Screen black but phone works

I haved the same probleme it's come because the connection between the mother board and the usb wire was baddly plug i have to maintain the connections and restart my phone (hold second the power button) if this solved the problem you can add a lot duct tap to make pressure between the connections and the duct tape. Bye sry for my english

I had the same problem when i replaced the screen, solution i bought another screen replacement and it worked properly once installed.

go to ebay or amazon and order a new digitizer .....lcd...... and frame assembly ...... do not buy from china it takes too long to get !!! then go online to youtube and watch one of many cell phone break down videos on your particular device. It will take you step by step to switch out the assembly. If you are not familiar with cell phone repair then this will be the easiest way to fix. Make sure before you assemble you have to make sure you double check all conections ......screws...... wire lead runs....... and snap connects.

DO NOT ATTEMPT TO REPLACE THE GLASS ALONE IF YOU ARE NOT FAMILIAR WITH CELL PHONE REPAIR !!

It is way too easy to damage lcd ......warp the frame ...... and waste a lot of time and money !!

I have answer to this!

I have had this problem like 3 months now and i finally fixed it.

Basically what i did was that i bought a broken nexus 5 (only the screen glass was broken) and tried to swap every part one by one. The one that was not working was the main dock!

It is a cheap fix, like 10£ on Ebay.

I am writing this post because anyone else haven't.

I hope that someone sees this.

I now copy this message to all other threads so people can fix their nexus 5's :)

PS:as you can probably tell English isn't my first language.

I had the exact same issue so what i did is blow it out. took a small knife. and scored the male and female parts of the connector put it back to gather and the screen seems to be working. mind you only did it 20 minutes ago so we will see what happens :-)

Hope this helps someone.

Also for you will notice decreased auto when talking on the phone. advise for that is to take the mic cover off. and use some type of cleaner. "I used water which isn't the best" and cleaned and the cover and the vent. fixed the auto issue so far we will see what happens with that as well

Try bending the screen a bit it works like a charm...

Hi everyone,

I had the same problem as described- my screen crashed, but it worked normally for some time. Then, suddenly it showed me some colourful static images and occasionally lines, plus touch stopped working. I figured it's the crashed LCD, so I've replaced it (whole LCD with digitizer)- still a black screen. Imagine the way I felt when I turned the phone on after a few days without it, like a child who receives a Christmas gift- and still black.

I did some research and found some info on connectors- pushed them hard and well, I got the image back. Unfortunately, it wasn't for good- after a few minutes it disappeared, also the touch was going totally crazy (the ghost syndrome) or didn't work at all. Important thing- I could manipulate the screen by pressing the back of my phone near the letters "u" and "s"- sometimes it worked, sometimes not. I figured (judging by the location where pressing worked) it had to be the USB flex plug, that connects it to the mainboard, so I decided to check it. I've opened up the phone and took off the upper plastic part held with screws- and I've put some pieces of paper in there, to apply constant pressure (directly on the plug and another place where pressing seemed to affect the screen), then reassembled it, and... voila. It worked. Try it- maybe it'll help You too, You have nothing to lose in the end :)

Can confirm, I needed a piece of paper on top of the pins just below the battery (daughter board) to force the lcd connection to stick. It was pretty loose, but I thought it had seated the first time, then I had just a black screen when I switched it on. Stuck the paper under there as advised and it worked first time! Fingers crossed its a permanent (non flammable) solution!

Hi all,

I've had this problem since 1,5 years now and I found a solution. I already ordered a new flex cable on ebay, but that didn't work. This is only the case when the backlight comes on but the phone doen't show anything on the screen.

Yesterday I tried to fix a ylod on my playstiation 3 and I had to reball the graphics card with a heat gun. After that was fixed, I thought: why not try this on my Nexus 5?

So I took out the motherboard and first warmed up the whole board slightly with the heat gun set to low to prevent localized thermal expansion. The board should feel warm but not too hot.

