[Q] Blank screen after replacement? - Legend Q&A, Help & Troubleshooting

Hi,
I got a HTC Legend with a broken screen and digitizer.
I replaced the screen and digitizer without any problems.
I turned on the phone, and the screen went on and showed the android boot screen.
30 seconds later the screen went blank, and now it doesn't work.
It's like the screen displays white/black pixels every second ribbon
The phone still turns on and plays the "startup sound".
I have cheched the ribbon cables, but they all seem fine.
Is the screen broken or is it something else?
Any suggestions to what the problem is?
Thank you for your time

My Legend screen was cracked a few days ago after the phone fell, I was looking to get a new screen as well. Where did you get your replacement screen from? It looks like you got a faulty screen based on what you've said.

Related

Q: Screen Not working, fix?

So I'm getting my girlfriends fascinate from her since she got an Incredible 2. The only little problem is the screen doesn't work. A little background on the problem. She woke the phone up and the screen no longer displayed all of the picture. Very little of it can be seen and it is discolored. The actual touch screen works though, you can unlock the phone if you can navigate the lock screen. The phone was dropped in water a week prior to this however it still worked fine up until the screen problem. Does this sound like just replacing the screen would fix the problem or do you think there's a deeper problem?

[Q] Problems after replacing screen, need help

Hey guys, so I had dropped my phone and shattered the screen on the top left and there was a crack down the middle. Anyways, I ordered a replacement and replaced it..and low and behold, either I did a bad job or somethings up with the ribbon from the replacement screen. When I turn it on, the screen will display this weird static and I can see the mikmik splash screen (Newts RLS6.0), then it'll go black. I guess once the phone goes into sleep mode I can turn the screen back on with no problems. But, here's my main problem..I can't get into amon ra without the screen completely being messed up. I'm a flashaholic and this is terrible for me. Does anyone know how to fix the problem itself, or is there a way I can flash ROMs through PC? (S-Off). Thank you guys in advance

Changed digitizer, LCD doesn't work

Hey guys,
I am not sure if this is the right forum to ask, I am desperate and I need your help.
My navigation buttons started to push itself, so I disassembled my phone (gently of course)
I found out that the digitizer flat cable is torn like.. 3/4 of its width so that was probably the problem.
I ordered a new digitizer and it arrived yesterday, so I put everything together, started the phone and the LCD doesn't work.
When I start the phone it vibrates as usually, then the LCD screen turns on for couple of milliseconds so I can just barely see the HTC logo and then it turns black, the navigation buttons are lit and I've heard notifications after I let it run for 30 seconds.
What could be the problem? I checked multiple times if all the flat cables are plugged in correctly. It's weird that the LCD runs for couple of ms and then it turns black.
Thanks a lot for your answer,
Adam K.
How bright does the LCD get? It is possible the lighting element went bad.
It gets bright as usually, but just for half a second, then there's just black screen.

LCD Backlight is on but there's no video output

Hello!
My phone fell from a high place some weeks ago and the screen shattered. Touch was unresponsive, clicking everywehere, but LCD was fine, i could see everything on screen normally.
Ordered a new screen. Changed it, but when I turned it on, only backlight of the LCD was visible, but it was displaying nothing. I thought it was a defective screen (either way, it was, lots of stuck pixels), sent it back and bought another from the same seller. When I changed it and turned it on, again, no video output, lcd would light on but woundn't display nothing on screen. Googled a bit, found out it could be a defective fuse on the motherboard, and that soldering it again would solve. I know nothing about this kind of stuff, so I picked up a tweezers and apllied a little force on every fuse, because I thougth that way I could try to solve it. Well, it worked, kinda. I put the screen above that blue plastic glue only for testing, and it worked, I felt reliefed for seeing sony boot logo again. Figuring out it had worked, i took out the screen, took out the blue plastic, and glued the screen back on. For my surprise, it had the same problem as before, and it doesn't matter what I do now, it wont work anymore, only displays a black backlight with no video.
Could anyone help me out with this? Give me a hint of why it worked once but not anymore. Could it be there's really a defective fuse, or it was just a coincidence that it worked after it had force apllied? Also, the Screen flex is kinda loose, it keeps coming off all the time, and it's really hard to plug it to the LCD sometimes, is it supposed to be like that, or could it be the culprit? Also, touch is working normally, i can't see nothing on screen but i can click and feel it vibrating.
It's kind of a big text, but that's the way I could explain it. Sorry for the bad english, it's not my native language.
And thanks in advance if anyone can help!

[Q] lg g3 coloured strips on screen

Hello XDA.
The screen on my LG G3 Verizon (vs985) has been acting weird and I really would like a second opinion about if I have a screen issue on my hands or if it is a motherboard problem. I included pictures below.
Screen responds to double-tap-to-wake, and buttons still work. I'm able to turn phone off by pressing power button (as long as it normally takes to display Power Menu), then tapping on where the Switch Off button ought to have been displayed. Apparently, motherboard sends stuff to screen, but screen unable to visibly display it.
I've been using motherboard since it was bought new 6 months ago so I really doubt it's the motherboard, but I could be wrong. Screen is over 4 years old. The best way would have been to try another trusted motherboard (if screen is still not normal, then it's DEFINITELY screen's fault). So in the absence of such a conclusive test, I would appreciate opinions.
Thanks.
Pictures (L-R): When booting (picture taken with flash), when booting (picture taken without flash), after booting into Android, phone charging with screen switched off.
SOLUTION: It turned out to be a screen problem (screen was replaced and voila!).

Categories

Resources