I just replaced my old broken LCD screen for the mda and installed the new one. The screen works and so does the touch screen but there is no backlight and settings are on for backlight... Whats wrong??? Please help..
I haven't opened the MDA so I'm not sure what the cabling is like (to know if it is a separate cable that controls the backlight or not, if so then this might be inaccurate)...
Sounds to me like the LCD has a dead backlight. Was it purchased used or new? and where from? meaning was the dealer reputable. If so, contact the dealer and ask them for a replacement. As, at least on laptops and most (though not all) electronics, the backlight is integrated into the LCD housing and sold as a single unit. So a failure of the backlight, though replaceable, usually results in the replacement of the screen as a whole.
The LCD was purchased new and came in packaging and had the plastic still on touch screen. Purchased it online. The screen works fine its just the backlight. you might be right about the dead backlight I'll contact dealer and tell them. Thanks
MDA Backlight issue
I ran across a problem with the MDA, where I adjusted the Backlight settings. From there on the Backlight woulf not turn on unless I went to the setting control to adjust it. The fix: Go to backlight settings, set your brightness desired (maybe in the middle). Go to Battery power from the tabs that are currently listed. Make sure you have (Turn on Backlight when a button is pressed or the screen is tapped) Selected. Then press ok.
That should fix it if the issue you are experiencing is similar to mine.
i tried the settings and no good..Is there anything else I should try? Please help.
tried these settings and no good...is there anything else i can do please help..
Related
The screen on my XDA2 is getting too dim to see in the daylight. It used to be fine, and the problem seems to be getting worse. My XDA2 is a demo device so is a few years old now, maybe this is just age related.
I thought it was WM2005, but I re-flashed to the O2 official latest update, and it didn't help. Does anyone have any ideas? Is a new screen the only solution?
It would be a shame to have to change the screen, as it's not in bad condition, other than being too dim.
Any ideas received with thanks.
Richard
Hello.
Sorry if this is too obvious, but have you checked the brightness settings in 'Start -> Settings -> Backlight -> Brightness'?
Also, does the brightness look any different when running off AC power instead of battery?
Is it just as dim at the splash screen after a reset?
Sadly it's as dim when it boots up, and the brightness is turned all the way up.
There is no change when plugged into the cradle, the charging adapter, or the car charger.
Does anyone know what is used for the backlight? I wonder if it is changeable, from a device with a broken screen?
Unfortunatly I don't want to take the thing apart if I can help it, not untill I know if it can be fixed. The risk of damaging the screen, and killing a PDA/phone I use every day....
Thanks for the reply though.
Richard
There is a Toppoly TD035STEB2 display, used in Qtek 2020. Backlight is LED based, so, service life should be several dozen years... Check, if you have any change, when you move brightness slider in control window. Most probably, you'll be unable to fix this problem yourself, however, if you will find a second device working properly, you can try to exchange system board to find roots of problem - board or display. From my experience, most probably, there is a problem on system board, connected to backlight circuit.
Could you post a screen photo?
Hey Richard, did you ever sort your display problem. Mine does the same and I'm interested to know if its a LCD or Board problem
Thanks
Larry
Hi mates yesterday i bought a used herm...with excellent condition. but when i opened any dialog. the window closed automatically. and the screen light remains always on. and touch is creating problems.
and after some time the touch screen totally stop working. i dont know what happened. al the buttons are working fine. i upgraded my t-mobile herm to its original t-mobile wm6 rom. and again the touch screen is not working. and the screen light always stay on..
so is this hardware or software problem.?
guide me if you have any clue about this..
according to my thinking.. i think some button is pressed continuesly.. but everything is working fine.. only the touch is not working.
broken digitizer for the touch screen, buy a replacement lcd/digitizer together and replace yourself, about $100Aud. Use Mike Channons site to download the service manual. Use the search function and type in "htc service manual hermes".
As for the light, you will have to use your buttons to navigate to settings>system>backlight>battery power and external power. you can select how long the backlight remains on for.
Cheers...
Hi mate thanks for your reply.. Actually the situation is that. the screen is working perfectly. all buttons are also working perfectly. but suddenly the touch feature stopped working.
that time i was just opening some menus and they closed automatically. it looks like that there is some button pressed. and the screen light never stops. it continuously remains on. all buttons are working perfectly and everything. on the touch feature is not working.
i upgraded my device with genuine shipped t-mobile wm6 rom and again it stopped at the starting screen where i have to click the screen and the device brings the window for stylus adjustment.
so i wanna ask that is this also possible that some touch drivers are corrupted or something like this.? or is this a hardware failure.?
Kind Regards
I had same problem, it was hardware. Thats why I said to change the lcd. It is theoretically possible to replace JUST the digitizer, BUT, it is a MAJOR hassle.
As for getting past the alignment stage, look up Remote Screen Alignment. Its a cab file that stores the alignment settings on your pc. You WILL have to have a friend that has the same phone so you can get their settings as you need to copy them to your pc first. You can then copy the settings to your phone so you can use it until you replace that pesky lcd...
Cheers.....
I had a similar problem with my hermes. After a lot of investigating, I found out that this is a heat related issue with the hermes. The unit will heat up an some connection somwhere gets messed up and continually registers ghost taps on the upper right corner of the screen, which causes the continual opening and closing of programs/task manager. This overloads the phone which then causes the screen to eventually become unresponsive due to excessive computing.
With my phone, it must be heat related because it will only occur during or after heavy use or overcharging. Other people have had this exact problem with the conclusion being overheating. The worse part is, there is apparently no way to fix this, replacing the screen doesn't change anything. setting your screen alignment very far left will fix the problem but then everything you tap needs to be compensated for.
