I have a samsung s4 and it is turned on and I hear it ringing or notifications sounds but my screen stays black
Best answer by Philosoraptor
Try removing the battery and powering it back on. If the screen does not respond at all, then it's likely dead. If you purchased this phone less than a year ago, it would still be under warranty and you would then want to contact customer service or take it to your nearest Koodo kiosk.