Touch screen not working in the center only - General Topics

Hello,
my firend's qtek s200 has this problem.
There is a 1,5 cm circle in the center of the screen where it won't "touch".
I took the phone appart, and even removed the touchscreen layer from the lcd.
I then glued it back on but the problem still exists.
If he buys a lcd+touch screen from ebay, will that be enough? I mean, could it be a problem on the motherboard?
Any help is appreciated
Thanks

Did you check also the flat wire that connects lcd to main board?

User22 said:
Did you check also the flat wire that connects lcd to main board?
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Yep, it seems to be in a good condition.
I reconnected it, cleaned it etc.

I've same problem.
Have you solvet it?
Thanks

Related

Broken LCD what can I do?

I accidentally broke a 1cm strip at the top of LCD on my Touch Cruise, not the touchscreen but the underlying LCD.
Do I have any options apart from replacing the phone?
Not realy...
karlth said:
I accidentally broke a 1cm strip at the top of LCD on my Touch Cruise, not the touchscreen but the underlying LCD.
Do I have any options apart from replacing the phone?
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how did it happened ?
eami said:
how did it happened ?
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It was in my jacket pocket and hit a side of a garden bench. Not a major blow but enough to crack it. Then again I always felt that it wasn't particularly well glued/screwed together (Mine was from the first batch of phones).
Strange because my old HTC Prophet seemed to be able to withstand any punishment.
is it the digitizer that broke or the screen as well ?
digitizer
http://cgi.ebay.co.uk/LCD-TOUCH-SCR...ryZ41343QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
screen
http://cgi.ebay.co.uk/NEW-LCD-FOR-H...photoQQcmdZViewItemQQ_trksidZp1742.m153.l1262
both are in decent price i guess
Brilliant
I'll order one immediately.
Is there anywhere in the net a "how to" that shows me how to open the Orbit II?
Not that I'm aware of but I'm expecting instructions with the LCD when I receive it.
most sellers don't provide instructions to disassemble, especially if off eBay.
Look at this...
Hey,
look in this Thread, maybe that this could help you.
http://forum.xda-developers.com/showthread.php?t=392301
Frank

screen replacement

Hello,
I just bought a touch screen for diamond and i am wondering to know if i can replace it without replace the lcd screen!!!
ferrari373 said:
Hello,
I just bought a touch screen for diamond and i am wondering to know if i can replace it without replace the lcd screen!!!
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I have replaced several screens on Touch Diamonds, however the LCD matrix appears to actually be stuck onto the digitiser and the LCD itself is very very fragile. I usually replace the whole unit (LCD screen and digitiser) because it is much easier. You can purchase these from various sellers in Hong Kong on Ebay.
I have allready bought a touch screen but not the lcd screen!!! Do u have a guide or something that shows how to change it???
ferrari373 said:
I have allready bought a touch screen but not the lcd screen!!! Do u have a guide or something that shows how to change it???
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My recommendation would be to re-sell the touch screen and buy yourself a complete LCD & digitiser module. It is much much easier to do. In terms of taking the phone apart, it is fairly straight forward. Be careful with the small co-axial cables inside though, because they are easily damaged and difficult to obtain without replacing the antenna board. Re-connecting the ribbon cables can also be a bit fiddly.
The LCD and digitiser are glued into the front of the phone. You will need to disassemble the phone and then very carefully using a plastic flat blade, ease the LCD out of the front of the phone housing. It will come out with a little bit of care. There should be enough glue remaining in the housing to re-seat the replacement unit and hold it in place.
If you google you should be able to find the HTC Diamond service manual which tells you how to take the phone apart and re-assemble it. I have a copy, so if you can't track it down, PM and I will e-mail it to you.
Andy
Hi,
To barncourt, how is the build quality of those honk kong made screens?
also a lot of the screen+digitizer that i have seen on ebay all have the front facing camera. would it be possible to use that screen even though my diamond is the one that has no front facing camera?
Of course, it is just a hole
p.brazauskas said:
Hi,
To barncourt, how is the build quality of those honk kong made screens?
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Okay, but I tend to buy from the same seller. Not had any particular problems.
barncourt said:
Okay, but I tend to buy from the same seller. Not had any particular problems.
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Hi I wanna know can you share your supplier adress with us ?
I'm looking for a LCD+digitizer and what I see is not something giving confidence...
So if you can give us some real-tested place to start...
Also I've dismantle the phone but it's quite hard to take the screen+digitizer away...
it's seems completely fixed with the housing does some one got s pics or guide on how to dismantle and replace the screen
(The HTC service guide you can see here and there just don't deal with the screen.)
and when I started just broke my screen (which was already broken anyway so...)
http://www.fuelip.com/howto/diamondlcd/diamondlcd.htm
I followed that guide and replaced my screen. I have one last problem though - I can't fit back my power button. It's made of two parts the black plastic cover and the transparent rubber. How do you stick them together? I'ts funny that I took my whole diamond apart with all the cables and boards and now I can not figure out how to fix a silly button

New LCD+digitizer problem

Hi,
I have just replaced LCD and digitizer of my HTC raph (first time) and there seems to be some kind of problem. It turns on, but the screen shows nothing just lights up a little bit and there are some stripes visible as if the lcd would be broken, but it's brand new. The stripes changes a bit as i press some buttons or touch the screen so the phone and touchscreen are working - the problem is with LCD.
I don't know if i put all the conducting tape to the places it originaly was. Could that be a problem? I double checked all the connections but still, might be a contacts problem?
Any thoughts on what might cause this?
Also the phone got kind of hot after having it charged for some time, is that normal?
Of course, this may be caused by a bad connection (but rather hard to go wrong slot), but at a distance hard to say something more concrete.
Best to check with the new flex.
Thank you for the answer, i will try changing the main flex.
The flex cables can touch eachother right? Since they're originally covered with conductive tape.
BTW, i also intend to change the lcd + digitizer... my question is:
how to apply the digitzier? lcd and digitizer came separated - do i have to solder/glue or whatever the flex (of lcd & digi.)?
The original was something like sticked together... reminds me on sellotape aka Scotch Tape.
Can you give me a some help?
thanks
The ribbons must be solded together, there's 4 contacts on them and they should not touch eachother.

[Q] Desire S LCD/digitizer problem

Hi Guys,
I have little problem with my Desire S. I have recently replaced the digitizer. After fitting it and checking the phone i discovered that top area of touch screen isn't working. So I took it apart again and accidentally broke the LCD. So I ordered LCD and digitizer as one unit from ebay, fitted it.....And LCD is working fine, but new digitizer isn't working properly. I'm pressing bottom half but its registering touch in top half. Also for buttons at the bottom don't work.
So I plugged in old digitizer and it works ok apart from that faulty top area.
I had it sent over to some repair shop and they tested it with LCD/digitizer as one unit with same fault. But my old digitizer works.
Any ideas?
Thanks
Marcin

After screen replacement touchscreen is not working

I changed screen assembly to my boys Honor 8. All went well.
Not so nice job BTW.
I tried that the screen was working but didnt tested the touch. I reassembled it and noticed that the touch is not regonized.
Does somebody have any clue or is the assembly just broken? :crying:
Likely you didn't connect the digitizer, or the digitizer is broken. Touch won't work without digitizer. I don't know how to fix it, you may have to look it up, maybe Ifixit has a guide. You may need to buy another digitizer for Honor 8.
Problem solved. I detached screen again. In bottom of the screen there was digitizer connector. It looked OKAY but I disconnected it and but it back firmly. Touch started to work. Yeah baby ??
Nice. Was I of any help?

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