Good luck, hate to be the harbinger of bad news, but it's better to know whats wrong and that you can't fix it then not know whats wrong and keep trying to fix it.
same problem here... only my hermes is overheating already after 5 minutes use...
in the morning it works and when i put it in front of the airconditioning the touchscreen also works...
somebody who has an idea where to look for a solution??
kingsfan said:
same problem here... only my hermes is overheating already after 5 minutes use...
in the morning it works and when i put it in front of the airconditioning the touchscreen also works...
somebody who has an idea where to look for a solution??
Click to expand...
Click to collapse
Some of the suggestions in the white screen thread/s might help. The problem is that those who have the heat related problem will find it very difficult to trace the actual fault. The heat may be causing miniscule expansions on the boards / components and connectors. The tiniest of cracks or poor connections can therefore break with the expansion.
Another theory is that rather than heat it might be a capacitor that is breaking down either over time or again through heating. Unless you are a skilled electronic engineer that is virtually impossible to check, particularly since schematics are not available.
You might just be lucky if you dismantled and re-assembled - it might just re-set a connector or adjust a board so it does not get affected in future. That would be very much a matter of luck and of course potentially the situation might be made worse!
Mike
Hi mates. I am back with some issue.. i moved my device to a repair center and he said that its a software issue. and he fixed my device without changing any rom.. i dont know how..
but again when i open some window like programs. the right scrollbar make a problem... when i move scrollbar it automatically press the top close button..i aligned my screen 3 times but same problem with right side scroll bar.
and after playing with it. the touch totally stopped.
now the thing is.all the buttons are working fine and everything is working fine. even sms and calls. but when i check sms and press my scroller button. it displays the right click menu instead of opening the sms. and the screen light is continuesly on. as something is pressed. so. i think this thing wil help. i am now trying this method to check my pc.
http://inuchanbt.blog54.fc2.com/blog-entry-99.html
check this out as well.
i will send you details soon.
might just have something lodged between the case and screen.. also to get rid of the screen alignment, cable it up and delete welcome from the startup programs and then reset it.. should get you past it so at least you can use it until you repair your screen
I am currently in discussions with the screen's vendor about the issue, but I figure somebody might have some advice to offer here too. I purchased a replacement screen for my Vogue after I cracked the factory LCD. Touch membrane was fine.
Opened the phone, pulled out the old LCD, replaced with new one, etc. At first, the "new" screen seemed to not power on at all - then after several cycles of open phone/test connections with old LCD/rebuild with new LCD I finally got the backlight on, yet the display itself seems to not be working. There is an ever so slight greenish glow in the bottom left corner of the replacement screen when the backlight was on.
Several hours later, during which time the phone just sat on my desk idle (but on) I hit the power button to turn on the screen and was dismayed that the backlight did not come on (simmilarly to how it was originally.) I am certain the phone was assembled correctly, all connections are secure, etc.
The vendor suggested adjusting brightness/contrast settings, which I skeptically tried to no avail with MyMobiler. So at this point, the backlight seems to work when it wants to and the display seems to not work well at all.
Has anyone else seen anything like this?
OK ordered a replacement screen with digitizer, despite only my digitizer being cracked (surprisingly everything still worked even touching in the damaged half of the screen) as I had read it was far easier to replace the whole screen.
Well I can tell you its still not that easy. After a slow struggle I did manage to swap the screens over, but alas no joy. The phone is probably starting up as there is the usual vibration after release of the power button. The screen backlight is on, but no display.
So now I come to the questions I probably should have asked up front, before ordering.
Are there different models of the screen ie different generations of HD2 have different screens? Is there a way to tell which one the old and new one are? I note that the YouTube video of a screen being replaced shows slightly different internals to mine, thus my suspicions regarding variations of screen.
Lastly would the Telstra Phone version have a different screen from the universal version of the same era?
I will pull it apart again this evening and see if I can see any obvious differences (or install errors) but if there is anyone with knowledge that can guide me as to whether I have the wrong version screen I would be grateful.
Cheers.
Continued
Opening up everything again shows both screens have the same HTC part number: 60H00295-DOP and similar serial numbers. So I reinstalled the old display - no change - a blank screen. Checked over all the connectors, ribbon cables, etc all look correct. So reassembled with the new display and performed a Hard Reset. This occurs as expected though with no display. All the buttons work and I hear a peep as the volume is raised up and down. The soft reset button causes the usual restart effect. I also note that back light comes on, stays on for 30 secs, then dims then turns off 30 sec later. I can even tell that the touch part is working as I can feel small vibrations to each touch and if I'm in the volume set screen and I touch where vibrate is I get the usual vibration confirming it has changed to vibrate mode.
It would appear that in the process of changing the display I have damaged the display driver chip or something along those lines as the other processes above tend to indicate the processor is still working and reading button presses, making sounds etc....very sad.
My Atrix's screen randomly stopped displaying anything. You can see that the backlight turns on and off but nothing ever displays. The screen isn't physically damaged and the touch sensor is also functioning just fine. If I plug it into my Lapdock - I can use the phone with no issues, I'll just never get any sort of display on the cellphone's screen (Outputs to Lapdock's screen just fine).
Any ideas or suggestions?
are you able to adjust screen settings when you're on lapdock? (and does this change anything?)
It does sound a hardware issue with your screen... maybe others on here can offer more help
Just tried playing around with the settings - no luck
Do you think maybe the display cable somehow disconnected? I'm not sure how the Atrix is designed but I think you'd normally have a separate cable for backlight, touch, and display. Maybe I'll try disassembling it and report back.