Replaced screen, still black - Xperia Z Q&A, Help & Troubleshooting

Hi
A month ago my screen suddenly went completely dead, the phone it self was functioning normally except the screen, \
so i posted this thread : http://forum.xda-developers.com/xperia-z/help/how-to-make-screen-dead-t3175115
then i decided to tear down the phone, i did and i played abit with the lcd flex cable, i got the screen to work but with very low brightness and a lot of blinking, i played a bit more with the same cable
and tried powering up the phone, the screen gone completely black again so i thought i broke the cable
i ended up buying this
www.aliexpress.com/item/LCD-touch-s...ria-Z-L36h-C6603-LT36-display/1449119790.html
it arrived and i played a youtube video of the device dis-assembly and copied every step exactly, tried powering the phone up and the new screen is black!
anyone have an idea what's going on?

ahmed1186 said:
Hi
A month ago my screen suddenly went completely dead, the phone it self was functioning normally except the screen, \
so i posted this thread : http://forum.xda-developers.com/xperia-z/help/how-to-make-screen-dead-t3175115
then i decided to tear down the phone, i did and i played abit with the lcd flex cable, i got the screen to work but with very low brightness and a lot of blinking, i played a bit more with the same cable
and tried powering up the phone, the screen gone completely black again so i thought i broke the cable
i ended up buying this
www.aliexpress.com/item/LCD-touch-s...ria-Z-L36h-C6603-LT36-display/1449119790.html
it arrived and i played a youtube video of the device dis-assembly and copied every step exactly, tried powering the phone up and the new screen is black!
anyone have an idea what's going on?
Click to expand...
Click to collapse
Maybe something not connected, or because it's aftermarket screen. There are lots of screens for sale but I don't believe they all work as good as the OEM screen.

ahmed1186 said:
Hi
A month ago my screen suddenly went completely dead, the phone it self was functioning normally except the screen, \
so i posted this thread : http://forum.xda-developers.com/xperia-z/help/how-to-make-screen-dead-t3175115
then i decided to tear down the phone, i did and i played abit with the lcd flex cable, i got the screen to work but with very low brightness and a lot of blinking, i played a bit more with the same cable
and tried powering up the phone, the screen gone completely black again so i thought i broke the cable
i ended up buying this
www.aliexpress.com/item/LCD-touch-s...ria-Z-L36h-C6603-LT36-display/1449119790.html
it arrived and i played a youtube video of the device dis-assembly and copied every step exactly, tried powering the phone up and the new screen is black!
anyone have an idea what's going on?
Click to expand...
Click to collapse
Did you ask the seller to exchange the item? There is always a 10% chance of a black screen when buying a replacement screen.
If you tested the screen by just connecting it to the motherboard,and it didnt work,you should be able to get a replacement for free(but you will probably have to pay for the shipping when sending the broken one back)
By the way. I need to get a new screen replacement(the current one started flickering and glitching after 5 days of usage-I literally held the phone on the desk,answering calls and putting it back on the desk,so I couldnĀ“t have damaged it),but I cant waste money. Was the package in a good state?
If anyone can recommend a cheap,but working screen(I dont care much about the 10% weaker colors,I just dont want the screen to flicker and glitch out),I would be extremely grateful.

Related

[PROBLEM] Died?

Hey guys, I was wondering if somebody would be able to maybe help me diagnose the fault\problem part with my non-working diamond...
Basically I went to a club one night and the place was unbelievably steamy / humid. My phone was working one minute and then the next it wouldnt display anything on the LCD. The backlight was working however.
Since then I havent been able to get an image on the screen although when trying to turn it on, it seems to go through its startup sequence (backlight -> vibration -> beep (i think))
I havent had any power to the phone since a day after it broke (a few weeks ago).
I'd like to get it back working again but dont know exactly what part i would need to replace. I'm fairly competent with electronics .
Any help/advite would be appreciated!
Haha, ok that's odd...
I've plugged it into my pc to get some data files off about an hour ago.. forgot about it and just looked at it now and the screen is displaying!
It is displaying and accepting input although it was flickering at first (like pixel shifting). but i pressed the power button to standby the screen and pressed it again and the display is fine with no flickering ?
Ive moved the phone about and shook it quite hard to see if there's any loose connection but the display still seems fine..
Anybody have any ideas as to what it may be?
I'm not going to deem it as fixed until I know what the problem was/is lol
cheers guys
Ok screen actually keeps flickering nonstop, and sometimes 'fades away' to gray/white/black
comes back after a few seconds though
Looks like a faulty connector?