Now place the motherboard on a flat surface (like an old book or something) and place the heat gun about 5 cm above the ribbon cable connector and heat it on low setting for about 20 seconds. Watch out that the plastic ring in the vibration motor hole doesn't start to burn (as it did in my case). When you're done, make sure you DON'T TOUCH the board until it it's completely cooled down. Place it back in your phone. Make sure you place all the connectors back (I forgot the battery as it slipped under the board) and plug in power.

My phone is working like it never stopped!

It seem the backlight of the LCD is broken.

Try reseating the LCD connection, worked for me.

I sent mine back to lg for warranty repair and they sent it back unrepaired saying the motherboard was bent. As soon as I got it back I opened it up and reseated all the connections including the battery connection. Give it a try.

i have a nexus 5 D820 which has the same problem. On closer inspection of motherboard i found that one coil is damaged which causes the back light problem. then i just push it after that the phone was working perfectly for some time.

unfortunately i cannot permanently fix this coil..now i need to replace it..

can any body tell me the name of this part.... see the picture in the link and

http://i59.tinypic.com/o6yxw7.jpg

re sold lcd connector on board 100% solve for me

hi i fixed one nexus 5 with black screen but phone is on:

in my case , fixed removing nfc wireless charging & board , just try disconnect the connector of nfc board

Yup! I had the same problem....it's because of the dock cable....using otg etc. which consumes power from your phone affects the dock cable of your nexus5 which results in frequent black out of display due to the damaged dock cable. There is only one solution to this problem, change the dock cable. And try not to use any external drives which consumes power from your nexus5.

Its the problem from motherboard to the display connection.once you restart the phone by holding switch and volume up button then its normal,and might happen anytime ,I would recommend to check youre phone with authrised person and ask him to connect them properly

Hi guys

So i bought the flex cable and replaced it,but didn't work

The problem persist here ,so I think which the problem is on motherboard Unhappily

The unique solution was put one piece of paper on conector,but sometimes the screen turn off again

For now is wait to buy a new mobile...

Good luck people!

http://forum.gsmhosting.com/vbb/f494/nex...

Near volume + . All credits goes to moshekatie

Phone works well except when I use the phone. my screen goes black when I receive a call or place a call . I am unable to hang up or use the dial pad

There could be a simple solution too. I had same issue, screen will go black once locked (or auto lock). Phone will remain on, but nothing will be visible. Removing battery and re-inserting only will bring display back.

Now it’s fixed. Here is the solution. Check your brightness level, if it is reduced to zero, increase a bit and set it. Lock your phone and unlock - you see no more display black issue.

P.S: This is applicle only for display changed mobiles

Hi!

It appears you must have made a mistake in replacing your screen. It's a good idea to your screen again and check if you connected all your pins properly.

Throw it away and buy a new mobile

yeah i have the same problem i don't know how to fix it

Phone back light is black. Phone works.

When i call someone my LG nexus 5 sceen goes black,please how can i fix my proximity sensor

Yeh I’ve been waiting to fix my phone

Its not Dock or display or enything else.I have nexus 4 and 5,it's just a proximity sensor issue.In nexus 4 it was dirty place on proximity sensor,nexus 4 have external proximity u can change it,but nexus 5 have integrated proximity sensor.So you have only 3 chances.1)Clean a proximity sensor place from dust with alcool.2)Replace faulty proximity sensor.3)Stop working proximity sensor with any app(if u do this you need to have rooted device).Don't try anything else,belive me.

Its not Dock or display or enything else.I have nexus 4 and 5,it's just a proximity sensor issue.In nexus 4 it was dirty place on proximity sensor,nexus 4 have external proximity u can change it,but nexus 5 have integrated proximity sensor.So you have only 3 chances.1)Clean a proximity sensor place from dust with alcool.2)Replace faulty proximity sensor.3)Stop working proximity sensor with any app(if u do this you need to have rooted device).Don't try anything else,belive me.