the cellular signal seems to return, and this seems to be a random problem with the Android 4.0.4 update for the Galaxy Nexus as not all users have experienced it.
Understanding the Issue
The issue seems to be related to the phone’s power management system. When the device enters sleep mode, it appears that the cellular radio is being turned off or put into a low-power state, which is not reactivating properly when the device wakes up. This can be particularly frustrating for users who rely on their phones for critical communications, as missed calls and messages can lead to significant inconveniences.
Some users have reported that toggling airplane mode on and off can temporarily restore the signal, but this is not a permanent solution. Others have tried factory resets and re-flashing the firmware, but these methods have had mixed results.
Potential Solutions and Workarounds
While Samsung has not yet released an official fix for this issue, there are a few potential workarounds that users can try. One suggestion is to disable the power-saving features that might be causing the cellular radio to turn off. This can be done by going into the phone’s settings and adjusting the power management options.
Another potential solution is to use a third-party app that keeps the cellular radio active even when the phone is in sleep mode. Apps like “Wake Lock” can be configured to prevent the phone from entering a deep sleep state, which might help maintain the cellular connection.
It’s also worth noting that not all users are experiencing this issue, which suggests that it might be related to specific hardware configurations or network conditions. Some users have reported that switching to a different carrier or using a different SIM card has resolved the problem.
If you have had the same problem on your GSM Galaxy Nexus, leave a comment and let us know. Sharing your experiences can help others who are facing the same issue and might provide additional insights into potential solutions.
Source Phone Arena, The Verge
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