X1's LCD got BLACK!

Hey dear friends
2 days ago my phone failed to the ground from top my bed and got wrecked
My phone's LCD show nothing except that a black screen with a little light
I think and I hope it's from that cable that connect contacts of LCD to main board I think it called Flat or something else.....
I disassemble it my self and I wanna to show it to a mobile service center tomorrow....
anybody have any idea about this issue?what's the problem?
Before you start considering taking it apart, try plugging into your computer first.
I know it sounds daft, but after I dropped my phone last summer, when I tried to turn it on you could see a slight change in the shade of black, yet nothing would show. (Implying that the screen was still powered in some way, but just didn't display anything)
I'd just tried to plug it in to get the data off it before sending it away after a few days of hoping it would come back on, and the screen came back on!
It might not work for you, but it's worth a shot!
Last Xperia X1 I had for repairs had black LCD after a fall. It buzzed and started up, but LCD remained black - flex needs to be replaced.
enigma1nz said:
Last Xperia X1 I had for repairs had black LCD after a fall. It buzzed and started up, but LCD remained black - flex needs to be replaced.
Click to expand...
Click to collapse
hey dear friends....
YES!!I've disassemble it all and I C that flex connection have disconnected....It's OK NOW...Horayyyyyy and tnx for ur helps
Steve_God said:
Before you start considering taking it apart, try plugging into your computer first.
I know it sounds daft, but after I dropped my phone last summer, when I tried to turn it on you could see a slight change in the shade of black, yet nothing would show. (Implying that the screen was still powered in some way, but just didn't display anything)
I'd just tried to plug it in to get the data off it before sending it away after a few days of hoping it would come back on, and the screen came back on!
It might not work for you, but it's worth a shot!
Click to expand...
Click to collapse
did this problem ever come back?

Xperia x1 screen failure

last night my x1s screen was going all fuzzy like different colours and cut out a few times. now today notthing. the screen is blank. backlight comes on i think. the phone starts up normal as i can hear the start up sound and i can accept calls. i think this is failure of the felx cable. Is this true? and if so is i worth get on and fiting it myself or going to a repair shop. im on the cheap here so any fix will do.
rocklobster666 said:
last night my x1s screen was going all fuzzy like different colours and cut out a few times. now today notthing. the screen is blank. backlight comes on i think. the phone starts up normal as i can hear the start up sound and i can accept calls. i think this is failure of the felx cable. Is this true? and if so is i worth get on and fiting it myself or going to a repair shop. im on the cheap here so any fix will do.
Click to expand...
Click to collapse
I have had the second part of your problem before where screen doesn't come on but the back light and everything else works. A couple of months back when I was at college I dropped my phone really hard at a party( I was wasted ) and the next morning the screen wouldn't come on. So what I did was I looked up the guide to how take the X1i apart and luckily one of my buddies had the same screwdrivers that I needed because he uses it on his the Blackberry Storm 2. So what I did was went to where the Flex ribbon cable was located unattached it, then reattached it, and put my phone back together and the screen came back on and still works to this day. If this helps press thanks.
http://forum.xda-developers.com/showthread.php?t=535664
i'm having a Problem too.
the to lines in the top of my screen are blue ^^
i think its a problem with the connection, but as it isn't really big and i don't have a newer phone i will dissasemble it later ;-)
please replace the * with t,or copy it without h**p:// (can't post outside links yet ^^)
h**p://a6.sphotos.ak.fbcdn.net/hphotos-ak-ash4/296861_222070397844215_100001237692896_682738_4498500_n.jpg

