Display issues/color problems/flickering - Wing, P4350 General

Hopefully, one of you will know the answer to this, and save me some money.
I have a Wing I just fixed for a friend by replacing the LCD - the new LCD works in the sense that it's no longer cracked, however, I'm seeing some anomalies that I dont recall it having before.
When the keyboard is closed, the color is 'off'....the blue of the title bar looks like the gradual fade is blocky (kinda like when a PC's vid card is set to 8 bit color) and a little green. When I slide the keyboard out the tiniest noticable bit, the color goes back to blue, but is still blocky - slide it further, and the gradient corrects itself, and the display looks normal.
Obviously, the problem is that it only looks good when the keyboard is open - that's not how I like to carry my phone, though.
Since I jsut replaced the LCD, I'm thinking either loose connection (which I doubt, as I'm very careful to properly seat all the cables) or a bad flex cable.
Can anyone contribute to troubleshooting this problem? I can deal with buying a flex cable if I have to, but if it's something else, I may as well just buy a new phone (I'd hate to see what a mobo goes for on this thing....)
Anyone got an idea?
Thx,
- M

Related

stepped on my at&t 8525 :(

While carrying a HEAVY 32" CRT TV my phone fell out of my pocket and I inadvertently stepped on it while wearing steel-toe work boots. The phone seemed to work even though the screen was cracked... I could get the comm manager up and push where I remembered the vibrate button to be and it seemed to work.
I put in a new LCD panel and all I got was a boot sound and a white screen, so I also tried a new flex cable with the same results. I also can't seem to get any kind of reaction out of it like before so I'm not really sure where to go next.
I'd really like to fix this thing but it's not worth putting an arm and a leg into it.
What do you guys think I should try? Anything I'm overlooking or something? Any help would be appreciated.
Thanks,
Noah
retroman2128 said:
While carrying a HEAVY 32" CRT TV my phone fell out of my pocket and I inadvertently stepped on it while wearing steel-toe work boots. The phone seemed to work even though the screen was cracked... I could get the comm manager up and push where I remembered the vibrate button to be and it seemed to work.
I put in a new LCD panel and all I got was a boot sound and a white screen, so I also tried a new flex cable with the same results. I also can't seem to get any kind of reaction out of it like before so I'm not really sure where to go next.
I'd really like to fix this thing but it's not worth putting an arm and a leg into it.
What do you guys think I should try? Anything I'm overlooking or something? Any help would be appreciated.
Thanks,
Noah
Click to expand...
Click to collapse
You need to be sure the new LCD is made by the same company as the old one. This is ESSENTIAL. See this thread:
http://forum.xda-developers.com/showthread.php?t=485961
In particular my post no 4.
Mike
Thanks for that tip, but both LCD panels seem identical except for the stickers, but the model numbers on the stickers are both the same. One has a larger print than the other. The number on both is TD028STEB1, and they both have a black ribbon cable.
Hmm. I just noticed. The old LCD panel says P/N 60H00037-01M and the new one says P/N 60H00037-00M. Even though these are both the Toppoly LCD panel could this mean they are incompatible?
Thanks,
Noah
Well, I think those two are compatible (bith Toppoly). So assuming the new one is ok as a replacment it leaves a couple of possibilities I think:
1
The connectors need to be re-checked.
OR
2
in the worst case scenario there is damaged to the d/pad board. A chip on the d/pad board is crucial for the functioning of the screen. Unfortunately this chip can be prone to micro fractures in the soldering between it and the board. (Even with normal button pressing many members have had a "white screen because of this cracking). Some members have found that putting a little padding on top of the chip to push it against the d/pad board can be used as a solution. (I think though, that this should be vied as a temporary solution).
Just my thoughts.
Mike

Tried to replace my cracked LCD-display..

