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The Samsung Galaxy Note 4 is a cellular smartphone that was released in October 2014. The Galaxy Note 4 Model Number is SM-N910, SM-N910A, SM-N910T, SM-N910V, or SM-N910R4 for American variants.

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Screen is black and unresponsive

I dropped my phone (galaxy note 4) outside the other day and I tried to hit the power button to turn on the screen but nothing happened. The screen was black and never came back on. The phone itself still vibrates like I'm getting notifications and the LED light still lights up. The lights at the bottom of the phone will light up as well when I hit the power button like normal. I've tried taking out the battery and holding the power button for a minute and putting the battery back in but that doesn't work. Please help!! Thanks!

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2 Answers

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At this point if it was me I would first check to see if the displays flex cables may have popped loose. Unfortunately they reside right below the display. Instead of lifting the display right away I would try removing the back housing from the phone to gain access to the motherboard. You will not be able to see the displays flex cable connection to the motherboard as they are on the other side of the motherboard. But if you look at the guides on this site you can get an idea of where they are located. Once you have an idea of where the display cables connect to the motherboard you may try applying pressure to that area of the motherboard to see if maybe you can hear the display connection snap back into place. If it is loose you may hear it snap into place or you may not. After you have applied pressure to that area go ahead and try putting the battery in and try powering it on to see if you have a working display. You may attempt this a few times. If that doesn't work try to very carefully lift the display to check the display cables. If they are tightly connected to the motherboard then you know the LCD or backlight in the display is damaged and you will need to replace the display. Hope this helps you out.

Here are the guides for this device:

Samsung Galaxy Note 4 Repair

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What if the touch screen is still responsive?

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This saved my life! Thanks guys!

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I suffered from this issue too, and had been reading all sorts of things online. It used to be that the only way I could get the display to show anything was to put it in the freezer. I had been reading about how the display ribbon cables or flex connectors could become disconnected if the device was dropped. I had recently dropped my device, and right after that the issues started. I was considering taking my phone apart (that would have been my first repair, and I don't have really any proper tools), but before I went that far, I decided I should try to push the top of the display together with the other side, using much more force than I was comfortable doing on any kind of electronic device. ( The top because after dropping it right on the screen the top right corner seemed to pop out a little bit). that solved my screen issues! hope this helps you guys!

Edit: I have read several of the answers on this thread and found that they can definitely be useful. This is where the freezer answer came from (look in the comments for this post). Hope you can find something useful! Phone wont charge or turn on..

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Yo this saved my life! Thanks guys!

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Fixed it but it went back to its black screen after awhile. Could you tell me exactly how much force did you apply and where and in what way? Would be appreciated! Thanks!

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Well, jacksonyap95, I did my best to find a picture of the inside of the phone to see where exactly the ribbon cables where in relation to the outside of the phone, and found that they were about an inch from the top of the phone. I took two hands and put the part of my hand beneath the palm on the phone about one inch down on both sides, then applied quite a bit of force. At that point, I wasn't to worried about breaking the phone because it wasn't working anyway. I would suggest that if you or anyone else uses this, you use it not to get a working phone, but to remove pictures and other important things off your device, because after maybe a month or two of use my Note 4 died and has not since shown any signs of life. I have disassembled it and can confirm the location of the ribbon cables. I hope this helps!

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You could also try the freezer trick. This is something I read in a post on this forum from Jade in another discussion about the Note 4.

1: remove any SIM or SD cards from your device

2: Take out the battery and put it in a Ziploc bag

3: Put the entire phone into a separate Ziploc, then seal them both.

4: Put both bags into the freezer for, depending on how comfortable you are with condensation, 20-30 minutes. Some say 10 just in case, but I've left it in there for longer that 30 minutes and it didn't harm it.

5: Put the battery back in the phone (the SIM and SD cards too if you don't want to boot without them) then plug it in. You can leave it for several minutes, but hopefully you should see the lightning bolt and the red LED on. You can try to power it on now.

Another suggestion once you've powered it on would be to install Wakelock and engage partial wakelock. Also don't run it out of battery, it doesn't like that. Hope this could help someone!

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