Sony Xperia Z with fresh design is really a good option. Sony always makes great product quality. However, this time Sony made its customers disappointed. Some people are reporting problems with their LED notification on the Sony Xperia Z.
When users are charging their phones, the LED light will always light up. This makes users easily missing phone calls, txt messages, emails, etc. At first, it was thought the problem might be related to the Stamina mode being enabled. However, even with this switched off people were still not receiving notification of missed calls and SMS texts.
Luckily, there appears to be an easy fix for this. All you need to do is to factory reset the handset. Even it is not a good idea to factory reset, this is the only solution we can get till Sony release official update.
Then apply all of your settings manually such as Wi-Fi i.e. don’t use backup to restore your settings. Many are reporting that once you do this the notification light works as intended. Hopefully, this bug, will be sorted out in the next firmware update.