[Q] Phone works, screen does not yet sometimes it does

Hello
One night I was using the phone without doing anything special , some video watching . Phone went dark, tried to reboot. Blank Screen and the capacitive buttons flash. Left it to charge all night, in the morning it started but after I pressed the lock button blank screen but phone still working and receiving input.
Took the battery and SD card out left it for 30 seconds then started it again, Stuck at LG logo. Repeat , phone started ... Pressed lock button once then again to unlock , screen wouldn't start.
Used LG Mobile Update recovery tool to restore it ... Didn't solve problem. Sometimes it does not even start , just flashes buttons, other times it does without screen and last all works even the screen until first time goes dark , in the last two cases I can use LG On-Screen Phone without trouble, in doing so I installed a proximity sensor test app to see if it was causing my screen to not come back on , the sensor looked fine.
Facts:
1. Two day old Optimus Black p970, worked like a charm until stated problem
2. The app that checked proximity sensor showed the sensor to be free when my hand wasn't on it
3. The warranty laws in my country are idiotic so I would do or buy anything rather than send it so they can give me a new one in 3 months.
4. Tried another battery from another Optimus, fully charged nothing different.
5. Stock rom.
Do any of you fine people have some ideas on how to fix this? Thanks in advance
Hi there...
Sometime ago [1 year and a half or so~] I worked at a cell refurbishing facility [there were samsung, motorola and palm devices from sprint] and that problem you have was quite usual. Blank screen, still the phone is somehow usable like reciving calls...
There's this thing called "flex" which is the connector between board and display and that is what we fix, most of the time not even "fix it" just getting it in the right place...
This happen because of excesive use in those sliding or clamshell devices, in OB could be for overheating, you could try to fix it yourself or pay $20 usd [that's what it cost here]
Would that connector explain the fact that sometimes it doesn't start at all? hmm I am thinking now and I guess if it moves and somehow the phone feels it has not display connected it could fail to start... Anyhow thank you
actually yes, it could be only for the flex [some devices don't start at all when not having display or keyboard if there's any] but since our OB is not sliding nor clamshell type probably was overheating.
you say you have stock rom, well now I'm using CM7 but when I was at stock and after using the phone a few minutes it felt warm and some more minutes [like playing gunbros where you need to use both hands and a lot of movement] it was really hot and had to stop playing for a while.
what I'm trying to say is that because of overheating flex could have moved, but because of overheating too may have move something else, you couldn't belive the huge number of micro-things that reside in the board.
so if it's only the flex, it's an easy task to do, just unplug and plug again, but if it's something else it's quite hard to know just looking at it, you need to do some electric measures and stuff, the recomendation is to take it to a tech center or something
Hi. I Have same issue. Two times when i press power buton, butons flashing and screen still black. Phone not responding. I must remove baterry.
Sent from my LG-P970 using Tapatalk
Hi there, got the same problem too with my optimus black. Screen goes flickering, shut down don't do any good, and the phone temperature is kinda hot. But in my case it work after I clean some cache and data in the phone storage through LG OSP. After that, the phone temperature back to normal and the phone screen back to normal also. I believe that in my case the phone is overheated.

