The Samsung Galaxy S4, model i9505, features a 13-megapixel rear camera, and a 5-inch 1080p display.

625 Questions View all

Black screen after minor shock, power button doesn't seem to turn off

Hi All,

Just posting here in one last attempt to get this thing working without buying a new display assembly.

My brother used his phone to playfully hit a friend (who was acting dumb) on the stomach. The amount of force the phone supposedly received was probably about the same as dropping it a couple feet onto a carpeted floor. However, after this incident the LCD stopped working. It still played sounds and the capacitive touch buttons still lit up when pressed.

At first I thought it was the motherboard, since it was a refurb I had just installed to replace one damaged by rain. I sent the refurb back and bought a new one, but the problem persisted.

I've visually inspected the cables as best I can, and they seem to be fine. I don't believe the digitizer is working, since the capacitive touch buttons don't light up when you touch the screen (they're supposed to, right?). Also, when I press the power button it doesn't disable the capacitive touch buttons, which makes me think it's not shutting off (which is why I originally thought it was a motherboard problem).

It seems odd that a light tap, something much less forceful than a drop on a hard surface (even in a case), would have ruined the screen, but maybe it did. Or maybe there was some water that was in the screen and the knock moved it into a critical area.

Anybody have any ideas as to what to try before buying a new display assembly?


Answered! View the answer I have this problem too

Is this a good question?

Score 0
Add a comment

2 Answers

Chosen Solution

Ended up replacing the screen for $70 and it fixed the problem.

Was this answer helpful?

Score 0
Add a comment

There is a posibility that the screen connector came loose but you're probably going to need a new screen as this is usually caused by the LCD screen being broken.

Was this answer helpful?

Score 0


Yeah, I've reseated all the connectors already but no luck. Oh well. Went ahead and bought a new screen. This is turning into an expensive phone to maintain...


s4's aren't cheap to replace the screen on, good luck


Add a comment

Add your answer

Kyle Combes will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 80