Sony has updated Xperia arc S, Xperia pro, Xperia ray, Xperia neo V and others to Android 4.0 Ice Cream Sandwich OS. Well that was long awaited upgrade waited by many Sony Android phones lovers but now they can enjoy the new features packed on ICS OS along with the newly customized user interface. But many users who have upgraded to Android 4.0 ICS since it has been launched, the upgrade to Android 4.0.4 went correctly but users are facing issues. Several users around the world have reported the LED notification bug on their phone.
The LED notification on Sony has been the crucial function as its lighten up when there is an SMS or email or phone call. The new Xperia smartphones like Xperia S, Xperia U and Xperia Neo L are based on the bezel at the bottom. For these phones the LED notification doesn’t seems to work correctly for missed calls. Reported that it works fine when you have an SM or email while as the screen display is ON. Again the notifications works fine when you get an SMS but only if you install the SMSAwake Android application.
As reported to Sony they says the problem would be fix in the coming minor update but it could take time and until then SMSAwake is the solution temporarily. Do let us know via comments here if you are experiencing the same problem.