Any problem in Xperia Z Notification LED isn’t working ? Don’t worry, we have a very simple solution for your problems. Some user are reporting problems with their LED notification on the Sony Xperia Z.
Sony Xperia Z suffering LED notification issue [solution]
You have to factory reset the handset. Then apply all of your settings manually such as Wi-Fi i.e. don’t use backup to restore your settings.
Any problem in Xperia Z plzz tell here (cmnt box)