Hello everyone,
I have got one problem... I broke digitizer of my HTC Desire 500. So I order new one and to be sure, also LCD screen. I replaced, and...
After turning on, everything works fine. Digitizer works properly, screen shows normal picture. But after few minutes - restarts (I don't remember well) backlight of my screen goes down and now it have no backlight at all. I rebooted phone many times, I remounted screen and digitizer to be sure that connections are fine - but no results. I restored factory settings of phone with no effect too. :/
Please help, what happend? What could be the source of problem? I don't want to order new sceen if it could beak too ;/ I read other threats about coil problem in other HTC, but I cannot find any coil in my Desire's motherboard (maybe it is hidden under plate that covers CPU and other parts). I performed tests of light sensor and it works fine. Buttons lights fine too. The problem refers only to LCD screen, and backlight doesn't respond during test.
Anyone help?
same situation
Hello kowal_luki,
I'm just in the same bad situation.
After a bad fall of the phone the screen broke so I ordered a new one for replacing it.
Opening the phone I noticed that also the LCD (and not only the external screen) was broke so had to order also the LCD.
As precaution tried to power-on my device without a complete assembly and everything seemed to be fine, so I decided to glue the LCD to the outer screen (the touch screen) with a LOCA TP-2500 glue.
Then I re-assembled it up: at first the image was a little bit disturbed but the back-light was working; after few second the back-light turned off. I checked the cable, after that the image went perfect but the back-light still dead.
Did you find a solution for this -still not explanable- problem?
Related
I broke the digitizer on my 8925 about two weeks ago. The screen has displayed properly, I just lost the touch screen functions. I purchased a new digitizer and replaced it with no problems. Once I rebooted the phone I have nothing but a white screen and no screen functions. I am using trueconnect and can see that the output from the phone is working properly. I rechecked all connections and they are fine. I have tried to reflash the phone with no avail. i either get a connection error or a user error code. Please advise
The main times I've seen reports of white screen after a digitizer/LCD replacement is either the ribbon connector is loose (you really have to snap them in all the way), the ribbon cable is bad or the wrong screen was installed (I belive there is more that one part number that fits but not all work).
I just replaced a screen in a Trinity (Dopod D810). The touchscreen initially wasn't calibrated correctly so I ran the alignment tool in the settings, and after a few attempts, I calibrated it properly and the touchscreen was working perfectly. Now the touchscreen is not working properly. The top half of the screen responds to touch, but no matter where I press in that region, the screen thinks I'm pressing the top-right corner. When I run the alignment again, it responds to all the touchpoints but it never successfully calibrates and it keeps bringing me back to the alignment screen.
The current settings in the registry entry for touch calibration are as follows:
484,558 244,286 263,815 750,820 707,295
I've found a few other threads here (the most helpful being http://forum.xda-developers.com/showthread.php?t=355010) and I've tried the settings from that thread. The screen seems more responsive, but still not correct because the bottom half hardly responds and the top half seems to respond when it feels like it.
Can someone please post their D810 touchscreen settings so I can try it? I've tried the settings from my Touch Cruise, but the screen is still doing weird things.
This is a customer's phone so I need to have this fixed ASAP.
I'm thinking that it may be a faulty digitizer, but that won't explain why it worked perfectly when I first calibrated it.
UPDATE: NOT FIXED yet, but now the backlight is dead. I just turned it off, and then turned it on again, but I can only see the screen content if I shine a torch onto the screen. The LCD hasn't leaked. The backlight just died and the connectors in the phone are fine. Perhaps this was a dodgy screen.
Any ideas?!
since the device has a recessed screen, take the cover off to get at it.
take a soft cloth or something and clean off all the garbage on the digitizer and back of the plastic. make sure everything around the lcd is free of dirt.
usually, if there is something pushing down on the digitizer while you calibrate it, it will totally bork the alignment over the course of 10 minutes to an hour.
my kaiser is currently having this issue, though i put it though alot more hell then i should have... so i suspect its suffering from other issues.
Hi, i'v got a problem. I tried change my digitizer and, when im done, now lcd doesn't work, because it is still white...:/ What can i do now? any solutions?
Thanks a lot
Check your connections. Pull apart and re-seat everything to ensure everything is hooked up good.
everything is fine :/ still white screen
Perhaps you zapped or damaged the LCD when you were working on it...
You could try replacing the LCD too -- but at this point I think I would send it to the professionals
HTC repair or someone like PPCTechs
Don't know if the screen set up is still the same. But when I replaced the screen on my Universal the wiring for the touchscreen was stuck down onto the lcd wiring, as they both shared common earths. Maybe worth a check before spending more cash?
i have the same problem, the screen was working fine before i replaced the new digitilizer and now its just white but i can hear the tablet playing so it must be the screen.i checked all the wiring 4 times now! any idear???
:crying:
Slide the phone open and apply some pressure near where the angle of the opening is (back of the LCD below the SIM, where there is a bar). I had the same issue and this fixed it.
Hi everyone!
Sad thing happend with me, 4 days ago i fell into a river and sadly ma diamond was in the pocket. I dryed it for three days, turned it on, everthing else works, besides the screen light. So i dissambeled the phone to bits and pieces, only i didn't took the LCD out(read it from somewhere that you can't put it back on afterwards so it will work). I reassambeled it and still same situation. If you look it from a angel you can see the icons and even touchscreen works. Only problem is still the backlight. So is there something i can do to make the backlight work again or i have to buy a new screen and is it hard to swap the screen ?
Hi,
Not sure if you will need to replace the screen, if you can get to the power settings you can see if the backlight has been manually turned down. If this fails and a screen replacement is required i will tell you how easy/difficult it is once i have replaced mine, due to unfortunate circumstances.
yeah, i got into the power settings, everthing is okey there like it should be , so i have to change the screen. Is there some kind on intrcutions for changing it? it would help me a lot
Hello, guys!
Recently I bought an HTC One with cracked digitizer, but functional. It had a lot of scratches etc, but this is not important right now. I wanted to do a complete make-over so I bought replacement parts from the internet, I bought the front housing with the LCD screen and the back cover. I dissasembled the phone from the old housing (the one with the broken digitizer), and I assembled it back on the new housing. After all of that, I powered on the phone and it worked like a charm (the LCD and the touch-screen worked perfectly), but then I saw that the glass was a little out, I mean it was upper than the speakers cover, so I decided to take out the whole screen and to change the adhesive, because it was too loose and the screen wasn't staying properly. I succesfully did that, i put the screen back and everything was good, but when I wanted to start the phone, the screen remains black. And this is the problem I have. I mention that I worked very carefully with the screen, so I don't think the problem is at the screen. I disconnected and reconnected all the cables and still doesn't work. When I press the power button it vibrates and then it's making that sound like the phone is booting, but no image on the LCD. If I keep the power button pressed, the back and home buttons are blinking and then the same story as before, vibrates and then the sound. I really don't know what could be the problem.
I really need some help with this and I'm open to all of your suggestions. If you want more informations feel free to ask.
Thanks in anticipation!
To me it looks like you damaged one the flat flex cable.
When you took the screen out did it come like suddenly and maybe some tension was applied to the flat flex?
If I were you I would take it apart and verify the connection in the socket, maybe the socket was damaged or something and it doesn't make a good connection
I hope it works out for you
Thank you for your answer!
When I took out the screen, I took it out very carefully and there wasn't any tension applied to the flex cable, so I don't think this is the problem. I think it's more likely a problem with the socket on the motherboard, like you said, and it's not making a good contact. But what can I do about that?