Hi!
I tried to replace a cracked LCD display on my Nexus One, but now the colors are all messed up. Have any of you had the same experience? It's like insane! The black is like grey, and there's like these horizontal lighter stripes across the screen. Could this simply be that the LCD connector is not properly attached to the motherboard? 'Cause it was kind of tricky to push it back in place. Had several tries where the screen was completely black, because of the connector not being attached properly..
Cheers!
There is a good chance you dont have the connector fully seated. There is also the possibility that you got a bad screen, where did you get the new one?
I bought it over at DHgate. I sent them an email, but they said they tested each screen before sending it out or something. But should it be THAT hard to press the connector into place? I've been struggling with this for a few days now.. I've also checked that none of the pins are damaged. Atleast what I can see without using some form of magnifying equipment
The connector on my phone just snapped in, as in you could feel it pop in and knew it was making contact, I really believe that if you could see a good connection you have a bad screen, try and take pictures of what it looks like when running
Did you get the right one?
AMOLED or SLCD?
Here are some images.
It doesn't look that bad on the images. Sometimes there's also flickering on the screen, but it stops after a few minutes of use.. Hehe.
I could feel the snap myself when i pushed the connector in, but it's still crap..
On my Dell laptop I have a similar issue where sometimes when the screen connector is pushed all the way in it shows weird colours just like in your pictures (sometimes also lines or other artifacts). For me the solution is to wiggle the contact with the laptop running until it is sufficiently loose where all pins make good contact.
I also remember similar artifacts when an iPhone I fixed had poor contact.
You could attempt inserting the connector with the phone running, but beware of static, and also note that not all electronics like being powered up that way (i.e. I'm not responsible if you break it more than it already is ).
Thanks for the tip, xdZKu7, but no luck. It was either flickering/tweaked colors, or nothing.. I don't want to waste any more money on this phone now, so I'm thinking of investing in a DHD instead =) And this time with proper insurance!

A500 seems bricked but not bricked (I think)

Hi, I cracked my outer screen on my A500 and just got a replacement. The tablet worked fine though. The touch screen still allowed selection of anything on the entire screen even though it had lots of cracks on it. The LCD screen wasn't damaged at all.
Followed the videos to replace the screen that are posted to the letter, slowly and methodically. So I separated the outer screen from the display OK (it was a bit of a challenge since the double sided tape was holding pretty good).
Everything went together OK. I go to start it and the screen glows as it normally does as the very first part of the power-on. But nothing else. No logo, no messages - nothing.
But I plugged it into my PC via micro USB on a whim and lo and behold, I can actually see the internal storage and SD card. Looks like everything is there. And if I do the long press where I recall some of the icons are, I can feel the slight vibration as it selects the icon. So it would also appear that the touch screen is functioning too.
So it looks like the unit boots but for some reason, won't display. The screen just glows faintly like the very first part of a power-on.
Is there hope? Is there something I can do or check? Is there a way to verify the LCD without buying a new one?
Thanks,
Bob
RKramkowski said:
Hi, I cracked my outer screen on my A500 and just got a replacement. The tablet worked fine though. The touch screen still allowed selection of anything on the entire screen even though it had lots of cracks on it. The LCD screen wasn't damaged at all.
Followed the videos to replace the screen that are posted to the letter, slowly and methodically. So I separated the outer screen from the display OK (it was a bit of a challenge since the double sided tape was holding pretty good).
Everything went together OK. I go to start it and the screen glows as it normally does as the very first part of the power-on. But nothing else. No logo, no messages - nothing.
But I plugged it into my PC via micro USB on a whim and lo and behold, I can actually see the internal storage and SD card. Looks like everything is there. And if I do the long press where I recall some of the icons are, I can feel the slight vibration as it selects the icon. So it would also appear that the touch screen is functioning too.
So it looks like the unit boots but for some reason, won't display. The screen just glows faintly like the very first part of a power-on.
Is there hope? Is there something I can do or check? Is there a way to verify the LCD without buying a new one?
Thanks,
Bob
Click to expand...
Click to collapse
Well Bob, glad to see some folks take matters into their own hands!
I can't find the post, as it was a couple years or so ago. But I specifically remember a similar situation. And from what I know, when you tighten/place the screens together, you have to make sure you tighten them evenly, or else nothing works. Something to that effect. Also, I would probably take it apart again, and double check that everything is connected the proper way. Look for possible bent pins and such.
As far as I know, there are no software maintenance apps to check the lcd. Not to my knowledge anyhow, As we pretty much have all maintenance software for the 500/501.
Wish I could be of more help. I know awhile back, a couple of folks here in the forum replaced theirs after their kids stepped on them.

Bad screen??

Pulled my phone out of my pocket this morning and saw lines, distortion through out the screen. Everything except the top 1/4 of the screen. Screen wasn't hit. Was working fine a hour a so earlier. Really just want to know if anyone has seen this before. I'm pretty sure it's the screen but want to make sure before I go and order a new one. Thanks for any help.
Maybe loose connection between lcd and flex cable? These screens don't just get defective out of no reason.

Black Area on the screen

Hello everybody,
Recently, a small black area appeared on my screen of my g2 verizon, like in the picture, and it bothers me
So i want to know if there is any solution to make it disappear or to fix it
Thank you
That looks like an issue with the lcd back light itself.
Can it be fixed yes....is it worth the hassle probably not.
If you're bold and skilled, a new lcd back light runs 5-10.00 on ebay & can be done in <15 mins

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