[Q] [HELP] Black Screen but Functional Device. Galaxy Note N7000

Hello Everyone!
So i'm really stuck over here. I have an international Samsung Galaxy Note N-7000 that is working but with a black screen!
First of all i want to discuss exactly what i have done:
1.i had a problem with the charging port where it works sometimes and most of the times doesn't. So i decided to order a new charging port to replace the existing one.
2. When i received the new charging port i instantly started to dissemble the device (The device was working perfectly before starting replacement)
3. After i removed the old one and installed the new, i turned on the device and it showed only a black screen, then after some time i saw the touch buttons light, but still the screen is black:crying:
4. so i decided to return back the old charging port and this time when i turned on the device it sounded like it's booting and working but still with a black screen. The phone even received call and the touch screen is working but with black screen.
What do you guys think has just happened to my phone? could the new charging port cause any problems with the motherboard?
i'm really stuck and don't wanna go to a service center
I have recorded a video of the problem. Please see it below
since i'm new over here, i'm not allowed to post youtube link.
please head to youtube and type my username and watch the video : nadeaa0a
thank you very much
My younger brother always liked to disassemble things with a hammer wondering after why it wasn't possible to assemble it the other way around.
It took him a few years to understand that real knowledge of things is a clear advantage.
Go to a service center and get help from a professional instead of making it ...
Sent from my GT-N7000 using xda premium
maybe you disconnected the wire you were changing ports ! don't worry and don't freak out just take to any shop and they will check it i don't think the screen is burnt because if it was it would be more expensive ! go to any shop and ask them to change ports and check the screen
for what you described, my best guess would be either you unplugged the lcd and didnt plug it back in properly.... or you damaged the flex for the lcd... the charging flex wouldnt cause the problem... just inspect the lcd flex and plug for damage... if no visible damage plug it in again and try it again... lets hope its just not plugged in right...
I have the same problem
Hi,
I have the same problem. I had never disassembled my phone and the screen slowly turned purple and started blackening out. It was fully functional. This I knew because I connected it to my Windows 7 computer and used Android Commander. I ordered a new screen complete with bezel etc. I have two batteries, the first didn't even charge after I put it in the phone (it had drained totally during the wait for the new screen), the second was partially charged and allowed the screen to boot. It is however behaving like the first screen did before it went black, that is purple. I am sure I have not done anything wrong with the connections. Could it be the batteries? or the adapter flex? I just hope it is not the mainboard. It is not on warranty and we don't have that many honest phone specialists around where I live. I am almost sure others have experienced the same problem and someone on xda knows what the problem is. If you do I would be indebted.
nadeaa0a said:
Hello Everyone!
So i'm really stuck over here. I have an international Samsung Galaxy Note N-7000 that is working but with a black screen!
First of all i want to discuss exactly what i have done:
1.i had a problem with the charging port where it works sometimes and most of the times doesn't. So i decided to order a new charging port to replace the existing one.
2. When i received the new charging port i instantly started to dissemble the device (The device was working perfectly before starting replacement)
3. After i removed the old one and installed the new, i turned on the device and it showed only a black screen, then after some time i saw the touch buttons light, but still the screen is black:crying:
4. so i decided to return back the old charging port and this time when i turned on the device it sounded like it's booting and working but still with a black screen. The phone even received call and the touch screen is working but with black screen.
What do you guys think has just happened to my phone? could the new charging port cause any problems with the motherboard?
i'm really stuck and don't wanna go to a service center
I have recorded a video of the problem. Please see it below
since i'm new over here, i'm not allowed to post youtube link.
please head to youtube and type my username and watch the video : nadeaa0a
thank you very much
Click to expand...
Click to collapse
it shows as color black, or nothing (like locked device)? I used to face this problem too with my infuse 4G, but it was because of installing custom rom. Had problem with few rom i installed but nothing happen on my stock one. If your device is just not lighting up(like locked device), then i guess because of ROM, but i'm not sure yet. But if it shows "color black", then i don't know.
THIS IS NOT A SOFTWARE BUG. Its the Screen flex or the ribbon. Disassemble the back part, and take a look at the flex or the ribbon connector of the screen, clean the conector with a tooth cleaner with alcohol and let it dry for a few minutes. Put it back on and mount the back part again. Test it, it should work.
Same thing here: changed the usb port, booted fine, had issues with the sim, turned off took it apart again to check, put it back on and black screen.
Yea having the same issue here, dismantling the usb module and put in new one, power up black screen!! The menu and back button did lights up, and the phone is working too, can hear the booting tone, anyone got any solution for that yet?
jasonhs said:
Yea having the same issue here, dismantling the usb module and put in new one, power up black screen!! The menu and back button did lights up, and the phone is working too, can hear the booting tone, anyone got any solution for that yet?
Click to expand...
Click to collapse
You damaged your LCD flex cable or didn't plug it in correctly ..
N00b... said:
You damaged your LCD flex cable or didn't plug it in correctly ..
Click to expand...
Click to collapse
I have unplugged and replug back few times, same result. Guess most probably i have damaged the flex cable. Replacement part seems too pricy to change, rather buy a new phone.
Sent from my GT-P6800 using Tapatalk

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