So this morning my phone screen just died. Didnt drop it or anything but suddenly it stopped working. The phone turns on (can hear the sound and see the LED lights light up). The screen is also still responsive because the phone vibrates on touch but its just completely black.
Help.
may be the flex cable connecting the display is loose?
Krachan said:
So this morning my phone screen just died. Didnt drop it or anything but suddenly it stopped working. The phone turns on (can hear the sound and see the LED lights light up). The screen is also still responsive because the phone vibrates on touch but its just completely black.
Help.
Click to expand...
Click to collapse
may be one of the flex cable connecting the display is loose?
there will be 2 or 3 connections between the display and board.
nijom said:
may be one of the flex cable connecting the display is loose?
there will be 2 or 3 connections between the display and board.
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Click to collapse
so i should take apart the phone?
if no other go!
Krachan said:
so i should take apart the phone?
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Click to collapse
if issue remains, you have to check by disassembling the phone.
check ifixit site for instructions and please don't open without proper tools...
Related
So this was my first breakdown of a phone...my brother gave me an HD2 with a non-responsive digitizer, everything else seemed to work just fine.
I disassembled it, accidently tearing the flex cable after it gets thin and goes to the volume buttons. Anyway...I replaced the digitizer...thinking I could just modify the volume via software controls, and stupid me had previously set the hd2 to boot into magicdlr always when the phone turned on. So when I turned on the phone I couldn't do anything because it would boot into magicdlr and I had no volume buttons to scroll up and down, and the option selected was boot into windows which was not on the phone (only cm7 was at this time).
Anyway...after getting a replacement flex cable, and reassembling everything, I couldn't get the lcd to work. Backlight would light up, but no picture, no sound, just a vibrate and the backlight turning on. I tore it down, triple checked all the connections, and still the same thing
So I tried a seperate lcd assembly, tripled checked all connections, and still same issue as the above paragraph, backlight but nothing else when I try to power on. I also retried the old flex cable (the one without the volume connector) and that didn't make a difference either.
My only guess is that I messed up the lcd connector on the mainboard, even though it doesn't look visibly damaged in anyway. Does anybody have any other ideas/suggestions?? I would love to get this up and running as its been my first smartphone project...I've done lots of works on desktops and laptops but never smartphones.
gdawson6 said:
My only guess is that I messed up the lcd connector on the mainboard, even though it doesn't look visibly damaged in anyway.
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This is my suspicion too!Even not visible at first sight, try again with a magnifier!
Good luck!
Hi all,
I had a touchscreen issue (sometimes not working) in my HD2 so I ordered a new fabric screen+lcd assemby. I replaced it very carefully but now when I plug new lcd it is not working. Phone is working, buttons, vibration, hear the sound when turning on but there is only backlight on display and just shows black screen. I am sure that display is ok because I tried to put old one (wich was still working before replacement) and it has same issue (backlight works but display is black). Can you give me some ideas what is wrong ????
damaged lcd ribbon connector on mainboard or ribbon not being inserted fully or latched securely
Ty booting to bootloader ...
Help
The flex cable is not attached correctly or the main board is broken and before you close your phone try it. If you can't do this give someone your phone and he will recover for you.
The problem is sloved. I dissasambled all phone and fix it once again and now it works. Anyway I got another problem of white screen on my second device. Did anybody find a solution for white screen ever????
wojcimierz said:
The problem is sloved. I dissasambled all phone and fix it once again and now it works. Anyway I got another problem of white screen on my second device. Did anybody find a solution for white screen ever????
Click to expand...
Click to collapse
Have you tried turning phone on with volume down button pressed???
You should see 4 colors. Try this. I search for you.
http://forum.xda-developers.com/showthread.php?t=2263026
try with this link.
Yes I have read this before but I think that white screen problem is not sloved in this thread. But maybe I could be wrong.
hi there just had my screen replaced and now i cant seem to turn my phone on
if i unscrew the casing the motherboard moves slightly and the phone turns on, trying to put the casing back on is impossible without the phone turning off again?
any ideas of what i can do? all the plugs seem pretty tight and connected?
thanks
danay said:
hi there just had my screen replaced and now i cant seem to turn my phone on
if i unscrew the casing the motherboard moves slightly and the phone turns on, trying to put the casing back on is impossible without the phone turning off again?
any ideas of what i can do? all the plugs seem pretty tight and connected?
thanks
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Click to collapse
Hi mate
Seem like the power button is jam or broken.....was it working before the display was replaced?
hi thanks for the reply,
yes it was all working ok, im not sure about the power button? it seems to work fine when in the right spot
https://www.youtube.com/watch?v=BvZNlsbWuEs
I'd go with the phone to a local repair shop and show them what happens.
Since it turns on when it's only in a certain position, it must me some faulty contacts.
When the screen was replaced they might have damaged something.
Was it done in a local repair store? If so, did you check the phone before accepting it back?
have you tried disconnecting front camera, ear-speaker or proximity/light sensor, camera or hardware button flex cable one by one, to check if problem persists? i believe thats may be connector related problem.
Hey there, I'm having some serious trouble with my S4 i9505, I recently did a LCD and digitizer replacement, and the connectors are connected, but the phone boots up with a green screen (pic included) the blue led notification light turns on, and the boot up music plays, then the home row button backlights turn on, and it also makes notification sounds, so it's alive... but nothing visually so to speak. I've tried almost every troubleshoot suggestion under the sun; but to no avail. Anyone else out there who has experienced this and could give some insight as to a solution? Much appreciated, thanks.
BlaineLondon said:
Hey there, I'm having some serious trouble with my S4 i9505, I recently did a LCD and digitizer replacement, and the connectors are connected, but the phone boots up with a green screen (pic included) the blue led notification light turns on, and the boot up music plays, then the home row button backlights turn on, and it also makes notification sounds, so it's alive... but nothing visually so to speak. I've tried almost every troubleshoot suggestion under the sun; but to no avail. Anyone else out there who has experienced this and could give some insight as to a solution? Much appreciated, thanks.
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Click to collapse
If the connectors are connected then the screen is probably dead.
Lennyz1988 said:
If the connectors are connected then the screen is probably dead.
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Click to collapse
I doubt it, since the screen does flicker when I press the power button rapidly a few rings, and the LCD and digitizer are brand new, replacement parts I had ordered, so not sure what the underlying issue is... going to take it into a repair shop it seems.
Hi,
I broke my screen on my nexus 7 screen some time ago and only got round to replacing it last week. The problem is after I replaced the screen I can see nothing on screen but the tablet is on, LED flashing to show I have notifications an also volume up sound when volume is at max.
I have double checked all my connections and all seems well. The next thing I guess it to replace the ribbon cables to find if the problem lies there.
Has anyone had a similar issue and could indicate if I am missing something.
Thanks,
PazyP said:
Hi,
I broke my screen on my nexus 7 screen some time ago and only got round to replacing it last week. The problem is after I replaced the screen I can see nothing on screen but the tablet is on, LED flashing to show I have notifications an also volume up sound when volume is at max.
I have double checked all my connections and all seems well. The next thing I guess it to replace the ribbon cables to find if the problem lies there.
Has anyone had a similar issue and could indicate if I am missing something.
Thanks,
Click to expand...
Click to collapse
The same thing happened to me on my note 2 u have to change a chip inside your phone which shows the display there is nothing wrong with your phone it's about display it will only take 50$ to replace it