My daughter recently cracked the screen on her Motorola Defy and so I bought a replacement screen + housing to change it. I've just swapped it over and am now getting some very strange behaviour with the touch screen. The best example is if I try and send a text message using the keyboard that appears at the bottom of the screen (holding the phone in portrait mode) - the i, j, k, n and m keys don't register and when I press the s key the letter j appears!
It looks to me something to do with screen calibration but my understanding is that the Defy uses a capacitive screen and so it shouldn't need calibrating.
What makes it stranger is that if I go back to the old screen the problem still happens!
All suggestions greatfully received!
things to try
1st unplug the connector [the screen] and using a soft brush, gently brush the connector, then re connect it to the board, to see if all is ok.
If that fails your next step is to connect the cracked screen, and try the keyboard again. This will narrow the problem down to it being a faulty part, a mechanical fault, or an on board issue.
if that works ok, [the cracked screen] you've probably got a faulty screen, and need to get in touch with the retailer for a replacement.
Related
I dropped my phone and the screen now doesnt respond properly: The hardware DID successfully upgrade to the XDA ROM. But touching it causes the backlight to go on, - but most of the keys dont do what one would expect them to do: The phone turns on with a reminder from the calendar on the screen which wont DISMISS or CLOSE. Pressing on the windows logo and then on the phone key causes the calendar to come up and I am not sure which numbers are entered when I do manage to get the phone to come onto the screen (none of the right hand numbers seem to work at all). Does anyone recognise these symptoms and/or could they just show that my SX-56 needs the ROM RE-flashing? I should add that pressing the Master Reset button with this ROM in place seems to make the phone shut off and then when you restart it, all of the data remains in place. I wonder if there is any possibility that the XDA ROM has prevented the reset button from working normally?
A user on another forum said that to him, '"Sounds like the digitiser is up the swanee - have you tried recalibrating it?"
10-12 vertical black lines started appearing to the right hand edge of the screen. Sometimes they are there, sometimes not. THere is usually at last one there somewhere. At about that time the screen stopped responding as I mention. Today the left third started displaying the same veritcal lines, though spaced quite far apart (about a millimetre). Screen doesn't APPEAR cracked: Does this sound like a digitiser and if so, how do you recalibrate it please or is there a link to somewhere on the XDA site which I cant find which might tell me? Or could it be the cable is loose in the circuit board? As you touch the lower right hand corner of the metal casing where the vertical lines are, those lines flash (the right 10 or 12) on and off. And every coloured bar everywhere on the screen or word of text has vertical lines on it (the white parts don't)??
Someone on ebay has said that his phone "fell from my pocket and onto the carpet and the screen cracked, I then used it for about a week" "I sold the screen to someone cause the wanted the touch pad part of the screen for there phone". and wonder what it was he sold or which part can be replaced on it? IS there a touch part and a screen part on this phone?
To be honest, itsounds like you have brocken a connection somewhere between the LCD and the gfx output, probably not possible to repair yourself.
I wonder where the break would be?
I thought that might be the case: I wonder if it would be worthwhile trying to get another screen?
I should probably try to take the unit apart and see if some break somewhere can be identified if it is a break as opposed to some electonic part having failed. It SEEMS to be in the lower right hand corner?
The touch screen responds to continuous taps even when I don't tap it. When the keyboard is slid out, the start menu keeps on popping as if the start button on screen is being tapped. When keyboard is slid inside (device is closed), the device behaves as if the OK button (the "X" on top right) is being tapped continuously. Due to this, I can't open any program. (As soon as a program is opened, the "X" button on top right is automatically clicked and I reach Home screen again!
I uploaded a video about this mal-functioning of device:
http://www.youtube.com/watch?v=YWAyRLQ01oo
I have already:
1. Alligned screen
2. Hard reset device (Left and Right softkeys + Reset button)
3. Updated ROM and hard reset device
but of no use! Please help.
I haven't heard of a software problem causing what you're seeing on your phone. And a hard reset should have cleared that if this was the case.
Do you have a screen protector applied? If so then make sure it doesn't reach under the cover round the screen. Maybe some dirt got in between the screen edge and the cover?
If the phone is under warranty then just take it to the service centre.
maybe you have a warped case...the flexing might cause the touchscreen bezel to make contact with the screen. it may flex differently when opened/closed.
what happens if the slide is 1/2 open?
jamiefiedler said:
maybe you have a warped case...the flexing might cause the touchscreen bezel to make contact with the screen. it may flex differently when opened/closed.
what happens if the slide is 1/2 open?
Click to expand...
Click to collapse
This is the most likely explanation and there was an identical case reported in this forum somewhere.
Mike
Even when its half open, the OK ("X" on top right) keeps clicking.
I'm using the same case that came with JasJam. Have attached a screen protector to the screen. Could that be the cause of problem?
I contacted imate support. They asked me to send the device. Hopefully, the problem should be solved...
jaimingandhi said:
Even when its half open, the OK ("X" on top right) keeps clicking.
I'm using the same case that came with JasJam. Have attached a screen protector to the screen. Could that be the cause of problem?
I contacted imate support. They asked me to send the device. Hopefully, the problem should be solved...
Click to expand...
Click to collapse
before you send it in, remove the screen protector and try it again. even if it doesn't work, i wouldn't send it in w/the screen protector on anyway...
Wow! Seems the device has problems with heating up! Found this thread:
http://forum.xda-developers.com/showthread.php?t=285062
Solution: Send it back!
I had to send it back to service center. They replaced the main board! The device seems to be working fine now.
Hi,
I had the following problem with my HTC Diamond 2 (it might have got wet & it might possibly have had too much pressure on the screen)
Problem:
The mobile boots ok and the normal buttons at the bottom work fine, as do the volume up/down buttons. The display, however, has what looks like the newton rings and when I press the display it detects a 'press' about 1cm to the left of where i pressed. This means I can't use the right hand side of the display and also can't enter my pin.
Error Diagnosis: (from Arvato Services in Germany)
Mainboard is defect. Cost to repair = € 303.17
Is this possible ? If there was a problem with the mainboard then I would expect to see other problems - and at present, I can only see that the touchscreen has a problem.
Please let me know what you think, thanks in advance !
(ps there should be a question mark at the end of the 'title', don't seem to be able to edit though)
Based on your description and from what I've read, it's definitely the digitizer.
It is possible that you have a damaged board, but regardless, your digitizer is bad.
I would attempt to replace this yourrself then see if everything is fine before sending it to repair.
I had the same problem!
The screen was getting worse in alignment over a time frame of a couple of days. If replaced the digitizer and screen and all is back to normal ..... however it seems to work better then ever before.
The only problem left is dust between the digitizer and my screen, but this is my own fault since I didn't glued the screens. I'll re-open in the next few days and use some silicone to close the gaps. Mainly the volume key has an opening to the outside.
Good luck with the replacement!
Yesterday I was working on my HTC HD2, flashed WP7 Mango on it, and opened it again to align the plastic keys with the hardware keys undeneath. It didn’t really work out, so I carefully seperated the digitizer from the display to realign theglass abovethe keys. Now The keys work perfectly, but the screen doesn’t react anymore. I have no clue what could’ve went wrong, the digitzer flex cable is still perfect, aswell are the others which connect the screen to the motherboard. Anyone have a clue what could’ve went wrong? I hope it can get fixed easily
I’ll try to hold the ‘end call key’ while using the display. Seems like that will help to entight the connection.
Fix: So I took the Display out again and checked the connection of the digitizer at the back of the screen. It was loose. So i've put it in place and fixed the connection with some extra tape.
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.