notification light not working

[arjd_09]

in mine xperia sp notificatuion light is not working at miss call aur miss msg .................................... i need solution plzzzzzzzzzzzzzzzzzzzzzzz help

[JosefAustria]

Turn off the stamina mode, then it works.

[gadgetman1]

It's a bug which happens to be sorted by turning off stamina mode.  I get missed msg notifications (the light goes on flashing for ages, so it's not about power saving) but I don't get missed call notifications, like you.